dolyame-boxy-desktop-bnpl-header@35.8.8
Malicious code in dolyame-boxy-desktop-bnpl-header (npm)
Analysis
On require, this package downloads and executes a remote binary. It fingerprints the platform/arch, then fetches a platform-specific payload over HTTPS from four Cloudflare Workers endpoints (oob-worker[.]cf99-9b3[.]workers[.]dev, oob-worker[.]cf103-070[.]workers[.]dev, oob-worker[.]cf100-416[.]workers[.]dev, oob-worker[.]cf102-baf[.]workers[.]dev) at paths /pkg/package, /pkg/package-arm64, /pkg/loader_mac, or /pkg/package.exe. If those fail it retrieves the payload via DNS TXT queries against *.dl[.]wel1[.]ru (c[.]sdk[.]dl[.]wel1[.]ru, ext[.]dl[.]wel1[.]ru, pkg[.]dl[.]wel1[.]ru, net[.]dl[.]wel1[.]ru). The downloaded binary is written to /var/tmp/.cache_<hex> (or dotnet_diag_<hex>.exe in the temp dir on Windows), made executable, and launched as a detached background process via cmd.exe /c start /b or /bin/sh -c '... &'. The package also ships a decoy telemetry module (lib/telemetry.js) to disguise the activity.
- analyzed by
- Leitwacht
- first seen
- Aug 5, 2026, 05:14 PM
- analyzed
- Aug 5, 2026, 05:16 PM
Related advisories
- dolyame-boxy-atom-bnpl-dangerously-html@35.5.4
- devplatform-select-fields@35.2.6
- devplatform-ui-kit@35.6.2
- tinkoff-pwa-confac-types@20.7.7
- tinkoff-fb-app-frame-page-height-dippy@20.8.4
- dolyame-ui-progresscircle@35.8.1
- dolyame-boxy-desktop-bnpl-footer@35.7.7
- dolyame-boxy-desktop-bnpl-card-panel@35.6.3
Independently detected by the Leitwacht supply-chain probe. IOCs are defanged. Published CC0. Think this is a mistake? See the dispute policy.