Malicious PDF — malware analysis report

Static analysis result for SHA-256 be4c152bac98a7a7…

MALICIOUS

PDF

102.9 KB
MD5: 062fb780894f5cf346811fb9cbbfc620 SHA-1: 88e4c8119e4427c51604fd46e7acdce1ccd21071 SHA-256: be4c152bac98a7a782d14fbd1de243a2b21c57be695e84115959a8a10bd80033
118 Risk Score

Malware Insights

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

The PDF was flagged by ML classifiers and ClamAV as malicious, specifically identifying it as Pdf.Exploit.Agent-6136306-0. The presence of an XFA form and an embedded script payload indicates an attempt to execute malicious code. 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_0000025e.bin
4134e2fc7e9f38e6434241a29de9984755844ebb4b9333806d43ad91e33f7a7e		 pdf-embedded-script PDF raw stream script payload at offset 0x25E 104607 bytes

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