Malicious PDF — malware analysis report

Static analysis result for SHA-256 52f2f2455bd4b423…

MALICIOUS

PDF

97.3 KB
MD5: 39b93878a5a9f52ddddf97fffb8e27a5 SHA-1: f260450347fee3e3e1edf8a07b4f42e03b0ebc12 SHA-256: 52f2f2455bd4b42392d7e8a70c54fc3b90f58ccce04d9d8fe9c4a9c0909d2cc2
118 Risk Score

Malware Insights

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

The PDF contains an embedded script payload, flagged by heuristics and a machine learning classifier. ClamAV identifies it as Pdf.Exploit.Agent-6136306-0, indicating a known exploit. The XFA form suggests a potential vector for script execution. 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
b8848011d27c28899f9ffe7d0d4e85f6ed6319929f1ea69b94a066bbbe8e1908		 pdf-embedded-script PDF raw stream script payload at offset 0x26C 98867 bytes

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