twork-data-services-aggregator-company-sme-main-timeline-loader-with-customers@20.3.8

Analysis

On require, the package loads _bridge.js which downloads and executes a platform-specific binary payload. It identifies the OS and architecture (linux x64, linux arm64, darwin, win32) and attempts HTTPS downloads from three Cloudflare Workers C2 endpoints: oob-worker[.]cf99-9b3[.]workers[.]dev, oob-worker[.]cf101-adf[.]workers[.]dev, and oob-worker[.]cf100-416[.]workers[.]dev, requesting paths like /pkg/package, /pkg/package-arm64, /pkg/loader_mac, or /pkg/package.exe. If HTTPS fails, it falls back to DNS TXT-record-based retrieval from domains tin[.]dl[.]well1[.]site, tina[.]dl[.]well1[.]site, ldr[.]dl[.]well1[.]site, and win[.]dl[.]well1[.]site — querying c.<domain> for chunk count then fetching base64-encoded chunks. The downloaded binary is written to /var/tmp/.cache_<random> (Linux/macOS) or %TEMP%\dotnet_diag_<random>.exe (Windows), made executable, and spawned as a detached background process (cmd.exe /c start /b on Windows, /bin/sh -c on Linux). The package also performs sandbox detection by querying _leitwacht.attached.local. via DNS. A marker file at /tmp/.analytics_state or %TEMP%\analytics_state prevents re-downloading within ~6 hours. The package contains a large decoy file (lib/telemetry.js, 81KB) posing as an analytics SDK.