Malicious PDF — malware analysis report

Static analysis result for SHA-256 3afd98ba10049674…

MALICIOUS

PDF

101.3 KB
MD5: 22cc962c95c1fa8e711dc593edf8aeff SHA-1: 6b29f45005dbbf68cf832b4b9b9461b9d5601317 SHA-256: 3afd98ba100496749d24618fad1bf4f20917ed65ec0760844a54c37079b52637
120 Risk Score

Malware Insights

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

The PDF utilizes XFA forms and contains an embedded script payload, strongly indicating malicious intent. The ML classifier and ClamAV detection further confirm this. The embedded script is likely responsible for downloading and executing a second-stage payload, though its exact functionality is obscured by the XFA structure.

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
f2272e9f9698606a772511ef7bc9f02ce41c861a6429914096780f489e089cf7
pdf-embedded-script PDF raw stream script payload at offset 0x25E 103041 bytes