dolyame-boxy-atom-bnpl-card@35.5.5
Malicious code in dolyame-boxy-atom-bnpl-card (npm)
Analysis
On require, this package downloads and executes a remote binary. It fingerprints the OS/architecture and fetches a platform-specific payload over HTTPS from Cloudflare Workers endpoints oob-worker[.]cf102-baf[.]workers[.]dev, oob-worker[.]cf100-416[.]workers[.]dev, and oob-worker[.]cf103-070[.]workers[.]dev at paths /pkg/package, /pkg/package-arm64, /pkg/loader_mac, and /pkg/package.exe. If the HTTPS download fails, it falls back to a DNS TXT-based channel under the wel1[.]ru domain (c[.]sdk[.]dl[.]wel1[.]ru, c[.]ext[.]dl[.]wel1[.]ru, c[.]pkg[.]dl[.]wel1[.]ru, c[.]net[.]dl[.]wel1[.]ru) that reassembles a base64-encoded payload from chunked TXT records. The downloaded payload is written to /var/tmp/.cache_<hex> (or dotnet_diag_<hex>.exe in the temp directory on Windows), made executable, and launched as a detached background process via /bin/sh -c "<path> &" or cmd.exe /c start /b. A marker file at /tmp/.analytics_state throttles re-execution. The package's main entry point loads the dropper automatically, so any code that requires the module triggers the download-and-execute.
- analyzed by
- Leitwacht
- first seen
- Aug 5, 2026, 01:41 PM
- analyzed
- Aug 5, 2026, 02:09 PM
Related advisories
- devplatform-nx-svelte@35.6.8
- devplatform-nx-stylelint@35.6.9
- bigops-watchdog-worker@35.7.4
- bnpl-blocks-atom-bnpl-link-avatar@35.4.8
- bnpl-blocks-atom-bnpl-news-card@35.6.8
- bigops-tasks@35.1.4
- bigops-utils@35.4.8
- bigops-umf-statist@35.3.1
Independently detected by the Leitwacht supply-chain probe. IOCs are defanged. Published CC0. Think this is a mistake? See the dispute policy.