Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3b399e4b785c1dc…

MALICIOUS

PDF

4.0 KB
MD5: bed1fe814e76ef202f30fe2814e2d4d0 SHA-1: a8951d9d2c73ecbcf3c98011407cad2aec268f4f SHA-256: e3b399e4b785c1dcb1bc5307af5c4635378bf55edbcc4d5e29138df11b4e7d22
98 Risk Score

Malware Insights

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

The PDF file was flagged by ClamAV as Js.Exploit.HTML-30, indicating the presence of malicious JavaScript. The ML classifier also assigned a high probability of maliciousness. The embedded URL, while seemingly benign, is part of the PDF structure and may be used in conjunction with the exploit. The XFA form suggests a complex PDF structure often used to host exploits.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9843

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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