Malicious PDF — malware analysis report

Static analysis result for SHA-256 925d07ceae1b957b…

MALICIOUS

PDF

101.5 KB
MD5: 32ef6b61320b7cfc04da97ac67c1ea40 SHA-1: 19c31a679eb541f49563b9e78d6a23f0941556a2 SHA-256: 925d07ceae1b957b6283c57ae96929d7e974af9a85043344e7172bc749e1fcf6
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 a critical ClamAV detection for Pdf.Exploit.Agent. The ML classifier also flagged it as highly malicious. The presence of XFA form elements and embedded script suggests an exploit attempt, likely to download and execute a second-stage payload.

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_0000025e.bin
7f30f9187b15166720a733d03f61e49050bcf7459aeac65074ee356f432c6944		 pdf-embedded-script PDF raw stream script payload at offset 0x25E 103259 bytes

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