Due Invoices Payment Email Scam Exposed: Fake SWIFT Receipt Login Trap
Written by: Lapain Epuran
Published on:
A remittance notice can arrive at exactly the moment an accounts team expects several payments. The promise of attached SWIFT records makes the message look easy to reconcile.
Before anyone opens those files, the claimed payer, invoices, amount, and receiving account should connect with records the business already controls.
Overview
What the payment email claims
The message says payment has been made for due invoices. It may carry a subject such as “Bank Remittance Swift copy for Due Invoices.”
A sender identified only as “Accounts Department” tells the recipient to download SWIFT copies. One or more PDF attachments appear to contain MT103 payment records.
The body is brief and businesslike. It avoids dramatic threats, relying instead on the ordinary expectation that finance staff review incoming remittance advice.
Important details are absent. The email may not name the payer, invoice numbers, amount, currency, beneficiary, project, or employee who arranged the payment.
What happens when the supposed SWIFT copy opens
The attachment may contain a link or direct the browser to a hosted document viewer. A faint invoice or payment page appears in the background.
A centered window says email verification is required. The recipient’s address may already be displayed, creating the impression of a restricted corporate file.
The form asks for the mailbox password before revealing the document. Submitted credentials go to the phishing operator, not a bank or trusted PDF service.
The promised MT103 record may never appear. Its purpose is to make a finance employee authenticate before confirming whether the payment exists.
Details that distinguish proof from bait
Real remittance advice belongs to an identifiable receivable. The email must fit the business relationship rather than create it.
No customer account matches the sender or claimed payment.
No invoice numbers or amounts appear in the message.
The attachments use generic or duplicated MT103-style names.
The PDF sends readers to an unrelated website.
A document viewer requests the recipient’s email password.
The receiving bank account shows no corresponding cleared credit.
A SWIFT-themed image can support reconciliation, but it cannot replace the bank ledger. Funds should be confirmed where they were supposedly received.
Why Finance Teams Are Attractive Targets
Accounts departments routinely handle files from outside organizations. Invoices, remittance notices, purchase orders, and statements arrive from many domains and document platforms.
That variety makes one unusual delivery method less conspicuous. An employee may assume the payer’s bank or accounting software chose the format.
Payment messages also have natural urgency. Staff want to allocate cash, release orders, update credit limits, and answer customers without unnecessary delay.
The subject uses familiar operational language instead of emotional pressure. “Due invoices” and “SWIFT copy” sound like routine bookkeeping rather than a security event.
Multiple attachments can suggest a batch settlement. They may also keep the recipient trying when the first file fails to display.
An MT103 reference carries particular authority because it is associated with international payment messaging. Attackers borrow the label without providing verifiable banking evidence.
Small finance teams may share responsibilities across sales and operations. One employee can mistake an unknown payment for work initiated by another department.
Larger organizations face the opposite problem. High message volume and distributed ownership can make it difficult to recognize every genuine payer immediately.
What an MT103 Copy Can and Cannot Prove
An MT103 is a standardized customer credit-transfer message used within the SWIFT network. Fraudulent emails exploit that technical familiarity to make attachments appear authoritative.
A picture labeled MT103 is not automatically genuine. Templates can be recreated, unrelated records edited, and transaction fields invented.
Even a genuine-looking document must be reconciled against the recipient’s bank account and receivables ledger. The beneficiary, value date, amount, and reference all matter.
A payment instruction does not always equal settled, available funds. Transactions can be pending, rejected, reversed, routed incorrectly, or associated with another beneficiary.
The receiving bank can confirm status using its own systems. A stranger sending an attachment cannot authoritatively declare that money arrived.
Finance staff should never release goods, refund an alleged overpayment, or change customer credit based only on a document supplied by the payer.
If a real customer sent the advice, their known contact can confirm it through an existing conversation. New telephone numbers within the notice should not be trusted.
When no receivable matches, curiosity is not a business reason to authenticate. Preserve the message and let security personnel inspect it safely.
Why Stolen Finance Mailboxes Are Especially Valuable
A finance inbox maps the organization’s money flows. It can expose customers, suppliers, bank accounts, approval habits, payment schedules, and overdue balances.
Criminals search for active invoice threads where a bank-detail change would seem plausible. They can wait until a large payment is nearly due.
A compromised account supplies authentic signatures and conversation history. A fraudulent message inserted into that thread is harder to detect than cold spam.
Forwarding rules can silently copy every future remittance message. Deletion filters may hide replies questioning a changed beneficiary.
The attacker can also collect tax forms, contracts, identity documents, and customer contact lists. Those materials support impersonation beyond the original victim.
Shared cloud access may expose invoice folders or accounting exports. Single sign-on can extend mailbox credentials into collaboration and storage services.
From the real account, the operator may send the same fake SWIFT lure to suppliers. Trust transfers with the sender address.
Recovery therefore requires a financial review as well as password replacement. Recent and scheduled payments must be checked for manipulation.
How the Scam Works
Step 1: An accounts department announces payment for overdue invoices
The email states that due invoices have been paid and asks the recipient to inspect remittance copies. Its wording assumes an existing commercial relationship.
The sender may use a real company name, a copied signature, or a vague department label. None demonstrates control of that organization’s accounts.
Because no exact invoice is named, the template can target many businesses. Each recipient is invited to supply the missing context mentally.
Step 2: SWIFT terminology gives the attachments authority
Files are named to resemble bank transfer records, sometimes including MT103, payment, remittance, or transaction references.
More than one PDF may be attached. The quantity suggests a complete payment package and increases the chance that an employee opens something.
A PDF format feels safer than an executable file. Yet PDFs can contain clickable links that lead directly into a phishing sequence.
Step 3: The file moves the recipient into a web-based viewer
Opening the attachment reveals a button, link, or locked preview instead of usable payment information. Following it launches an external website.
The domain does not belong to the payer, receiving bank, SWIFT, or an approved document service. Visual branding distracts from that ownership problem.
Tracking embedded in the link can identify which employee opened the message and when, improving later targeting.
Step 4: A blurred invoice is placed behind a verification prompt
The landing page displays faint financial content beneath a modal window. That design suggests the requested information already exists and merely needs authorization.
The email address can be prefilled from the original link. Recipients often interpret that personalization as evidence of legitimate access control.
The background may be a static image with no downloadable document behind it. Blurring prevents meaningful inspection before credential submission.
Step 5: The fake portal captures an email password
The user enters mailbox credentials to unlock the alleged SWIFT record. The page transmits them to the campaign operator.
An error may appear after the first attempt. This encourages entry of a second password or helps the attacker confirm a commonly used variation.
If multifactor authentication is enabled, another screen can request a current code or trigger a genuine approval notification.
Step 6: The intruder studies receivables and payment conversations
After accessing the mailbox, the attacker searches for invoices, beneficiary details, bank confirmations, and employees with payment authority.
Rules, forwarding, delegated access, or connected applications may be added for persistence. Security alerts can be hidden from the account owner.
The operator learns which customers owe money and how the finance team normally communicates. That intelligence supports precise fraud.
Step 7: A genuine transaction becomes the next target
The criminal may change banking instructions within an active invoice thread. The request appears to come from a known participant using the expected language.
Another option is issuing a false refund request after claiming overpayment. Shipping or service decisions can also be manipulated through fabricated settlement evidence.
By the time anyone examines the original phishing attachment, the page may be offline. Mail logs and account settings provide the stronger evidence trail.
Invoice, Payment, Attachment, and Mailbox Verification Checks
Match the notice with an actual receivable
Search the accounting system for the payer, open invoices, expected amount, currency, and due date. A legitimate remittance should resolve to a specific ledger entry.
Ask the account owner or sales contact whether payment was expected. They should recognize both the customer and the reason for settlement.
No match means the file should not be opened for discovery. Report the email and preserve its full headers for investigation.
Do not assume another department initiated the transaction. Confirm ownership explicitly before the message moves deeper into the organization.
Confirm cleared funds through the receiving bank
Access the bank using an established bookmark or approved application. Compare the actual credit with the alleged sender, amount, date, currency, and reference.
A screenshot, PDF, or SWIFT-themed copy is supporting material at most. The recipient’s bank ledger remains the authoritative source for available funds.
Contact the bank through a verified number when status is unclear. Never use contact information supplied by the unexpected sender.
Delay shipping, refunds, credit release, or expensive work until reconciliation is complete. Urgency from an unknown payer should not override controls.
Examine the sender and attachment path
Expand the full sender and Reply-To addresses. Compare their domains with the customer records already stored by the business.
Continue an established conversation or call the known contact. A newly introduced signature and telephone number cannot verify themselves.
Treat PDFs as containers, not proof of safety. Inspect whether links leave the document and which registered domain receives the browser.
Security teams can examine suspicious attachments in isolation. Finance employees should not use production mailbox credentials to test whether a viewer is genuine.
Protect mailbox authentication from document prompts
An invoice viewer has no legitimate reason to collect an email password on an unrelated host. Close the page when the domain does not match the identity provider.
If an approved cloud service is named, sign in through its known site first. Locate the shared file inside the existing account.
Pay attention when the password manager refuses to autofill. That behavior often indicates the current host differs from the saved login destination.
Require phishing-resistant multifactor authentication where possible. Strong authentication helps, but employees must still reject unexpected approval requests.
What to Do if You Have Fallen Victim to This Scam
Separate the incident into actions taken: opening a PDF, visiting the viewer, submitting credentials, approving authentication, or acting on the supposed payment.
Stop the conversation and document workflow. Close the viewer, do not reply, and do not release goods, credit, services, or refunds.
Change exposed credentials. Use the genuine email provider from a trusted device, then replace reused passwords on other accounts.
Remove persistent access. End sessions, revoke unfamiliar applications, delete unknown devices, and reset recovery or application-password settings.
Escalate financial checks. Alert finance leadership, confirm recent beneficiary changes, and contact banks about suspicious or misdirected payments immediately.
Notify commercial partners. Warn customers and suppliers whose invoices or conversations may have been exposed or manipulated.
Inspect affected systems. Run a full Malwarebytes scan after opening attachments. Use AdGuard to reduce malicious advertising and unsafe page exposure.
Preserve evidence. Save original messages, headers, PDFs, page addresses, login logs, screenshots, payment records, and the incident timeline.
Is Your Device Infected? Run a Free Malware Scan
Slow performance, constant pop-ups, or strange behavior? These are classic signs of a malware infection. The fastest way to find out is to scan your device with Malwarebytes Anti-Malware Free — one of the most trusted malware removal tools available.
The free version detects and removes the most common threats, including:
Adware — the cause of those annoying pop-ups
Browser hijackers — unwanted redirects and changed homepages
Trojans and spyware — hidden programs stealing your data
Potentially unwanted programs (PUPs) — software you never asked for
👉 Select your device below — Windows, Mac, or Android — then follow the simple steps to download Malwarebytes, scan your system, and remove any threats it finds. The whole process takes about 5 minutes.
Malwarebytes for WindowsMalwarebytes for MacMalwarebytes for Android
Run a Malware Scan with Malwarebytes for Windows
Malwarebytes is one of the most popular and trusted anti-malware tools for Windows — and it’s completely free for removing infections. It catches threats that many antivirus programs miss, including adware, browser hijackers, and trojans. Follow the steps below to scan and clean your PC in just a few minutes.
Download Malwarebytes
Click the button below to download the latest version of Malwarebytes for Windows from the official source. The free version is all you need — it will scan your computer and remove adware, browser hijackers, and other malicious software at no cost.
(The link opens in a new page where your download will start)
Install Malwarebytes
When the download finishes, open your Downloads folder and double-click the MBSetup file. If Windows shows a User Account Control pop-up, click “Yes” to allow the installation.
Follow the On-Screen Prompts to Install Malwarebytes
The setup wizard will walk you through a few quick screens:
Choose where you’re installing the program — “Personal Computer” or “Work Computer” — then click Next.
Malwarebytes will now install on your device. This usually takes under a minute.
When installation is complete, the “Welcome to Malwarebytes” screen will open automatically.
On the final screen, click Open Malwarebytes to launch the program.
Enable “Scan for Rootkits”
Before scanning, turn on rootkit detection so Malwarebytes can find even the most hidden threats. Click the Settings gear icon on the left side of the screen.
In the settings menu, find “Scan for rootkits” and click the toggle so it turns blue.
Done? Click “Dashboard” in the left pane to return to the main screen.
Start the Scan
Click the blue Scan button. Malwarebytes will automatically update its virus database and start checking your computer for malware.
Wait for the Scan to Finish
The scan checks your entire system for browser hijackers and other malicious programs, so it can take several minutes. Feel free to do something else — just check back occasionally to see the progress.
Quarantine the Detected Threats
When the scan is done, you’ll see a list of everything Malwarebytes found — malware, adware, and potentially unwanted programs. Click the “Quarantine” button to remove all of them at once.
Malwarebytes will now remove the malicious files and registry entries and move them safely into quarantine.
Restart Your Computer
Some threats can only be fully removed after a reboot. If Malwarebytes asks you to restart, click Yes. Once you’re logged back in, your PC is clean and you can continue with the next steps in this guide.
When the scan finishes, click Quarantine to remove everything Malwarebytes found. That’s it — your Windows PC is now clean of trojans, adware, and other malware, and should be back to running smoothly.
If your current antivirus allowed this malicious program on your computer, you may want to consider purchasing Malwarebytes Premium to protect against these types of threats in the future. If you are still having problems with your computer after completing these instructions, then please follow one of the steps:
Malwarebytes for Mac is a free on-demand scanner that removes the malware other security software tends to miss — adware, browser hijackers, and unwanted programs included. Cleaning an infected Mac with Malwarebytes has always been completely free, and it’s our go-to recommendation. Follow the steps below to scan and clean your Mac in just a few minutes.
Download Malwarebytes for Mac
Click the button below to download the latest version of Malwarebytes for Mac.
When the download finishes, open your Downloads folder and double-click the setup file to begin the installation.
Follow the On-Screen Prompts to Install Malwarebytes
The Malwarebytes for Mac Installer will guide you through a few quick screens. Click “Continue” and keep following the prompts until the installation completes.
When the installation is complete, Malwarebytes opens to the Welcome to Malwarebytes screen. Click “Get started“.
Select “Personal Computer” or “Work Computer”
Malwarebytes will ask what type of computer you’re installing it on. Click either Personal Computer or Work Computer, whichever applies.
Start the Scan
Click the “Scan” button. Malwarebytes will automatically update its detection database and begin checking your Mac for malware.
Wait for the Scan to Finish
Malwarebytes will scan your Mac for adware, browser hijackers, and other malicious programs. This can take a few minutes, so feel free to do something else — just check back occasionally to see the progress.
Quarantine the Detected Threats
When the scan is done, you’ll see a list of everything Malwarebytes found. Click the “Quarantine” button to remove all the threats at once.
Restart Your Mac
Malwarebytes will now remove all the malicious files it found. Some threats can only be fully removed after a reboot — if Malwarebytes asks you to restart, allow it. Once you’re logged back in, your Mac is clean.
Once the scan is done, remove every threat it detected. Your Mac is now free of adware, rogue browser extensions, and other potentially harmful software.
If your current antivirus allowed a malicious program on your computer, you might want to consider purchasing the full-featured version of Malwarebytes Anti-Malware to protect against these types of threats in the future. If you are still experiencing problems while trying to remove a malicious program from your computer, please ask for help in our Mac Malware Removal Help & Support forum.
Run a Malware Scan with Malwarebytes for Android
Malwarebytes for Android automatically detects and removes dangerous threats like malware and ransomware so you don’t have to worry about your most-used device being compromised. Aggressive detection of adware and potentially unwanted programs keeps your Android phone or tablet running smooth.
Download Malwarebytes for Android.
You can download Malwarebytes for Android by clicking the link below.
In the Google Play Store, tap “Install” to install Malwarebytes for Android on your device.
When the installation process has finished, tap “Open” to begin using Malwarebytes for Android. You can also open Malwarebytes by tapping on its icon in your phone menu or home screen.
Follow the on-screen prompts to complete the setup process
When Malwarebytes will open, you will see the Malwarebytes Setup Wizard which will guide you through a series of permissions and other setup options. This is the first of two screens that explain the difference between the Premium and Free versions. Swipe this screen to continue. Tap on “Got it” to proceed to the next step. Malwarebytes for Android will now ask for a set of permissions that are required to scan your device and protect it from malware. Tap on “Give permission” to continue. Tap on “Allow” to permit Malwarebytes to access the files on your phone.
Update database and run a scan with Malwarebytes for Android
You will now be prompted to update the Malwarebytes database and run a full system scan.
Click on “Update database” to update the Malwarebytes for Android definitions to the latest version, then click on “Run full scan” to perform a system scan.
Wait for the Malwarebytes scan to complete.
Malwarebytes will now start scanning your phone for adware and other malicious apps. This process can take a few minutes, so we suggest you do something else and periodically check on the status of the scan to see when it is finished.
Click on “Remove Selected”.
When the scan has been completed, you will be presented with a screen showing the malware infections that Malwarebytes for Android has detected. To remove the malicious apps that Malwarebytes has found, tap on the “Remove Selected” button.
Restart your phone.
Malwarebytes for Android will now remove all the malicious apps that it has found. To complete the malware removal process, Malwarebytes may ask you to restart your device.
After the scan, tap Remove Selected to delete all detected threats. Your Android phone is now clean — no more malicious apps, adware, or browser redirects.
If your current antivirus allowed a malicious app on your phone, you may want to consider purchasing the full-featured version of Malwarebytes to protect against these types of threats in the future. If you are still having problems with your phone after completing these instructions, then please follow one of the steps:
Restore your phone to factory settings by going to Settings > General management > Reset > Factory data reset.
Now that your device is clean, keep it that way. Most infections start with a malicious ad or a fake download button — so blocking them at the source is your best defense.
We recommend AdGuard, which blocks malicious ads, phishing pages, and dangerous redirects before they can reach you.
Administrators should search across mailboxes for identical subjects, attachment hashes, sender infrastructure, and viewer domains. A single report may reveal a wider delivery.
Monitor payment threads after account recovery. Criminals can use previously copied details long after their direct mailbox access has been removed.
Frequently Asked Questions
Does an MT103 attachment prove a customer paid?
No. Documents can be fabricated or describe unsettled activity. Confirm the credit in the receiving bank account and reconcile it with the correct invoice.
Why does the message omit invoice numbers and amounts?
Generic wording lets one campaign reach many organizations. It also encourages recipients to open attachments to discover information a real payer should already provide.
Can a PDF attachment steal my email password?
The PDF may lead to a counterfeit login page. Credential theft occurs when information is submitted there, although downloaded files still deserve security inspection.
What if the fake viewer displayed my exact email address?
The link can carry that address as a parameter. Prefilling a public or targeted address does not establish legitimate authentication.
Should I tell the sender that no payment arrived?
Use a verified customer contact or existing thread, not the new message. If no matching receivable exists, report the email instead.
Could a real customer’s mailbox have sent the phishing email?
Yes. Compromised accounts can distribute malicious attachments. Verify the payment separately even when the visible sender has communicated with you before.
The Bottom Line
The due invoices payment email scam disguises a credential trap as routine remittance work, using SWIFT language, PDF attachments, and a locked financial preview.
Match every payment with a real receivable and bank credit before opening unfamiliar files. No legitimate remittance requires a mailbox password on an unrelated website.
10 Rules to Avoid Online Scams
Here are 10 practical safety rules to help you avoid malware, online shopping scams, crypto scams, and other online fraud. Each tip includes a quick “if you already got hit” action.
Stop and verify before you click, log in, download, or pay.
Most scams win by creating urgency. Verify using a trusted method: type the website address yourself, use the official app, or call a known number (not the one in the message).
If you already clicked: close the page, do not enter passwords, and run a malware scan.
Keep your operating system, browser, and apps updated.
Updates patch security holes used by malware and malicious ads. Turn on automatic updates where possible.
If you saw a scary “update now” pop-up: close it and update only through your device settings or the official app store.
Use layered protection: antivirus plus an ad blocker.
Antivirus helps block malware. An ad blocker reduces scam redirects, phishing pages, and malvertising.
If your browser is acting weird: remove unknown extensions, reset the browser, then run a full scan.
Install apps, software, and extensions only from official sources.
Avoid cracked software, “keygens,” and random downloads. During installs, choose Custom/Advanced and decline bundled offers you do not recognize.
If you already installed something suspicious: uninstall it, restart, and scan again.
Treat links and attachments as untrusted by default.
Phishing often impersonates delivery services, banks, and popular brands. If it is unexpected, do not open attachments or log in through the message.
If you entered credentials: change the password immediately and enable 2FA.
Shop safely: research the store, then pay with protection.
Be cautious with brand-new stores, “closing sale” stories, and prices that make no sense. Prefer credit cards or PayPal for dispute options. Avoid wire transfers, gift cards, and crypto payments.
If you already paid: contact your card issuer or PayPal quickly to dispute the transaction.
Crypto rule: never pay a “fee” to withdraw or recover money.
Common patterns include fake profits, then “tax,” “gas,” or “verification” fees. Another is a “recovery agent” who demands upfront crypto.
If you already sent crypto: stop paying, save evidence (wallet addresses, TXIDs, chats), and report the scam to the platform used.
Secure your accounts with unique passwords and 2FA (start with email).
Use a password manager and unique passwords for every account. Enable 2FA using an authenticator app when possible.
If you suspect an account takeover: change passwords, sign out of all devices, and review recent logins and recovery settings.
Back up important files and keep one backup offline.
Backups protect you from ransomware and device failure. Keep at least one backup on an external drive that is not always connected.
If you suspect infection: do not connect backup drives until the system is clean.
If you think you are a victim: stop losses, document evidence, and escalate fast.
Move quickly. Speed matters for disputes, account recovery, and limiting damage.
Stop payments and contact: do not send more money or respond to the scammer.
Call your bank or card issuer: block transactions, replace the card if needed, and start a dispute or chargeback.
Secure your email first: change the email password, enable 2FA, and remove unfamiliar recovery options.
Secure other accounts: change passwords, enable 2FA, and log out of all sessions.
Scan your device: remove suspicious apps or extensions, then run a full malware scan.
Save evidence: screenshots, emails, order pages, tracking pages, wallet addresses, TXIDs, and chat logs.
Report it: to the payment provider, marketplace, social platform, exchange, or wallet service involved.
These rules are intentionally simple. Most online losses happen when decisions are rushed. Slow down, verify independently, and use payment methods and account controls that give you recourse.
Hello! I'm Lapain Epuran, your go-to source for detailed and honest product reviews. From tech gadgets to miracle cures, I provide insights to help you make informed choices. Join me as we discover what's truly worth your time and money.
