Malicious PDF — malware analysis report

Static analysis result for SHA-256 c934a0be7fcdcc86…

MALICIOUS

PDF

14.3 KB
MD5: 39cf3b9a88fa1351c09eb65eef2e28a4 SHA-1: a7c0e4678a4b6f8b8684d3c46f18236cd397d34a SHA-256: c934a0be7fcdcc86d8b5dde113be05164f788e95f7a2b1b4944bc5801db39e94
128 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.001 PowerShell

The sample is a PDF file that exploits CVE-2010-0188, a vulnerability in Adobe Reader's handling of XFA forms and LibTIFF. The heuristic firings indicate the presence of an XFA form and a critical exploit targeting this vulnerability. ClamAV also detected it as Js.Exploit.HTML-30, suggesting JavaScript-based exploitation. The embedded URL is likely part of the exploit chain.

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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