Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f79a888474aa45c…

MALICIOUS

PDF

24.4 KB
MD5: 4b1e8fb9162502596448d3149673ffff SHA-1: 20d901b4f68d759dbd163853f7f240cff06fb6d0 SHA-256: 5f79a888474aa45c3ce79d07b5d0bd6d4b5040b7fa2a95dc247421aa003a2251
160 Risk Score

Malware Insights

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

The file is identified as malicious due to critical heuristic firings indicating an exploit for CVE-2010-0188 within an XFA form. ClamAV also detected it as Js.Exploit.HTML-30, suggesting embedded JavaScript is involved in the exploit. The embedded URL, while seemingly benign, is part of the XFA structure and may be used in conjunction with the exploit.

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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