LWA-2026-10053 MAL-2026-11684 ↗ confirmed malware

@or-sdk/content-request@0.2.8

Malicious code in @or-sdk/content-request (npm)

T1059.007 · JavaScriptT1105 · Ingress Tool TransferT1027 · Obfuscated Files or InformationT1195.002 · Compromise Software Supply Chain

Analysis

The package's preinstall hook (setup.mjs) downloads the Bun runtime and uses it to execute a bundled 727KB obfuscated script (math_init.js). The script is obfuscated with a large encoded string array and a custom decoder, concealing its behavior. The package's actual library code is a trivial HTTP wrapper of a few hundred bytes, so the install-time execution of the large obfuscated payload serves no legitimate purpose for the declared functionality. The package also depends on sibling packages (@or-sdk/base, @or-sdk/providers) that are independently known to be malicious.

analyzed by
Leitwacht
first seen
Aug 4, 2026, 11:59 AM
analyzed
Aug 4, 2026, 05:37 PM
weekly installs
369

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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.