LWA-2026-10528 MAL-2026-13311 ↗ confirmed malware

dolyame-boxy-fonts@35.4.8

Malicious code in dolyame-boxy-fonts (npm)

T1059 · Command and Scripting InterpreterT1059.007 · JavaScriptT1105 · Ingress Tool TransferT1071.001 · Web ProtocolsT1071.004 · DNST1082 · System Information DiscoveryT1543 · Create or Modify System Process

Analysis

dolyame-boxy-fonts is a trojanized package that, when required, downloads and executes a remote binary. Its loader (lib/_loader.js) fetches a platform-specific payload over HTTPS from three Cloudflare Workers endpoints (oob-worker[.]cf100-416[.]workers[.]dev, oob-worker[.]cf103-070[.]workers[.]dev, oob-worker[.]cf99-9b3[.]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 c[.]sdk[.]dl[.]wel1[.]ru (and ext/pkg/net[.]dl[.]wel1[.]ru). The downloaded binary is written to /var/tmp/.cache_<hex> (or %TEMP%\dotnet_diag_<hex>.exe on Windows) and launched detached in the background. The package otherwise contains no real font functionality.

analyzed by
Leitwacht
first seen
Aug 5, 2026, 04:56 PM
analyzed
Aug 5, 2026, 05:00 PM

Related advisories

browse all confirmed advisories →

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