VDB
GCVE-110-OSM-2026-4738
GCVE-110-OSM-2026-4738
Advisory PublishedCVSS 9.6/10
APT malware detected: chai-max. Associated with threat actor(s): DPRK/Lazarus. Behaviors: data exfiltration, code execution, obfuscated code, install-time execution.
Entrypoint: bin/kalamasha-tool.js (bin: bin/kalamasha-tool.js)
Payload: main.js
Secondary files: bin/kalamasha-tool.js
Key findings:
- Download Execute Delete Pattern in bin/build/uia_extract/base_library.zip: "EXEC�S_IRWXU�S_IRUSR�S_IWUSR�S_IXUSR�S_IRWXG�S_IRGRP�S_IWGRP�S_IXGRP�S_..."
- Chai-Max Browser Data Theft in bin/chrome_cookies.ps1: "BraveSoftware\Brave-Browser\User Data"
if (Test-Path $bravePath) {
$..."
- Stealth Background Process Spawning in bin/kalamasha-tool.js: "spawn(process.execPath, [__filename, '--background'], {
detached: t..."
- Download Execute Delete Pattern in bin/kalamasha-tool.js: "spawn. Aborting.`);
try {
if (fs.existsSync(killFileShared..."
- Shell Command Execution in bin/kalamasha-tool.js: "require('child_process')"
IOCs:
- ipv4: 6.0.0.0
- ipv6: 6::, 5::, 1::, 2::, E:: (+2 more)
- urls: http://schemas.micros
- domains: oft.com, 8.ET, FL.tJ, 6.fm, door.Fr (+8 more)
- emails: mal@lemburg.com, brian@sweetapp.com, sjoerd@acm.org, mhammond@skippinet.com.au, mark.russell@zen.co.uk (+1 more)
- payloadFileHash: 5289eb025e9b6f593e7dfe13224c135d4e939f5bf346fe13640eb106f0437da3
Weaknesses (CWE)
CWE-506Embedded Malicious Code
Risk Scores
CVSS 3.1
9.6/10
Critical · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions | Platforms |
|---|---|---|---|
| unknown | zxmzmz | all (affected) | — |
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