@onereach/or-browser-next@0.0.13
Malicious code in @onereach/or-browser-next (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 JavaScript runtime from the official oven-sh/bun GitHub release and executes a 727KB heavily-obfuscated payload (math_init.js) at install time. The payload uses a custom string-encoding obfuscation scheme that hides its behaviour from inspection. The package also depends on @onereach/or-file-uploader-next@0.0.7, a sibling package that is itself malicious. A Vue file-browser component has no legitimate reason to download a runtime and run an obfuscated 727KB script during installation.
- analyzed by
- Leitwacht
- first seen
- Aug 4, 2026, 11:57 AM
- analyzed
- Aug 4, 2026, 03:04 PM
Related advisories
- @onereach/ui-components@27.0.4
- @onereach/ui-components-vue2@27.0.4
- @onereach/expression-components@9.1.3
- @onereach/or-file-uploader-next@0.0.10
- @onereach/types-contacts-api@9.0.10
- @onereach/orest-cli@2.4.3
- @onereach/lambda-invocation@1.2.3
- @onereach/phonenumber-interpreter@0.0.20
Independently detected by the Leitwacht supply-chain probe. IOCs are defanged. Published CC0. Think this is a mistake? See the dispute policy.