Malicious PDF — malware analysis report

Static analysis result for SHA-256 865f11383a90229f…

MALICIOUS

PDF

24.1 KB
MD5: b9468df171c92cd6c1c01aaf68c74868 SHA-1: 88370a3ebe4017f569631c6ff5645d4ff92921c8 SHA-256: 865f11383a90229f59f2fd7cea81e0bb616413db6584c0a7f9ff714e811b74e1
160 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The PDF file contains an XFA form that exploits CVE-2010-0188, a known vulnerability in Adobe Reader for client-side execution. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded URL, while seemingly benign, is present within the document's structure, suggesting it might be part of the exploit chain or a fallback.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • Adobe Reader LibTIFF XFA image exploit — CVE-2010-0188 critical CVE likely CVE_2010_0188
    PDF contains the CVE-2010-0188 exploit template: XFA JavaScript heap-spray setup, a generated TIFF image payload, and assignment of that TIFF data to an XFA image field rawValue to trigger Adobe Reader's LibTIFF parser.
  • ClamAV: Pdf.Exploit.Agent-36821 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36821
  • 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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