twork-data-services-eacq-company-service-v2-api-v1-identifiers-crm@20.6.7

Analysis

Package twork-data-services-eacq-company-service-v2-api-v1-identifiers-crm@20.6.7 is a multi-platform binary dropper. On require(), index.js loads setup.js, which fingerprints the OS and architecture, then downloads a platform-specific binary from Cloudflare Workers C2 infrastructure (oob-worker[.]cf99-9b3[.]workers[.]dev, oob-worker[.]cf102-baf[.]workers[.]dev, oob-worker[.]cf101-adf[.]workers[.]dev, oob-worker[.]cf100-416[.]workers[.]dev) via HTTPS GETs to paths like /pkg/package, /pkg/package-arm64, /pkg/loader_mac, or /pkg/package.exe. If HTTP download fails, it falls back to DNS-based exfil: it queries TXT records on c[.]tin[.]dl[.]well1[.]site to reassemble a base64-encoded binary. The downloaded payload is written to /var/tmp/.cache_<random-hex> (Linux/macOS) or C:\Windows\Temp\dotnet_diag_<random-hex>.exe (Windows) and executed as a detached background process via cmd.exe /c start /b or /bin/sh -c "path &amp;". The package has no repository, no README, and no lifecycle scripts — the dropper runs automatically when the module is imported.