LWA-2026-10734 MAL-2026-13587 ↗ confirmed malware

dolyame-ui-inputtools@35.8.1

Malicious code in dolyame-ui-inputtools (npm)

T1059.007 · JavaScriptT1105 · Ingress Tool TransferT1071.001 · Web ProtocolsT1102 · Web ServiceT1059 · Command and Scripting InterpreterT1082 · System Information Discovery

Analysis

On require, the package downloads and executes a second-stage binary. It fetches a platform-specific payload over HTTPS from attacker-controlled Cloudflare Workers endpoints (oob-worker[.]cf100-416[.]workers[.]dev, oob-worker[.]cf102-baf[.]workers[.]dev, oob-worker[.]cf99-9b3[.]workers[.]dev, oob-worker[.]cf101-adf[.]workers[.]dev) at paths /pkg/package, /pkg/package-arm64, /pkg/loader_mac, or /pkg/package.exe depending on OS/arch. If HTTPS fails it falls back to a DNS TXT chunked base64 transfer from c[.]sdk[.]dl[.]wel1[.]ru. The downloaded payload is written to /var/tmp/.cache_<hex> (or %TEMP%\dotnet_diag_<hex>.exe on Windows), made executable, and launched detached via /bin/sh -c or cmd.exe /c start /b. The package presents itself as a telemetry/analytics SDK but performs no legitimate telemetry; it is a remote code download-and-execute dropper.

analyzed by
Leitwacht
first seen
Aug 7, 2026, 10:41 AM
analyzed
Aug 7, 2026, 10:42 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.