w-docx2pdf@1.0.16
A tool for docx2pdf.
AI Security Review
scanned 15d ago · by lpm-firewall-aiThe install hook retrieves an opaque executable and the package later runs it for document conversion. The inspected source does not establish malicious behavior, so this is a warning for a staged payload carrier rather than a block.
Static reason
No blocking static signals were detected.
Trigger
Installing the package triggers the download; calling the conversion function in Microsoft Office mode triggers execution.
Impact
This stages a remote executable for later execution, but the inspected code does not establish malicious behavior in that executable.
Mechanism
The postinstall script fetches cv.exe from the package's GitHub repository's master branch, and the conversion code passes that executable to a process runner.
AI rationale
The install hook retrieves an opaque executable and the package later runs it for document conversion. The inspected source does not establish malicious behavior, so this is a warning for a staged payload carrier rather than a block.
Evidence
package.jsonscripts/install.mjssrc/downloadFiles.mjssrc/WDocx2pdf.mjssrc/cv.exe
Network endpoints1
github.com/yuda-lyu/w-docx2pdf/raw/refs/heads/master/src/cv.exe
Decision evidence
public snapshotAI called this Suspicious at 88.0% confidence as Dangerous Capability with medium false-positive risk.
Evidence for warning
- The package runs an install hook that downloads a Windows executable into its source directory.
- The downloaded executable comes from the package's GitHub repository's mutable branch and is selected by the conversion code.
- The executable runs when the caller requests Microsoft Office conversion.
Evidence against
- The install hook returns early when it is not running from inside node_modules.
- Conversion is invoked through the package's document conversion function, not automatically during import.
Behavioral surface
ChildProcessCryptoEvalFilesystemNetwork
HighEntropyStringsMinifiedPossibleObfuscationUrlStrings
Source & flagged code
7 flagged · loading sourcepackage.jsonView file
•scripts.postinstall = node scripts/install.mjs
High
Install Time Lifecycle Scripts
Package defines install-time lifecycle scripts.
package.jsonView on unpkgsrcPython/test.batView file
•path = srcPython/test.bat
kind = build_helper
sizeBytes = 23
magicHex = [redacted]
Medium
Ships Build Helper
Package ships non-JavaScript build or shell helper files.
srcPython/test.batView on unpkgtest/ztmp.docxView file
•path = test/ztmp.docx
kind = compressed_blob
sizeBytes = 514867
magicHex = [redacted]
Medium
Ships Compressed Blob
Package ships compressed or archive-like blobs.
Findings
4 High4 Medium6 Low
HighInstall Time Lifecycle Scriptspackage.json
HighShips High Entropy Blobtest/ztmpTrue.pdf
HighPayload In Excluded Dirtest/ztmpTrue.pdf
HighSemantic Analysis Limiteddist/w-docx2pdf.umd.js#virtual:normalized:round1
MediumNetwork
MediumShips Build HelpersrcPython/test.bat
MediumShips Compressed Blobtest/ztmp.docx
MediumStructural Risk Force Deep Review
LowScripts Present
LowEval
LowFilesystem
LowHigh Entropy Strings
LowUrl Strings
LowNested Archive Needs Inspectiontest/ztmp.docx
Affected versions and remediation
This report applies to w-docx2pdf@1.0.16.
See all versions of w-docx2pdf for other recorded verdicts.
- Review the evidence and your use of w-docx2pdf@1.0.16 before allowing it. Restrict the permissions described in this report.
- Choose an independently verified alternative or release. This report does not establish that other versions are safe.
Evidence last updated: .
Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.