Malicious PDF — malware analysis report

Static analysis result for SHA-256 b57d5dd38ef213bf…

MALICIOUS

PDF

23.9 KB
MD5: fce72ad5d9766689f690c41d2a1fd255 SHA-1: 7fb87b0ec1c3a2b85d6ee26cd48bdd3b01c1f243 SHA-256: b57d5dd38ef213bf131a5875969774cfedcf6b610dbe4307080572884ba9bb45
128 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1559.001 Component Object Model Hijacking

The sample is a PDF file that leverages the CVE-2010-0188 exploit targeting Adobe Reader's XFA form processing. This exploit is known to be used for delivering secondary payloads. The embedded URL, while seemingly benign, is part of the exploit chain. The heuristic firings strongly indicate exploitation of a known vulnerability.

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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