Malicious PDF — malware analysis report

Static analysis result for SHA-256 197b6a3df8d057cb…

MALICIOUS

PDF

31.7 KB
MD5: 95e7ed172e7934846dc8f08033b1953a SHA-1: f0038e93f49c971cd78cbf3dc35276788813c22a SHA-256: 197b6a3df8d057cbe9bf929b60c4a5127bd2a282d031be34ce44c86c2b96a8a7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.007 JavaScript

The PDF file contains XFA (XML Forms Architecture) data and triggers a critical heuristic for CVE-2010-0188, an Adobe Reader exploit targeting LibTIFF. This exploit is known to execute embedded JavaScript. The embedded URL, while seemingly benign, is present within the document structure. The ML classifier and ClamAV detection strongly indicate malicious intent, likely involving the execution of a secondary payload via JavaScript.

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: 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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