Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d466171d54c6092…

MALICIOUS

PDF

97.8 KB
MD5: a78a5be18d9de188e7c05a79396019a0 SHA-1: 9a7ac4f3f2eb2c1684c38b9fd6f931ac085b23e8 SHA-256: 2d466171d54c609248fa63b57b14bf4d2144a304d45623306552bdcffecf8d4a
118 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution: Malicious PDF T1566.002 Phishing: Spearphishing Attachment

The PDF utilizes XFA forms, a known vector for exploiting vulnerabilities. The embedded script payload and ML classifier strongly indicate malicious intent. ClamAV detection as 'Pdf.Exploit.Agent-6136306-0' further confirms this. 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_0000026c.bin
092f3f429023c386edb96a384df34ecead5151b70865b1e3370ace91adb40eb0		 pdf-embedded-script PDF raw stream script payload at offset 0x26C 99415 bytes

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