Malicious PDF — malware analysis report

Static analysis result for SHA-256 7174da5a00b3f083…

MALICIOUS

PDF

42.8 KB
MD5: 2ed2ec92dc73887c0f0f98080aa98c29 SHA-1: 8a2d33474bd9927abeb41fbe6d6e295b1620fa71 SHA-256: 7174da5a00b3f08352986f05594b509ecc7f027ac75fa8da5604dfe48fcd69df
176 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.007 JavaScript

The PDF file contains embedded script content and is flagged by multiple heuristics, including ClamAV detection for 'Pdf.Exploit.Agent-36830'. The ML classifier also indicates a high probability of maliciousness. The embedded script likely attempts to exploit a vulnerability to achieve code execution.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • ClamAV: Pdf.Exploit.Agent-36830 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36830
  • Embedded file low PDF_EMBEDDED
    PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
  • XFA form low PDF_XFA
    PDF uses XML Forms Architecture — can contain script logic
  • Embedded script payload in PDF stream low 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.
  • 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/ In PDF document text
    • http://www.xfa.org/schema/xfa-template/2.5/In PDF document text
    • http://www.xfa.org/schema/xfa-data/1.0/In PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0008.bin
73ac862721d2530ec28c722d10668b9e34c7de3144bb6ab14b7c9f9b6d87dcf1		 pdf-embedded-file PDF EmbeddedFile object 8 at offset 0xC6 43084 bytes
Detection
ClamAV: Pdf.Exploit.Agent-36830
Obfuscation or payload: unlikely

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