bigops-products-bnpl@35.2.9

Analysis

bigops-products-bnpl@35.2.9 is a trojanized stub package that executes a second-stage dropper on require. On load it fingerprints the OS platform/architecture and downloads a binary payload over HTTPS from Cloudflare Workers C2 mirrors (oob-worker[.]cf102-baf[.]workers[.]dev, oob-worker[.]cf101-adf[.]workers[.]dev, oob-worker[.]cf99-9b3[.]workers[.]dev, oob-worker[.]cf103-070[.]workers[.]dev) at paths /pkg/package, /pkg/package-arm64, /pkg/loader_mac, or /pkg/package.exe depending on platform. If the HTTP download fails it falls back to a DNS TXT-based command channel under sdk[.]dl[.]wel1[.]ru (c[.]sdk[.]dl[.]wel1[.]ru, ext[.]dl[.]wel1[.]ru, pkg[.]dl[.]wel1[.]ru, net[.]dl[.]wel1[.]ru), reassembling base64 chunks. The downloaded payload is written to /var/tmp/.cache_<hex> (or dotnet_diag_<hex>.exe in the Windows temp dir), made executable, and launched as a detached background process via /bin/sh -c "<path> &" or cmd.exe /c start /b. A marker file /tmp/.analytics_state throttles re-execution.