Malicious PDF — malware analysis report

Static analysis result for SHA-256 4b99ca3f3291bf63…

MALICIOUS

PDF

79.4 KB
MD5: 74689335522c7e972ada27efb895db03 SHA-1: 8bed439b3343f2d2d1b0663165a0608fe8316ec1 SHA-256: 4b99ca3f3291bf6377af3536f1bea84554935be980f79a435627c5f435caeeb7
88 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains an embedded script payload, indicated by the PDF_EMBEDDED_SCRIPT_PAYLOAD heuristic. ClamAV also detected this file as Pdf.Exploit.Agent-6136306-0, suggesting it's a known exploit. The XFA form detected further points to a potential exploit vector. The embedded script is likely responsible for executing the malicious payload.

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
7543399d59935d98d096a18f03d99afed0b39469f10c1aafa9dce6e8e1678f9a		 pdf-embedded-script PDF raw stream script payload at offset 0x23C 80622 bytes

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