Malicious PDF — malware analysis report

Static analysis result for SHA-256 34fa8745e29f24ba…

MALICIOUS

PDF

24.0 KB
MD5: e729767b596ca6dfb3240fc17373b5fa SHA-1: c6732578091468cd43d5a425c9570fbae3fabd05 SHA-256: 34fa8745e29f24bae9fd59c843e73e07beeaf6f596be01708282a9bbd14f68fd
128 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.004 Command and Scripting Interpreter: PowerShell

The sample is a PDF file identified as malicious by ClamAV, specifically as Pdf.Exploit.Dropped-78. Static analysis detected the use of XFA forms and a critical vulnerability, CVE-2010-0188, which is known to affect Adobe Reader. The embedded URL, while seemingly benign, is part of the XFA structure and likely used in the exploitation process. The exploit targets the LibTIFF component within Adobe Reader's XFA processing, indicating an attempt to execute arbitrary code.

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.Dropped-78 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Dropped-78
  • 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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