Malicious PDF — malware analysis report

Static analysis result for SHA-256 2045836f8b5c7562…

MALICIOUS

PDF

102.9 KB
MD5: 883e5d72077e974396a0f6eb0b65333b SHA-1: ece6da2bfc306e4956e5db0dda3a5402483243b9 SHA-256: 2045836f8b5c756284d2f7f809acb02e97e6c52fe01d103947c827e35ba2e488
88 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file utilizes XFA forms, a known vector for exploitation. A critical ClamAV heuristic identified it as Pdf.Exploit.Agent-6136306-0. An embedded script payload was also detected, suggesting it is designed to download and execute a second-stage payload. The exact nature of the script's execution is unclear due to obfuscation, leading to a moderate confidence score.

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_0000025e.bin
e7453e3e3ff3b3746a48be1eb9e2f8d299f380accfa51285cef665874d7c95db		 pdf-embedded-script PDF raw stream script payload at offset 0x25E 104605 bytes

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