Malicious PDF — malware analysis report

Static analysis result for SHA-256 513408e8e6f31ab2…

MALICIOUS

PDF

97.9 KB
MD5: 16ae3a80ad11e3aa7290ff2e6c8c1c2d SHA-1: cee6427313efc6dcf35fe8f7b56099552b5a7743 SHA-256: 513408e8e6f31ab2530c6b03ca8144b949a0fbe624cd5ccd0fda9193480551ab
118 Risk Score

Malware Insights

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

The PDF file contains an embedded script payload and triggers heuristics indicating it is a malicious exploit. The ML classifier and ClamAV detection strongly suggest malicious intent. The presence of XFA form elements further supports the exploitation vector. 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
a578badc7e5ca9240c0edf94fce55bb3b70eb5af48dc97cd1e81f27c9522f45e		 pdf-embedded-script PDF raw stream script payload at offset 0x26C 99521 bytes

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