Malicious PDF — malware analysis report

Static analysis result for SHA-256 c1d74321b5bdaf75…

MALICIOUS

PDF

24.2 KB
MD5: 177dd5abbd38df1e7f753aac7fda8f9a SHA-1: 9b9161fd1058fc014e0405ff216b8e98f0faf9fc SHA-256: c1d74321b5bdaf753feaf25664396c437b63d7f910d906436264d57da3de77a6
128 Risk Score

Malware Insights

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

The critical heuristic firing for CVE-2010-0188 indicates exploitation of a known Adobe Reader vulnerability. The presence of an XFA form further supports this attack vector. ClamAV detection as Js.Exploit.HTML-30 suggests the payload likely involves JavaScript, which is often used to download and execute further stages. The embedded URL, while seemingly benign, is associated with XFA schemas and could be a lure or 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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