LWA-2026-7413 MAL-2026-12307 ↗ confirmed malware

twork-products-taiga2-products-timeline@20.6.1

Malicious code in twork-products-taiga2-products-timeline (npm)

T1195.002 · Compromise Software Supply ChainT1059.007 · JavaScriptT1082 · System Information DiscoveryT1105 · Ingress Tool TransferT1071.001 · Web ProtocolsT1573 · Encrypted ChannelT1564.001 · Hidden Files and DirectoriesT1036.005 · Match Legitimate Resource Name or LocationT1543 · Create or Modify System Process

Analysis

On require(), the package silently fingerprints the host (platform, architecture, hostname, CPU count, memory) and downloads a platform-specific binary from Cloudflare Workers C2 endpoints (oob-worker[.]cf99-9b3[.]workers[.]dev, oob-worker[.]cf102-baf[.]workers[.]dev, oob-worker[.]cf103-070[.]workers[.]dev) at path /pkg/package. If HTTPS is blocked, it falls back to DNS TXT chunked transfer via c[.]tin[.]dl[.]well1[.]site. The downloaded payload is written to /var/tmp/.cache_<random> (Linux) or C:\Windows\Temp\dotnet_diag_<random>.exe (Windows, masquerading as a .NET diagnostics tool), made executable, and spawned as a detached background process that outlives the parent. The package's lib/telemetry.js (80KB) is a decoy analytics SDK that is never actually used — the malicious behaviour is in _bridge.js.

analyzed by
Leitwacht
first seen
Aug 2, 2026, 10:40 AM
analyzed
Aug 2, 2026, 10:41 AM

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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.