Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f25a21d9c78f8e2…

MALICIOUS

PDF

97.3 KB
MD5: 25d6dabb18677b3bd4bb130910ac09df SHA-1: a6cac5d30b0d5d298fbe920d613163b1f99da352 SHA-256: 8f25a21d9c78f8e20b60cde8e886abc628decd3e3736cbb7d327cc4662d9b386
120 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 further malicious activity.

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
238ba1da023833ec38bdf88f2e6a8d1310053df2ebe542a0d572f54623ac0b76		 pdf-embedded-script PDF raw stream script payload at offset 0x26C 98867 bytes

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