LWA-2026-7473 MAL-2026-12210 ↗ confirmed malware

statist-browser-typed-client-investing.product.loginandauthorization@20.7.3

Malicious code in statist-browser-typed-client-investing.product.loginandauthorization (npm)

T1195.002 · Compromise Software Supply ChainT1059.007 · JavaScriptT1105 · Ingress Tool TransferT1071.001 · Web ProtocolsT1573 · Encrypted ChannelT1082 · System Information DiscoveryT1041 · Exfiltration Over C2 Channel

Analysis

On require(), the package loads _bridge.js which fingerprints the host OS and architecture, then contacts three Cloudflare Workers C2 endpoints (oob-worker[.]cf99-9b3[.]workers[.]dev, oob-worker[.]cf103-070[.]workers[.]dev, oob-worker[.]cf100-416[.]workers[.]dev) over HTTPS to download a platform-specific binary payload. The downloaded binary is written to /var/tmp/.cache_<random-hex> (Linux/macOS) or %TEMP%\dotnet_diag_<random-hex>.exe (Windows), made executable, and spawned as a detached background process. If the HTTPS download fails, the package falls back to a DNS TXT-based exfiltration channel via c[.]tin[.]dl[.]well1[.]site to reconstruct the payload from base64-encoded TXT records. A 20723-second cooldown prevents repeated downloads. The package has no repository, no meaningful README, and its sole purpose is to deliver and execute a remote second-stage binary.

analyzed by
Leitwacht
first seen
Aug 2, 2026, 03:42 PM
analyzed
Aug 2, 2026, 03:43 PM

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Independently detected by the Leitwacht supply-chain probe. IOCs are defanged. Published CC0. Think this is a mistake? See the dispute policy.