Malicious PDF — malware analysis report

Static analysis result for SHA-256 f8814e623e784472…

MALICIOUS

PDF

100.5 KB
MD5: 292e5e6b4adfe33abfbe648559a1d9ee SHA-1: 290a6ceedd9e17d10bc6188a7ca30048d43b23c9 SHA-256: f8814e623e784472a5903dcb2772e825d445966100cf3efa4dcde4a358b5b4fe
120 Risk Score

Malware Insights

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

The PDF file contains an embedded script payload and utilizes XFA forms, which are known vectors for exploitation. ClamAV detected this as Pdf.Exploit.Agent-6136306-0, and a machine learning classifier assigned a high probability of maliciousness. The embedded script is likely responsible for downloading and executing 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_00000246.bin
0052ae43ee2903e385444b606007affdfa3c5c67c5c3de898750b30514e79ff4		 pdf-embedded-script PDF raw stream script payload at offset 0x246 102150 bytes

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