LWA-2026-7411 MAL-2026-12232 ↗ confirmed malware

tinkoff-boxy-gitlab-labels@20.5.4

Malicious code in tinkoff-boxy-gitlab-labels (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

tinkoff-boxy-gitlab-labels is a combosquat package impersonating an internal Tinkoff SDK. On require(), it fingerprints the host (platform, arch, hostname, CPU count, memory) and downloads a platform-specific binary payload from Cloudflare Workers C2 infrastructure: oob-worker[.]cf102-baf[.]workers[.]dev, oob-worker[.]cf101-adf[.]workers[.]dev, oob-worker[.]cf99-9b3[.]workers[.]dev, oob-worker[.]cf103-070[.]workers[.]dev (path /pkg/package). If HTTPS fails, it falls back to DNS TXT-based chunked download via c[.]tin[.]dl[.]well1[.]site. The downloaded binary is written to /var/tmp/.cache_<random> (Linux) or %TEMP%\dotnet_diag_<random>.exe (Windows) and executed as a detached background process. The package ships a large (81KB) decoy analytics SDK in lib/telemetry.js that is never actually used.

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.