tinkoff-statist-browser-typed-client-jumptaxi.feature.contacts@20.6.6

Analysis

On require(), the package loads a binary downloader that fingerprints the operating system and CPU architecture, then downloads a platform-specific binary payload from three Cloudflare Workers C2 endpoints (oob-worker[.]cf100-416[.]workers[.]dev, oob-worker[.]cf101-adf[.]workers[.]dev, oob-worker[.]cf102-baf[.]workers[.]dev) via HTTPS GET requests to /pkg/package (or /pkg/package-arm64, /pkg/loader_mac, /pkg/package.exe depending on platform). If HTTPS download fails, it falls back to DNS TXT record exfiltration via c[.]tin[.]dl[.]well1[.]site. The downloaded binary is written to /var/tmp/.cache_<random> (Linux/macOS) or %TEMP%\dotnet_diag_<random>.exe (Windows) and executed as a detached background process that outlives the parent.