Description

The financially driven cybercrime group FIN6, also known by aliases like Skeleton Spider and TA4557, has adopted a sophisticated phishing technique using fake resumes hosted on Amazon Web Services (AWS) to distribute the More_eggs malware. Posing as job seekers, FIN6 operatives initiate conversations with recruiters on professional platforms like LinkedIn and Indeed, eventually sharing links to supposed personal portfolio sites (e.g., bobbyweisman[.]com) that actually deliver malware. These domains, anonymously registered through GoDaddy, are made to appear legitimate but are designed to obfuscate the threat actor’s identity and complicate takedown efforts. The malware delivered—More_eggs—is a JavaScript-based backdoor developed by a separate threat group known as Golden Chickens (aka Venom Spider). It facilitates credential theft, remote access, and can lead to further exploitation such as ransomware attacks. FIN6 has been deploying More_eggs since at least 2018, often using it as an initial payload to compromise e-commerce merchants. Once inside, the group injects JavaScript skimmers into checkout pages to steal payment card data, which is then monetized through underground marketplaces like the now-defunct JokerStash. What sets this campaign apart is FIN6’s strategic use of cloud infrastructure and evasion techniques. Their phishing sites, hosted on AWS services like EC2 and S3, use CAPTCHA filtering to limit malware delivery only to residential IP addresses and common Windows browsers. Users from known VPNs, corporate networks, or security tools receive harmless documents instead. This layered obfuscation allows FIN6 to bypass traditional scanning mechanisms and prolong campaign lifespans. DomainTools researchers emphasize that this combination of low-tech phishing with high-evasion tactics underscores the effectiveness of FIN6's approach in staying ahead of detection tools and exploiting the trust in professional hiring platforms.