Malicious PDF — malware analysis report

Static analysis result for SHA-256 011f3a889dd02370…

MALICIOUS

PDF

16.2 KB
MD5: a14efd74e670d1ad658035f461ae9f5c SHA-1: 0c780be883af268c6e9e0eb79a943d5b2cd34f02 SHA-256: 011f3a889dd023706c0bc873fb67a8b73006aaede47082a94859af187e000c47
106 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 JavaScript/JScript T1204.002 Malicious File

The PDF contains embedded JavaScript, flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Exploit.Agent-36324'. The JavaScript is heavily obfuscated but appears to be designed to download and execute a secondary payload, a common technique for initial access. The ML classifier also strongly indicates maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • ClamAV: Pdf.Exploit.Agent-36324 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36324
  • 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_obj0076_000.js
84c43b9ca5b2a3dbac1e2dc57389b90459bc5928295dca9db27b770c26d21483		 pdf-javascript-stream PDF /JS object 76 at offset 0x2D4 15659 bytes

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