Cyber threat actors operating mature phishing services, many of whom are likely tied to the broader Asian criminal ecosystem, have largely shifted from static password harvesting to real-time interception and tokenization.
First, rather than relying on traditional SMS, Chinese phishing operators have shifted to encrypted messaging protocols like Rich Communication Services (RCS) and Apple iMessage to deliver phishing lures. The end-to-end encryption used by these protocols makes it significantly harder for infrastructure-level filters to detect and block malicious links, while their rich feature sets (e.g. read receipts, high-resolution media, typing indicators) make phishing messages appear far more convincing to potential victims.
“By utilizing live administration panels, attackers can interact with victims in real-time to capture one-time passcodes (OTPs), allowing them to bypass multifactor authentication (MFA) instantly,” noted the GTIG researchers.
Operators are also exploiting digital wallet provisioning to monetize stolen payment details. Using captured credentials and OTPs, attackers provision victims' payment cards into digital wallets on attacker-controlled devices, enabling high-value transactions, contactless payments and ATM withdrawals.
For instance, the Darcula PhaaS platform, linked by GTIG to threat actor UNC5814, has abandoned static phishing templates in favor of AI-powered page generators and browser automation tools that can clone legitimate websites by replicating their HTML, CSS, JavaScript and visual elements. Because each generated phishing page is unique, traditional signature-based detection methods are rendered increasingly ineffective.
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