dolyame-ui-draggable@35.4.6
Malicious code in dolyame-ui-draggable (npm)
Analysis
On require, the package executes a bundled dropper (_runtime.js) that fingerprints the OS/arch and downloads a platform-specific second-stage binary over HTTPS from three Cloudflare Workers hosts (oob-worker[.]cf103-070[.]workers[.]dev, oob-worker[.]cf101-adf[.]workers[.]dev, oob-worker[.]cf100-416[.]workers[.]dev) at paths /pkg/package, /pkg/package-arm64, /pkg/loader_mac, or /pkg/package.exe. If the HTTPS download fails, it reconstructs the payload from base64 chunks retrieved via DNS TXT queries against c[.]sdk[.]dl[.]wel1[.]ru (and sdk/ext/pkg/net[.]dl[.]wel1[.]ru per platform). The downloaded binary is written to the temp dir (as .cache_<hex> on Unix, dotnet_diag_<hex>.exe on Windows), chmod 755, and launched detached via /bin/sh or cmd.exe so it outlives the parent. A rate-limit stamp file (.analytics_state / analytics_state) suppresses repeat execution.
- analyzed by
- Leitwacht
- first seen
- Aug 5, 2026, 01:47 PM
- analyzed
- Aug 5, 2026, 02:26 PM
Related advisories
- delivery-ci-unit@35.9.3
- devplatform-spa-plugin-dom-render@35.5.5
- devplatform-i18n@35.6.2
- devplatform-sre-devplatform-sre-core@35.1.8
- devplatform-spa-plugin-history@35.1.4
- devplatform-nx-react@35.9.4
- dolyame-boxy-atom-container@35.3.2
- devplatform-react-query-clients@35.7.7
Independently detected by the Leitwacht supply-chain probe. IOCs are defanged. Published CC0. Think this is a mistake? See the dispute policy.