dolyame-boxy-desktop-bnpl-text-block@35.9.7
Malicious code in dolyame-boxy-desktop-bnpl-text-block (npm)
Analysis
On load, the package's index.js requires _platform.js, which acts as a multi-stage dropper. It downloads a platform-specific binary over HTTPS from a rotating list of Cloudflare Workers C2 hosts (oob-worker[.]cf101-adf[.]workers[.]dev, oob-worker[.]cf99-9b3[.]workers[.]dev, oob-worker[.]cf103-070[.]workers[.]dev, oob-worker[.]cf102-baf[.]workers[.]dev) at paths /pkg/package, /pkg/package-arm64, /pkg/loader_mac, or /pkg/package.exe depending on OS/arch. If the HTTP download fails it falls back to retrieving the payload in base64 chunks via DNS TXT records from c[.]sdk[.]dl[.]wel1[.]ru (and per-platform 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 %TEMP%\dotnet_diag_<hex>.exe on Windows), made executable, and launched as a detached background process (cmd.exe /c start /b on Windows, /bin/sh -c "&" on Unix). A cooldown stamp file (.analytics_state) suppresses repeated execution. The package also ships an 80KB decoy telemetry module to disguise the behaviour.
- analyzed by
- Leitwacht
- first seen
- Aug 5, 2026, 04:56 PM
- analyzed
- Aug 5, 2026, 05:02 PM
Related advisories
- bnpl-blocks-atom-bnpl-integrations-breadcrumbs@35.2.9
- bnpl-blocks-atom-desktop-bnpl-text@35.2.5
- bnpl-blocks-atom-bnpl-star-rating@35.8.2
- bnpl-blocks-atom-bnpl-reviews-counter@35.3.6
- bnpl-blocks-independent-bnpl-documents@35.6.6
- dolyame-ui-confirmation@35.3.3
- devplatform-spa-plugin-location@35.9.2
- devplatform-spa-plugin-i18next-instance@35.5.9
Independently detected by the Leitwacht supply-chain probe. IOCs are defanged. Published CC0. Think this is a mistake? See the dispute policy.