PDFex — PDF malware analysis

Static analysis result for SHA-256 ad6ce69f1fc5b661…

MALICIOUS

PDF

5.2 KB Created: 2007-10-16 06:43:14 +03:00
MD5: c3ad77c14686304280cfb01110f63b49 SHA-1: b93a8072af956c8242c8fd1eb6f2c0807ed71322 SHA-256: ad6ce69f1fc5b6612c96aa103d42c0f851ff9cf855a7d15c985efd04d4762470
138 Risk Score

Malware Insights

PDFex · confidence 95%

MITRE ATT&CK
T1204.002 Malicious File: User Execution T1059.003 Command and Scripting Interpreter: Windows Command Shell

The sample is a PDF file flagged by ClamAV as Win.Trojan.PDFex-2. Heuristics indicate a dangerous URI referencing the command interpreter path, specifically 'mailto:test%../../../../../../../../windows/system32/calc.exe".cmd'. This suggests an attempt to exploit a PDF vulnerability to execute the Windows command interpreter.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8377

Heuristics 4

  • ClamAV: Win.Trojan.PDFex-2 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Win.Trojan.PDFex-2
  • PDF URI references command interpreter path high PDF_DANGEROUS_URI_COMMAND
    PDF contains a /URI action whose target uses a mailto/path traversal shape and references a command interpreter or scripting host. This is not a normal web link and matches legacy PDF command execution/dropper lures.
  • External URI low PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://ns.adobe.com/xap/1.0/
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/xap/1.0/mm/

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