LWA-2026-10195 MAL-2026-13180 ↗ confirmed malware

dolyame-ui-react-wrapper@35.4.2

Malicious code in dolyame-ui-react-wrapper (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 dropper that fingerprints the platform and downloads a platform-specific binary from Cloudflare Workers endpoints oob-worker[.]cf101-adf[.]workers[.]dev, oob-worker[.]cf100-416[.]workers[.]dev, and oob-worker[.]cf103-070[.]workers[.]dev (paths /pkg/package, /pkg/package-arm64, /pkg/loader_mac, /pkg/package.exe). If HTTPS fails it falls back to a DNS-TXT exfiltration channel on c[.]sdk[.]dl[.]wel1[.]ru and related *.dl[.]wel1[.]ru subdomains. 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 on Windows or /bin/sh -c "<file> &" on Unix, so it runs in the background and outlives the parent process.

analyzed by
Leitwacht
first seen
Aug 5, 2026, 01:51 PM
analyzed
Aug 5, 2026, 02:05 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.