Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec05fe4ef521ab0c…

MALICIOUS

PDF

12.7 KB
MD5: 65b671f77c3e055cb96cbb8d9d24ccb4 SHA-1: d3fec5a95b12e5b7f1edf78e4552923c442dba17 SHA-256: ec05fe4ef521ab0cb9a208f77554555e27205ccc1c83343e8c50983c41b99bf3
128 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious Link/Object: Malicious File T1059.001 Command and Scripting Interpreter: PowerShell

The sample is a PDF file that leverages an XFA form to trigger the CVE-2010-0188 exploit, targeting Adobe Reader. ClamAV also identified it as Js.Exploit.HTML-30, indicating embedded JavaScript exploitation. The embedded URL, while seemingly benign, is part of the XFA structure and likely used in 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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