Malicious PDF — malware analysis report

Static analysis result for SHA-256 31e25e9a70146b63…

MALICIOUS

PDF

100.5 KB
MD5: e719de21702044037cf6a402bb939fb5 SHA-1: b194e847a7646e28de76e946633f8c2057907e8d SHA-256: 31e25e9a70146b63af1f9c0ea5ff4c25286fb1bb925258ad88cf8f71496f73e6
120 Risk Score

Malware Insights

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

The PDF file contains an embedded script payload, indicated by the PDF_EMBEDDED_SCRIPT_PAYLOAD heuristic and confirmed by ClamAV detection as Pdf.Exploit.Agent-6136306-0. The ML classifier also strongly flagged this PDF as malicious. The XFA form structure suggests a potential vector for exploit delivery. The embedded script is likely responsible for downloading and executing a second-stage payload, although 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_00000246.bin
ff44534f73626bfa8400e8895ffe6e5c5dda62e3d54cb289181121a42c608f50		 pdf-embedded-script PDF raw stream script payload at offset 0x246 102237 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.