@or-sdk/adapters@0.3.8
Malicious code in @or-sdk/adapters (npm)
T1059.007 · JavaScriptT1027 · Obfuscated Files or InformationT1105 · Ingress Tool Transfer
Analysis
The package's preinstall hook (setup.mjs) downloads the Bun runtime from github[.]com/oven-sh/bun/releases and uses it to execute a bundled 727KB obfuscated script (math_init.js) at install time. The script is obfuscated with a large encoded string array and a custom decoder (javascript-obfuscator signature) and contains eval, Function, and child_process usage, concealing its behavior. The package also depends on other packages that are known-malicious. No network C2 endpoint could be extracted from the obfuscated payload.
- analyzed by
- Leitwacht
- first seen
- Aug 4, 2026, 11:59 AM
- analyzed
- Aug 4, 2026, 05:37 PM
- weekly installs
- 363
Related advisories
- @or-sdk/base@0.44.6
- @or-sdk/sdk-api@0.29.4
- @or-sdk/providers@0.3.8
- @or-sdk/tables@0.28.7
- @or-sdk/store@2.1.7
- @or-sdk/bots@1.7.3
- @or-sdk/card-templates@2.2.7
- @or-sdk/keys@1.2.8
Independently detected by the Leitwacht supply-chain probe. IOCs are defanged. Published CC0. Think this is a mistake? See the dispute policy.