Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7f5431780b50e8e…

MALICIOUS

PDF

97.1 KB
MD5: 2d1f737f368f89181d9879f0a92f33d2 SHA-1: 247ea90d09673aaf8d75d319de718088fbc9b718 SHA-256: e7f5431780b50e8e387fcd289715eb0aaf0d3e4d1b43a94e22595da010c6cc47
118 Risk Score

Malware Insights

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

The PDF file contains an embedded script payload and was flagged by ML classifiers and ClamAV as malicious. The presence of XFA forms and embedded scripts indicates an attempt to exploit PDF reader vulnerabilities. The embedded script is likely responsible for downloading and executing a second-stage payload, though its exact functionality is obscured.

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
f3d7c03e55c862edf6cb9c51ca6af5a18e6782a81000e7fe5b611c16f487001a		 pdf-embedded-script PDF raw stream script payload at offset 0x26C 98659 bytes

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