Malicious PDF — malware analysis report

Static analysis result for SHA-256 9186c5f199207b68…

MALICIOUS

PDF

13.1 KB
MD5: 15cddcbb22d7f9d9b33c588b51aac6ad SHA-1: 520a870c7f10b71b934ea3bc3814152445d9b9bd SHA-256: 9186c5f199207b6848a4bf75f34b94fa4c3ec8398727cc095eccbd984e8d316d
118 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.002 Malicious File T1059 Command and Scripting Interpreter

The PDF file contains an embedded script payload and utilizes XFA forms, both of which are common techniques for delivering exploits. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded script is likely responsible for executing the exploit, potentially leading to further stages of attack.

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://www.xfa.org/schema/xfa-template/2.5/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_pdf_script_00000359.bin
ea07f910a8ce2436635de7853055b55c2816d6bd91834081867f44eb542c96b7		 pdf-embedded-script PDF raw stream script payload at offset 0x359 12688 bytes

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