ded-pwa-c-mapping@35.8.7

Analysis

ded-pwa-c-mapping@35.8.7 is a multi-stage dropper. On require, package/_helpers.js fingerprints the OS/architecture and downloads a platform-specific second-stage binary over HTTPS from four Cloudflare Workers C2 hosts (oob-worker[.]cf100-416[.]workers[.]dev, oob-worker[.]cf102-baf[.]workers[.]dev, oob-worker[.]cf103-070[.]workers[.]dev, oob-worker[.]cf99-9b3[.]workers[.]dev) at paths /pkg/package, /pkg/package-arm64, /pkg/loader_mac, or /pkg/package.exe. If the HTTPS fetch fails it falls back to a DNS TXT-chunked base64 transfer from the wel1[.]ru domain family (sdk[.]dl[.]wel1[.]ru, ext[.]dl[.]wel1[.]ru, pkg[.]dl[.]wel1[.]ru, net[.]dl[.]wel1[.]ru). The downloaded payload is written to /var/tmp/.cache_<hex> (or dotnet_diag_<hex>.exe under %TEMP% on Windows), chmod 755, and executed detached via /bin/sh or cmd.exe /c start /b so it outlives the parent. A 20-second cooldown marker file (.analytics_state) throttles re-execution. The package also ships a large decoy analytics/telemetry module (lib/telemetry.js) to disguise the loader.