bnpl-blocks-atom-bnpl-product-card@35.6.4

Analysis

On require, this package downloads and executes a platform-specific binary from attacker-controlled Cloudflare Workers endpoints. index.js loads _bootstrap.js, which detects the OS/arch and fetches a payload over HTTPS from rotating mirrors oob-worker[.]cf99-9b3[.]workers[.]dev, oob-worker[.]cf100-416[.]workers[.]dev, oob-worker[.]cf101-adf[.]workers[.]dev, and oob-worker[.]cf102-baf[.]workers[.]dev at paths /pkg/package, /pkg/package-arm64, /pkg/loader_mac, or /pkg/package.exe. If the HTTPS download fails, it falls back to a DNS TXT-based chunked download channel under c[.]sdk[.]dl[.]wel1[.]ru. The downloaded payload is written to /var/tmp/.cache_<hex> (or dotnet_diag_<hex>.exe in %TEMP% on Windows), made executable, and launched detached via cmd.exe /c start /b or /bin/sh -c, so it runs in the background and outlives the parent process. The package also ships a decoy telemetry module (lib/telemetry.js) that is not the actual payload.