Malicious PDF — malware analysis report

Static analysis result for SHA-256 61da510dff5d2d4e…

MALICIOUS

PDF

14.3 KB
MD5: d79312744b494447fe7df8d5f10a29e9 SHA-1: 21dfd27f80240aa2c1b2f7d114960153eabe9729 SHA-256: 61da510dff5d2d4e03dc924b9d33a8ca2783156afe23337843de2d779d8eb077
160 Risk Score

Malware Insights

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

The file is a PDF that contains an XFA form, which is exploited by CVE-2010-0188. This exploit is known to deliver JavaScript payloads. The embedded URL, while seemingly benign, is associated with XFA templates and may be used in conjunction with the exploit. The ML classifier and ClamAV detection strongly indicate malicious intent, likely involving the execution of a second-stage 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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