Malicious PDF — malware analysis report

Static analysis result for SHA-256 9636a885b890bc46…

MALICIOUS

PDF

97.0 KB
MD5: bc16a67ecdbf19633d284ddd848713d8 SHA-1: 47b7a055bffe7364ec506c2a8af7bb6fb40fd0a2 SHA-256: 9636a885b890bc460ab373c8aee6b5260b1b273149db24e945d8ef772de9ee37
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 is designed to execute malicious code. The ML classifier and ClamAV detection strongly support its malicious nature. The embedded script is likely responsible for downloading and executing a second-stage payload, though its exact functionality is obscured by the PDF structure.

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
b642b3eaa0afad8bd2b0e63fa0af6d8fe0291067e434795fd6f3e2c841bee3fa		 pdf-embedded-script PDF raw stream script payload at offset 0x26C 98657 bytes

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