Malicious PDF — malware analysis report

Static analysis result for SHA-256 8aa3d6884e7c5ca1…

MALICIOUS

PDF

100.4 KB
MD5: 25f246a3d00ed49b857baface3fef463 SHA-1: 1e267f414964060dbbd5fd65d57322b1d7cb0b94 SHA-256: 8aa3d6884e7c5ca1e1f9b973731adbd7e856f9e49db3851b892739264cdb62ee
120 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV with the signature Pdf.Exploit.Agent-6136306-0, and a high ML score. It contains an embedded script payload and utilizes XFA forms, indicating an exploit attempt. The embedded script is likely responsible for downloading and executing a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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
822ea57e84d3c2de4e91115df5666fda94fe7be92e2f916ce4c7c7bd2f4d64f6		 pdf-embedded-script PDF raw stream script payload at offset 0x246 102038 bytes

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