Fake Coding Tests Deliver OtterCookie-Aligned Malware Hidden in SVG Flag Images

North Korean threat actors linked to the Contagious Interview campaign have been observed employing steganography in SVG image files to conceal malicious payloads as part of a campaign using fake job postings and coding challenges.

“Any user who ran the project ended up with a four-stage payload aligned with OtterCookie: a browser credential and crypto wallet stealer, a file stealer, a Socket.IO-based remote access trojan (RAT), and a clipboard stealer,” Elastic Security Labs said in a report shared with The Hacker News.