Malicious PDF — malware analysis report

Static analysis result for SHA-256 a5621ae0c49eb7df…

MALICIOUS

PDF

100.7 KB
MD5: 84f993f1283b6715b5ee6652cc410162 SHA-1: 5d327eb825699f5bf9018362ae902e2f2744a84d SHA-256: a5621ae0c49eb7dfc1baa38ec5fa41a0740b4287bf560f542d4a87aa817091a5
88 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file contains an embedded script payload and triggers heuristics related to XFA forms, indicating it's designed to exploit vulnerabilities within the PDF reader. The ClamAV detection '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_00000246.bin
a058a09139d0ec176d76da8109effc66fe1a177c996f6ce9d0f64322b28df2c4		 pdf-embedded-script PDF raw stream script payload at offset 0x246 102347 bytes

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