Malicious PDF — malware analysis report

Static analysis result for SHA-256 4aad9bc1a0b75938…

MALICIOUS

PDF

28.0 KB
MD5: 8c0e5efecc96a6bbefdea0172711ff54 SHA-1: 5ab70f444fad0b8ac19411763fb493283b22965e SHA-256: 4aad9bc1a0b75938ad3f9896d8b91e6b4541a88fd57662891b4de57875394b3a
68 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 JavaScript/JScript T1204.002 Malicious File

The PDF file contains embedded JavaScript, as indicated by the CLAMAV_DETECTION heuristic firing for Js.Exploit.HTML-30. The JavaScript appears to be obfuscated but is likely designed to exploit a vulnerability within the PDF reader. The embedded URL, http://www.xfa.org/schema/xfa-template/2.5/, is likely related to the XFA form structure, which is also flagged. The primary intent seems to be the execution of malicious code via the JavaScript.

Heuristics 3

  • ClamAV: Js.Exploit.HTML-30 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Js.Exploit.HTML-30
  • 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://www.xfa.org/schema/xfa-template/2.5/

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