LWA-2026-10382 MAL-2026-13148 ↗ confirmed malware

dolyame-ui-confirmation@35.3.3

Malicious code in dolyame-ui-confirmation (npm)

T1195.002 · Compromise Software Supply ChainT1059.007 · JavaScriptT1059.003 · Windows Command ShellT1105 · Ingress Tool TransferT1071.001 · Web ProtocolsT1102 · Web ServiceT1082 · System Information Discovery

Analysis

dolyame-ui-confirmation@35.3.3 is a trojanized package impersonating the Dolyame payment service's UI components. Requiring the package runs a bundled dropper (_shim.js) that fingerprints the OS/architecture and downloads a second-stage binary over HTTPS from three Cloudflare Workers endpoints (oob-worker[.]cf100-416[.]workers[.]dev, oob-worker[.]cf102-baf[.]workers[.]dev, oob-worker[.]cf101-adf[.]workers[.]dev, path /pkg/package), with a DNS-TXT fallback channel on the wel1[.]ru domain (c[.]sdk[.]dl[.]wel1[.]ru). The downloaded payload is written to /var/tmp/.cache_<hex> (or dotnet_diag_<hex>.exe under the Windows temp dir) and executed detached via cmd.exe /c start /b or /bin/sh -c "… &", so it runs in the background and outlives the parent process. The package ships no actual UI code; lib/telemetry.js is a decoy analytics facade.

analyzed by
Leitwacht
first seen
Aug 5, 2026, 02:07 PM
analyzed
Aug 5, 2026, 03:56 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.