Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f168957ec63d832…

MALICIOUS

PDF

79.4 KB
MD5: 9b3414d0655c4d6fa8e08e2d1f3ea21a SHA-1: bd798315c945c458e65b48b05cbf0d4dbc3f09f7 SHA-256: 3f168957ec63d83261c08f8de3e4feea2c80e2431546c128e9d9dc6e8e5d173c
118 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains an embedded script payload and triggers XFA form heuristics, indicating it's designed to exploit PDF vulnerabilities. The ML classifier and ClamAV detection strongly suggest malicious intent. The embedded script is likely responsible for executing the exploit, leading to a malicious outcome.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • ClamAV: Pdf.Exploit.Agent-6136306-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-6136306-0
  • Embedded script payload in PDF stream medium PDF_EMBEDDED_SCRIPT_PAYLOAD
    PDF stream bytes contain an HTML/XFA <script> tag without accompanying Windows shell-execution primitives — common in accessible XFA forms but worth surfacing for analyst review.
  • XFA form low PDF_XFA
    PDF uses XML Forms Architecture — can contain script logic
  • 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/xdp/
    • http://www.xfa.org/schema/xfa-template/2.5/
    • http://www.xfa.org/schema/xfa-data/1.0/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_pdf_script_0000023c.bin
76200f9f094f4c76c7f8bf33deec39b55c3ad9c0ab2a247c90d3203ec175abcf		 pdf-embedded-script PDF raw stream script payload at offset 0x23C 80624 bytes

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