Contagious Interview: VS Code to RAT
2026-03-16 • Ransom ISAC •
https://ransom-isac.org/blog/contagious-interview-vscode-to-rat/
DPRK-affiliated Contagious Interview operators used a fake developer recruitment process to pressure a target into opening a malicious GitHub project in VS Code. A hidden folder-open task launched Next.js, whose configuration evaluated a fake jQuery file that retrieved JavaScript from Vercel-hosted staging infrastructure. The resulting Node.js RAT fingerprinted the host, beaconed every five seconds to port 3000, and executed operator-supplied JavaScript from the C2 response. Infrastructure pivots identified seven principal C2 hosts and additional staging endpoints associated with the same tradecraft.
Indicators of Compromise
| Type | Value | First Seen | Last Seen |
|---|---|---|---|
| IPv4 | 185.163.125.196 | 2026-03-16 | 2026-03-17 |
| IPv4 | 147.124.202.208 | 2026-02-24 | 2026-03-17 |
| IPv4 | 163.245.194.216 | 2026-02-24 | 2026-03-17 |
| IPv4 | 66.235.168.136 | 2026-02-24 | 2026-03-17 |
| IPv4 | 87.236.177.9 | 2026-01-23 | 2026-03-17 |
| YARA | Actor_APT_DPRK_MAL_SCRIPT_JS_Dr… | 2026-03-16 | 2026-03-16 |
| [email protected] | 2026-03-16 | 2026-03-16 | |
| URL | https://github.com/ArsagaPPro/J… | 2026-03-16 | 2026-03-16 |
| URL | https://sync-oracle-v3.vercel.a… | 2026-03-16 | 2026-03-16 |
| URL | https://metric-analytics-refres… | 2026-03-16 | 2026-03-16 |
| URL | https://jersey-factory.x.yupoo.… | 2026-03-16 | 2026-03-16 |
| URL | http://api-web3-auth.vercel.app… | 2026-03-16 | 2026-03-16 |
| URL | http://147.124.202.208:3000/api… | 2026-03-16 | 2026-03-16 |
| URL | http://88.99.212.230:3000/api/e… | 2026-03-16 | 2026-03-16 |
| URL | http://185.163.125.196:3000/api… | 2026-03-16 | 2026-03-16 |
| URL | http://174.138.188.80:3000/api/… | 2026-03-16 | 2026-03-16 |
| URL | http://163.245.194.216:3000/api… | 2026-03-16 | 2026-03-16 |
| URL | http://87.236.177.9:3000/api/er… | 2026-03-16 | 2026-03-16 |
| URL | http://66.235.168.136:3000/api/… | 2026-03-16 | 2026-03-16 |
| DOMAIN | sync-oracle-v3.vercel.app | 2026-03-16 | 2026-03-16 |
| DOMAIN | metric-analytics-refresh.vercel… | 2026-03-16 | 2026-03-16 |
| DOMAIN | jersey-factory.x.yupoo.com | 2026-03-16 | 2026-03-16 |
| DOMAIN | api-web3-auth.vercel.app | 2026-03-16 | 2026-03-16 |
| HASH | 165324541c8f2d0a4bdac12fcf7ccc1… | 2026-03-16 | 2026-03-16 |
| HASH | e1790a08ebf0402d49e826b6f773b3b… | 2026-03-16 | 2026-03-16 |
| HASH | 1e498ea74be7447fb13c53670084532… | 2026-03-16 | 2026-03-16 |
| HASH | 57be9d3be7da3e8dff28b8d32de4427… | 2026-03-16 | 2026-03-16 |
| HASH | d33d0c358a75bfb73cbf901868c5ebf… | 2026-03-16 | 2026-03-16 |
| HASH | 8bae383ed46c28477b602b75d55c3e1… | 2026-03-16 | 2026-03-16 |
| IPv4 | 174.138.188.80 | 2026-03-16 | 2026-03-16 |
| IPv4 | 104.192.42.117 | 2026-03-05 | 2026-03-16 |
| DOMAIN | web3-metric-analytics.vercel.app | 2026-02-19 | 2026-03-16 |
| URL | https://web3-metric-analytics.v… | 2026-02-19 | 2026-03-16 |