Malicious PDF — malware analysis report

Static analysis result for SHA-256 f65592c756b53077…

MALICIOUS

PDF

79.4 KB
MD5: f772bd6b3edfc3081db39e9bdcbcd244 SHA-1: 0ac5494675184d591e2f1fd6d9ebca63d4aeb5a2 SHA-256: f65592c756b530778c8e94c237c42e2f07c149ab7e7f4b5cf672266d1bb5fc6d
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 suggest malicious intent. The embedded script is likely responsible for exploiting a PDF vulnerability to achieve code execution, potentially leading to further stages of an 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://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
d4262ddc5246477ada0f0dfc1cd96a97f066380397087719f2222f9b2aef7385		 pdf-embedded-script PDF raw stream script payload at offset 0x23C 80624 bytes

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