@or-sdk/tickets@1.9.7
Malicious code in @or-sdk/tickets (npm)
T1059.007 · JavaScriptT1105 · Ingress Tool TransferT1027 · Obfuscated Files or Information
Analysis
The package's preinstall hook (setup.mjs) downloads the Bun runtime and uses it to execute a 727KB obfuscated script bundled as math_init.js. The script is obfuscated with a large encoded string array and a custom decoder, and contains eval/Function/child_process calls, so its full behavior is not statically readable. The package also depends on @or-sdk/base, which is a known-malicious package. Installing this package runs the obfuscated payload at install time.
- analyzed by
- Leitwacht
- first seen
- Aug 4, 2026, 11:57 AM
- analyzed
- Aug 4, 2026, 03:51 PM
Related advisories
- @or-sdk/base@0.44.6
- @or-sdk/sdk-api@0.29.4
- @or-sdk/providers@0.3.8
- @or-sdk/mcp-tools@0.5.4
- @or-sdk/source@2.1.7
- @servicetitan/anvil-token@0.4.4
- @or-sdk/tags@1.1.7
- @or-sdk/transcripts@1.2.7
Independently detected by the Leitwacht supply-chain probe. IOCs are defanged. Published CC0. Think this is a mistake? See the dispute policy.