Malicious PDF — malware analysis report

Static analysis result for SHA-256 77acc5cb49d31ef6…

MALICIOUS

PDF

14.3 KB
MD5: 021f5ed954fd11c88e37555e3f22dc6e SHA-1: 98558fdf060c6a08d409b6ea1257dbbcb8b8d995 SHA-256: 77acc5cb49d31ef60f80201feba5e210512c1ee9d093b82fd935b1108f068b27
160 Risk Score

Malware Insights

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

The PDF file contains an embedded XFA form that exploits the CVE-2010-0188 vulnerability in Adobe Reader. This exploit is known to download and execute a second-stage payload, likely JavaScript, as indicated by the ClamAV detection Js.Exploit.HTML-30. The embedded URL, while not directly executable, is associated with XFA templates.

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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