Malicious PDF — malware analysis report

Static analysis result for SHA-256 55dec2eef6738172…

MALICIOUS

PDF

79.4 KB
MD5: 8c1250c008a12929695bc885e8966851 SHA-1: 8716be8c84a62550eb430da468f020cfc4296038 SHA-256: 55dec2eef6738172352f206994e3e8899761286d4c6a5c1f623a1b035222fed6
88 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file contains an embedded script payload and triggers XFA form heuristics, indicating it is designed to exploit vulnerabilities within the XFA form processing. ClamAV detection as Pdf.Exploit.Agent-6136306-0 further confirms its malicious nature. The embedded script is likely responsible for downloading and executing a second-stage payload, though its exact functionality is obscured.

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_0000023c.bin
f5e4a958ddfea8dc73f5384b588aa5f003bc2fb51a9f6be08a7c9f1299bb7dbc		 pdf-embedded-script PDF raw stream script payload at offset 0x23C 80622 bytes

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