Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb548bc67b4019cf…

MALICIOUS

PDF

79.4 KB
MD5: 1cf36ca85892f590056e8d11ac415816 SHA-1: 667c624f1553139d63b3123db978aedc8500818d SHA-256: bb548bc67b4019cf2ba02ad12fd2a52c2d9504e73b0e405da230c4822c6e5c45
118 Risk Score

Malware Insights

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

The PDF utilizes XFA forms and contains an embedded script payload, strongly indicating malicious intent. The ML classifier and ClamAV detection confirm this, flagging it as Pdf.Exploit.Agent-6136306-0. The embedded script is likely responsible for executing the exploit and delivering a secondary payload, though its exact function 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_0000023c.bin
b0c56e2ad52014579325537b49487bab86f4ff2cfeaeafa1176b1175d9c8b51a		 pdf-embedded-script PDF raw stream script payload at offset 0x23C 80622 bytes

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