Malicious PDF — malware analysis report

Static analysis result for SHA-256 39d515e4e959991c…

MALICIOUS

PDF

120.4 KB
MD5: c0c77c41845f2fc9171ce535b74e17e5 SHA-1: 23153978f2f45802195876e5e50e8f1db0940591 SHA-256: 39d515e4e959991c56ecf406586bf7dffbf9f9f58b88531cc82d85543fa349d2
98 Risk Score

Malware Insights

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

The file is a PDF identified as malicious by ClamAV and an ML classifier, specifically flagging an XFA form. The embedded URL, while not directly malicious in reputation, is associated with XFA templates, suggesting a potential exploit vector. The PDF likely leverages the XFA form to download and execute a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • ClamAV: Pdf.Exploit.Dropped-78 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Dropped-78
  • 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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