Malicious PDF — malware analysis report

Static analysis result for SHA-256 550c9c68f05c2b67…

MALICIOUS

PDF

100.5 KB
MD5: 78c984f3bfae452d883ed47ee53d5881 SHA-1: 011b8b5b571d8311c2a021dcf8db1265790d30b5 SHA-256: 550c9c68f05c2b67ca362cf8919422fefa25cc0bd3dfbf55f4eb228c619293e0
88 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF document exhibits characteristics of malicious intent, including the presence of an XFA form and a critical ClamAV detection for 'Pdf.Exploit.Agent-6136306-0'. An embedded script payload was also identified, suggesting the file is designed to execute malicious code. The embedded script is likely responsible for downloading and executing a second-stage payload, though its exact functionality is obscured by obfuscation. The embedded URLs, while not directly malicious, are part of the document's 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
a45ad69cf874f8b59c5a921754bc80d67b9968590c24026df8d4efdc0b299a27		 pdf-embedded-script PDF raw stream script payload at offset 0x246 102150 bytes

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