Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f0d4f152af5de11…

MALICIOUS

PDF

9.4 KB
MD5: 4bf361d1b010115684974c8396fa2aab SHA-1: d851d77d6d699696f91f2c6fd3bc4bd67add8c4e SHA-256: 0f0d4f152af5de11426ee72752c3fdabb008fa47a19f2694fcedf5ced93a99d9
106 Risk Score

Malware Insights

MITRE ATT&CK
T1059.007 JavaScript T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript, identified by multiple heuristics and ClamAV detection as a dropper. The JavaScript is heavily obfuscated, but its presence and the ML classifier's high confidence indicate it is designed to download and execute a secondary payload. The specific payload and its ultimate destination are not discernible from the provided evidence.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • ClamAV: Pdf.Dropper.Agent-7229189-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7229189-0
  • JavaScript action low PDF_JAVASCRIPT
    PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
javascript_obj0069_000.js
d427c115a94bc625c57f5bb1bc2a703b774419bed0295215d5fac2c4a27d5508		 pdf-javascript-stream PDF /JS object 69 at offset 0x1BE 27792 bytes

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