NORTH KOREAN HACKERS COMBINE BEAVERTAIL AND OTTERCOOKIE INTO ADVANCED JS MALWARE

Summary from the TLDR InfoSec newsletter

North Korean threat actors behind the Contagious Interview campaign have merged functionality from their BeaverTail and OtterCookie malware families, creating a more sophisticated JavaScript-based information stealer with enhanced keylogging, screenshot capture, and cryptocurrency wallet theft capabilities. The evolved malware uses legitimate npm packages and supply chain compromises to distribute through fake job interview processes, with new variants like OtterCandy combining remote access trojan functionality and utilizing blockchain-based command-and-control infrastructure via Ethereum and BNB Smart Chain. Security professionals should monitor for suspicious npm packages, implement stronger validation for job applicant technical assessments, and watch for the specific malware indicators, including the "node-nvm-ssh" package and associated file patterns used in these supply chain attacks.