Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b5a15559d23bd9e…

MALICIOUS

PDF

24.1 KB
MD5: 4aebd1773fa4f75fea75b09920c09d2b SHA-1: eb468a2b49766072f7905931219befca83b24541 SHA-256: 7b5a15559d23bd9eae74bbd4132bfb29c9594112efdc6c7db9e8bfea74972835
160 Risk Score

Malware Insights

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

The file is a PDF that contains XFA (XML Forms Architecture) content, which is known to be a vector for exploiting vulnerabilities like CVE-2010-0188 in Adobe Reader. The heuristic firings strongly indicate exploitation for client execution. The embedded URL, while seemingly benign, is present within the document structure and could potentially be used by a second-stage payload.

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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