LWA-2026-10230 MAL-2026-13151 ↗ confirmed malware

dolyame-ui-draggable@35.4.6

Malicious code in dolyame-ui-draggable (npm)

T1195.002 · Compromise Software Supply ChainT1059 · Command and Scripting InterpreterT1105 · Ingress Tool TransferT1071.001 · Web ProtocolsT1102 · Web ServiceT1041 · Exfiltration Over C2 Channel

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

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Independently detected by the Leitwacht supply-chain probe. IOCs are defanged. Published CC0. Think this is a mistake? See the dispute policy.