Malicious PDF — malware analysis report

Static analysis result for SHA-256 b197b7b45fc0d682…

MALICIOUS

PDF

97.3 KB
MD5: a1c6fca39b95d2d3d1875f111b4edb4a SHA-1: 84643dacf6c21df070f6e3da699a5aaec1c93781 SHA-256: b197b7b45fc0d6823f4504f70a26a6b29a96b76ea5cc2246ba397783663142fa
118 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by a machine learning classifier and ClamAV, indicating it contains an exploit. The presence of an XFA form and an embedded script payload suggests the document is designed to execute malicious code. The embedded script is likely responsible for downloading and executing a second-stage payload, although its exact functionality is obscured.

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_0000026c.bin
fadb6cf33d52bfc5ee448b3249535ad4dd95f28e3166c8a113fa732361b3b50c		 pdf-embedded-script PDF raw stream script payload at offset 0x26C 98867 bytes

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