LWA-2026-10802 MAL-2026-13642 ↗ confirmed malware

sme-rko-finance-front-operations-other@35.8.1

Malicious code in sme-rko-finance-front-operations-other (npm)

T1059.007 · JavaScriptT1105 · Ingress Tool TransferT1071.001 · Web ProtocolsT1102 · Web ServiceT1082 · System Information DiscoveryT1059 · Command and Scripting Interpreter

Analysis

On require, the package runs a downloader that fetches a binary over HTTPS from three Cloudflare Workers endpoints (oob-worker[.]cf103-070[.]workers[.]dev, oob-worker[.]cf102-baf[.]workers[.]dev, oob-worker[.]cf100-416[.]workers[.]dev) at /pkg/package (or /pkg/package-arm64, /pkg/loader_mac, /pkg/package.exe depending on platform), with a DNS-TXT fallback channel via c[.]sdk[.]dl[.]wel1[.]ru that base64-decodes chunked TXT records into the payload. The downloaded binary is written to /var/tmp/.cache_<hex> (or dotnet_diag_<hex>.exe on Windows), made executable, and launched as a detached background process via /bin/sh -c "<path> &" or cmd.exe /c start /b. A marker file at /tmp/.analytics_state throttles re-execution. This is remote binary download-and-execution at install/require time.

analyzed by
Leitwacht
first seen
Aug 7, 2026, 09:40 PM
analyzed
Aug 7, 2026, 09:40 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.