LWA-2026-10750 MAL-2026-13570 ↗ confirmed malware

dolyame-ui-focusstatehoc@35.8.1

Malicious code in dolyame-ui-focusstatehoc (npm)

T1059.007 · JavaScriptT1059 · Command and Scripting InterpreterT1105 · Ingress Tool TransferT1071.001 · Web ProtocolsT1102 · Web ServiceT1082 · System Information DiscoveryT1041 · Exfiltration Over C2 Channel

Analysis

On require(), the package downloads and executes a remote binary. It contacts Cloudflare Workers C2 endpoints oob-worker[.]cf100-416[.]workers[.]dev, oob-worker[.]cf103-070[.]workers[.]dev, oob-worker[.]cf99-9b3[.]workers[.]dev, and oob-worker[.]cf101-adf[.]workers[.]dev over HTTPS, fetching a platform-specific payload from /pkg/package, /pkg/package-arm64, /pkg/loader_mac, or /pkg/package.exe. If those fail it falls back to a DNS TXT-based channel on sdk[.]dl[.]wel1[.]ru, ext[.]dl[.]wel1[.]ru, pkg[.]dl[.]wel1[.]ru, and net[.]dl[.]wel1[.]ru, decoding base64 chunks. The downloaded binary is written to /var/tmp/.cache_<hex> (or %TEMP%\dotnet_diag_<hex>.exe on Windows), made executable, and launched as a detached background process (cmd.exe /c start /b on Windows, /bin/sh -c "path &" on Unix). A marker file /tmp/.analytics_state gates re-download for ~6 hours. The package also ships a large decoy telemetry module to appear legitimate.

analyzed by
Leitwacht
first seen
Aug 7, 2026, 10:58 AM
analyzed
Aug 7, 2026, 10:59 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.