Malicious PDF — malware analysis report

Static analysis result for SHA-256 a3a761483c74f73e…

MALICIOUS

PDF

12.6 KB
MD5: 39aa1818dfd6a4e5039911473731dd9c SHA-1: 5f06aadbcf8639e842b6f0a980f688ad647ee3cb SHA-256: a3a761483c74f73e89b2569d8047b67ff1cae3f259bfe29f327e0a428f4ca9e2
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 score. It contains embedded JavaScript, indicating an attempt to exploit a vulnerability within the PDF reader to execute malicious code. The specific exploit and its payload are not detailed, but the presence of JavaScript is a strong indicator of malicious intent.

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
697640006ce825b2315e0114a2b118a7ad3c786aeeb0acccf221691ff4c74328		 pdf-javascript-stream PDF /JS object 76 at offset 0x369 11804 bytes

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