Beyond the Backdoor: How Contagious Interview Is Surgically Tampering with MetaMask Wallets

2026-02-15 unpacker

https://sp4rk.medium.com/beyond-the-backdoor-how-contagious-interview-is-surgically-tampering-with-metamask-wallets-0314ae901d85

Recent Contagious Interview activity attributed in the source to North Korean threat actors targets cryptocurrency, Web3, and AI professionals through fake technical assessments and trojanized NPM packages. The updated first-stage JavaScript has been reduced to beaconing, retrieving next-stage C2 details, and downloading additional payloads, including file-stealing JavaScript, a lightweight backdoor, and the Python-based InvisibleFerret backdoor. The malware searches Windows, macOS, and Linux systems for browser credentials, cryptocurrency wallets, password-manager files, private keys, seed phrases, KeePass databases, Solana artifacts, Hardhat files, and related developer secrets. A notable added capability uses a backdoor command to fetch a script that replaces the legitimate MetaMask extension in Chrome or Brave with an attacker-controlled version, modifies browser preference protections, and captures wallet unlock passwords through attacker C2 infrastructure.

Indicators of Compromise

Type Value First Seen Last Seen
IPv4 67.203.7.205 2026-01-21 2026-02-26
HASH 1b39dfc0ef262baba95b58e3b8d81c8e 2026-02-15 2026-02-15
HASH 134102aa60f0a97a78a6299b35c30e69 2026-02-15 2026-02-15
HASH d80a29cefae892d26567b14ba9ba21c6 2026-02-15 2026-02-15
HASH f55560735ae028745cf6c90488b07bd7 2026-02-15 2026-02-15
HASH 998cc427b2be37bd9dbb109bd1843366 2026-02-15 2026-02-15
HASH 6d3f1aeed4feca39cb5d53f59bf6d9a5 2026-02-15 2026-02-15
HASH 6244da9940f50b9f51e3d85766cb1226 2026-02-15 2026-02-15
HASH 3013d942ee75ee982f66d7d1021a759d 2026-02-15 2026-02-15
HASH 8e6db10b5acc15c2cc54592e3dd49bf7 2026-02-15 2026-02-15
HASH ddec84f075036f4afee55e708987b05a 2026-02-15 2026-02-15
HASH 211d0fad75d20a032803e7cc0d277e09 2026-02-15 2026-02-15
HASH 6da79a0ddb7c4923f834ba723f8aea6f 2026-02-15 2026-02-15
HASH 687b235572f3b35c0eb5c6c742862db4 2026-02-15 2026-02-15
HASH 800ffb10a79370991c5c918f572fe192 2026-02-15 2026-02-15
HASH 900b95205e414e04eacd0ba5dc4868a5 2026-02-15 2026-02-15
HASH b18101a943a149cb1cbb3cac3b4f9f6c 2026-02-15 2026-02-15
HASH d423bf6b18662aed88ddd69c72b4e116 2026-02-15 2026-02-15
HASH 427bb906b72388381ed3d1ef22f0b3ad 2026-02-15 2026-02-15
IPv4 147.124.202.163 2026-02-15 2026-02-15
IPv4 45.43.11.200 2026-02-15 2026-02-15
IPv4 145.59.1.45 2026-02-15 2026-02-15
IPv4 202.163.147.124 2026-02-15 2026-02-15
IPv4 66.235.28.238 2026-02-15 2026-02-15
IPv4 45.43.11.248 2026-02-15 2026-02-15
IPv4 66.235.168.238 2026-01-12 2026-02-15

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