Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2b91fda0b3f50a0…

MALICIOUS

PDF

24.0 KB
MD5: db0c7500428f3e1f1224d6340eb1aef5 SHA-1: 4358c39e5151212c0280da29c5b6d94a4168b16d SHA-256: d2b91fda0b3f50a02ccb21b0e6f4131e6ec4b13e08c0f34a86004e3b00dd0275
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 related to XFA forms. The heuristic firings indicate that the XFA payload was decoded from a raw stream, suggesting it's designed for remote code execution. The embedded URL, while not directly malicious in reputation, is part of the XFA template structure and could potentially be used to load additional malicious content. The document body contains obfuscated JavaScript-like code which likely attempts to download and execute a secondary payload.

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/