Malicious PDF — malware analysis report

Static analysis result for SHA-256 373e5f9333604bfe…

MALICIOUS

PDF

24.1 KB
MD5: 33d580663bef75f0ffe091c1ce217748 SHA-1: f5f5b3eb70e7bbcc0214ef6b516d583facbe3667 SHA-256: 373e5f9333604bfe1c6009b1ac210c52a6f61ba23e54d0631f0b36b2a3cbe600
128 Risk Score

Malware Insights

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

The sample is a PDF file that leverages an XFA form to exploit CVE-2010-0188 in Adobe Reader. This exploit is designed to execute arbitrary code. The embedded URL, while not directly malicious in reputation, is part of the XFA template structure and is associated with the exploit delivery mechanism. No scripts were extracted, but the critical heuristic firings strongly indicate a client-side exploit.

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: Pdf.Exploit.Agent-36821 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36821
  • 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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