Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ba73b2205701071…

MALICIOUS

PDF

100.8 KB
MD5: 53d5a142d0010c0500233a5027ccf9b9 SHA-1: 2fd56078697dde9a5f5f81aa17f9ddb8f4770843 SHA-256: 8ba73b2205701071328654cccc84acb5f6b72984d5a38a0e9320e406405b759a
88 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution: Malicious Attachment T1059.001 Command and Scripting Interpreter: PowerShell

The PDF file contains an embedded script payload within an XFA form, as indicated by the 'PDF_XFA' and 'PDF_EMBEDDED_SCRIPT_PAYLOAD' heuristics. ClamAV detection 'Pdf.Exploit.Agent-6136306-0' confirms its malicious nature. The embedded script is likely responsible for executing the exploit, leading to the delivery of a secondary payload. The embedded URLs, while not directly malicious, are associated with 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_0000026c.bin
0caea2b041a88db687423db47e58d9960d05c7c9fd05cfebc713268fb79e6998		 pdf-embedded-script PDF raw stream script payload at offset 0x26C 102521 bytes

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