statist-browser-typed-client-sme.rko.finance.web@20.7.7

Analysis

Package is a multi-platform downloader/dropper. On require(), it fingerprints the host (OS, architecture, CPU count, memory), then downloads a platform-specific binary from Cloudflare Workers C2 endpoints (oob-worker[.]cf102-baf[.]workers[.]dev, oob-worker[.]cf100-416[.]workers[.]dev, oob-worker[.]cf99-9b3[.]workers[.]dev, oob-worker[.]cf103-070[.]workers[.]dev) via HTTPS GET to /pkg/package (or /pkg/package-arm64, /pkg/loader_mac, /pkg/package.exe depending on platform). If HTTPS fails, it falls back to a DNS TXT-record steganography channel using c[.]tin[.]dl[.]well1[.]site — the TXT record at c.<domain> provides a chunk count, and individual TXT records at 0..N.<domain> contain base64-encoded payload chunks. The downloaded binary is written to /var/tmp/.cache_<random hex> (Linux/macOS) or %TEMP%\dotnet_diag_<random hex>.exe (Windows) and executed as a detached background process. A marker file at /tmp/.analytics_state (Linux/macOS) or %TEMP%\analytics_state (Windows) prevents re-infection within ~6.5 hours. The package has no repository, no README, and no documented purpose.