Malicious PDF — malware analysis report

Static analysis result for SHA-256 c99e8ce177d7a410…

MALICIOUS

PDF

100.5 KB
MD5: 443b59895abf3b3540df1a58dd38d8fe SHA-1: 7c7e4997c2c31e30c179daa763159da7b1f0eda2 SHA-256: c99e8ce177d7a410d2fb4020ed003e4fd57eed9e4b6836944e570a5f5589ac6e
88 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. ClamAV also detected this file as Pdf.Exploit.Agent-6136306-0, suggesting it's a known exploit. The XFA form structure further points to potential exploitation vectors. The embedded script is likely responsible for downloading and executing a second-stage payload, though its exact functionality is obscured by the PDF structure.

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
f832804458084bc4ac0d1c0fdf4e340e168a7312268b049807bf5fd701ca8df6		 pdf-embedded-script PDF raw stream script payload at offset 0x246 102152 bytes

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