Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb74573c1fb9a5e8…

MALICIOUS

PDF

12.5 KB
MD5: c6c1b1886800c3c86079bb8ab4e4e5d2 SHA-1: 1a1db0f05cab838e28c697e5c6cf23bfdb7e4db7 SHA-256: fb74573c1fb9a5e8ac31e66a4139dc4d264c363aa2ec0e03523676c6b57621cf
106 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: Malicious File

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Exploit.Agent-36723' and a high ML classifier score. It contains embedded JavaScript, indicating an attempt to execute malicious code upon opening. The primary attack vector appears to be exploiting a PDF vulnerability to run this script.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • ClamAV: Pdf.Exploit.Agent-36723 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36723
  • 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
445eef5d348e1716e572cfd5e8bbc3ad8739e1262a7cc4be099aa46b42e9f101		 pdf-javascript-stream PDF /JS object 76 at offset 0x369 11663 bytes

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