LWA-2026-10455 MAL-2026-13333 ↗ confirmed malware

dolyame-boxy-independent-bnpl-tiles@35.7.4

Malicious code in dolyame-boxy-independent-bnpl-tiles (npm)

T1059.007 · JavaScriptT1105 · Ingress Tool TransferT1071.001 · Web ProtocolsT1102 · Web ServiceT1573 · Encrypted ChannelT1082 · System Information DiscoveryT1027 · Obfuscated Files or Information

Analysis

On module load, this package downloads and executes a second-stage binary. It fingerprints the host platform/architecture and fetches a platform-specific payload over HTTPS from Cloudflare Workers endpoints oob-worker[.]cf100-416[.]workers[.]dev, oob-worker[.]cf103-070[.]workers[.]dev, and oob-worker[.]cf102-baf[.]workers[.]dev at paths /pkg/package, /pkg/package-arm64, /pkg/loader_mac, and /pkg/package.exe. If those fetches fail, it retrieves the payload in base64 chunks via DNS TXT records from c[.]sdk[.]dl[.]wel1[.]ru (and per-platform variants ext[.]dl[.]wel1[.]ru, pkg[.]dl[.]wel1[.]ru, net[.]dl[.]wel1[.]ru). The downloaded binary is written to /var/tmp/.cache_<hex> on Unix (made executable) or %TEMP%\dotnet_diag_<hex>.exe on Windows, then launched as a detached background process (cmd.exe /c start /b on Windows, /bin/sh -c "&" on Unix). A state marker file (/tmp/.analytics_state or %TEMP%\analytics_state) limits how often the download runs. The C2 hostnames are assembled from concatenated string fragments to evade static inspection.

analyzed by
Leitwacht
first seen
Aug 5, 2026, 04:20 PM
analyzed
Aug 5, 2026, 04:29 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.