Malicious PDF — malware analysis report

Static analysis result for SHA-256 746a54ee6ea19bf2…

MALICIOUS

PDF

9.8 KB
MD5: 8dc6b2456ee8353b59c22c2ae48f5453 SHA-1: c3e6b1d05e9d54ee7e411f5932eef36c540cc25b SHA-256: 746a54ee6ea19bf23e7d01a0d89e2086324db5dc915fd3b9cfbb69c47d750cf4
106 Risk Score

Malware Insights

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

The PDF file contains embedded JavaScript, flagged by multiple heuristics and ClamAV as malicious (Pdf.Dropper.Agent-7273039-0). The JavaScript is likely responsible for downloading and executing a secondary payload, a common technique for dropper malware. The ML classifier also strongly indicates maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • ClamAV: Pdf.Dropper.Agent-7273039-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7273039-0
  • 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
08a3340350d03acfe2b76427d0531f4241d7529580ae79f2cba1b542f40c04df		 pdf-javascript-stream PDF /JS object 69 at offset 0x1BE 23651 bytes

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