Malicious PDF — malware analysis report

Static analysis result for SHA-256 3aa2e1f4a8afead5…

MALICIOUS

PDF

8.7 KB Created: 2007-10-16 06:43:14 +03:00
MD5: fd4f7c0389ad6a0f2e746cbffd07e5dd SHA-1: 87513528f4872266ec8ede8a8c9286efc9fdc528 SHA-256: 3aa2e1f4a8afead52e411624fdf03b33263df290e697211c6506e3c815e5daec
78 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by an ML classifier and contains a high-severity heuristic indicating a dangerous URI that references the command interpreter. The URI appears to be an attempt to execute the command 'set&shutdown -r -f -t 0' which would force a system reboot. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9497

Heuristics 3

  • 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://www.w3.org/1999/02/22-rdf-syntax-ns#
    • 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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