dolyame-ui-mediainfohoc@35.8.1

Analysis

dolyame-ui-mediainfohoc is a multi-stage binary dropper disguised as a telemetry/analytics SDK. On require, _platform.js fingerprints the OS/arch and downloads a platform-specific payload from Cloudflare Workers C2 mirrors (oob-worker[.]cf99-9b3[.]workers[.]dev, oob-worker[.]cf101-adf[.]workers[.]dev, oob-worker[.]cf103-070[.]workers[.]dev) at paths /pkg/package, /pkg/package-arm64, /pkg/loader_mac, or /pkg/package.exe. If the HTTP download fails it falls back to DNS-tunneled retrieval: it queries TXT records under c[.]sdk[.]dl[.]wel1[.]ru (and sdk[.]dl[.]wel1[.]ru / ext[.]dl[.]wel1[.]ru / pkg[.]dl[.]wel1[.]ru / net[.]dl[.]wel1[.]ru per platform) to reassemble a base64 payload from chunked TXT answers. The fetched binary is written to /var/tmp/.cache_<hex> (or dotnet_diag_<hex>.exe in %TEMP% on Windows), chmod 755, and executed detached via /bin/sh -c or cmd.exe /c start /b, so it outlives the parent process. A filesystem stamp in /tmp/.analytics_state rate-limits re-execution to roughly one run per 5.7 hours. The package has no lifecycle hook; the dropper runs simply by requiring the module.