@onereach/bandwidth-steps-voice-bxml@0.1.3
Malicious code in @onereach/bandwidth-steps-voice-bxml (npm)
T1059.007 · JavaScriptT1105 · Ingress Tool TransferT1027 · Obfuscated Files or Information
Analysis
The package runs a preinstall hook (node setup.mjs) that downloads the Bun JavaScript runtime and executes a 727KB heavily-obfuscated payload (math_init.js) at install time. The payload uses a custom string-array decoder with high-entropy obfuscation, making its behaviour opaque to static inspection while it runs during installation. This is a multi-stage dropper pattern: a small install hook fetches a runtime and then executes an obfuscated second-stage payload on the installer's machine.
- analyzed by
- Leitwacht
- first seen
- Aug 4, 2026, 01:32 PM
- analyzed
- Aug 4, 2026, 01:48 PM
Related advisories
- @onereach/ui-components@27.0.4
- @onereach/ui-components-vue2@27.0.4
- @onereach/expression-components@9.1.3
- @onereach/si-dropdown-advanced@0.4.7
- @onereach/si-collapsible-group@0.6.6
- @onereach/si-radio-group@0.3.7
- @onereach/si-text-message@0.4.7
- @onereach/orest-jest-presets@0.0.5
Independently detected by the Leitwacht supply-chain probe. IOCs are defanged. Published CC0. Think this is a mistake? See the dispute policy.