Malicious PDF — malware analysis report

Static analysis result for SHA-256 2fc0a481cffcb6e2…

MALICIOUS

PDF

12.7 KB
MD5: 523c1554d42c7e3fb6572a49377fe947 SHA-1: 4d4d2061cefceb6424783f190948b83d11cdedb4 SHA-256: 2fc0a481cffcb6e27bdccffbde44da3a88de093157f77befbc79caa7173ffe80
128 Risk Score

Malware Insights

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

The file is a PDF document that leverages the CVE-2010-0188 exploit targeting Adobe Reader's XFA forms. Heuristics indicate the exploitation of LibTIFF within XFA, and ClamAV detected it as Js.Exploit.HTML-30. The embedded URL, while seemingly benign, is part of the exploit chain. The script execution, indicated by ClamAV's detection, likely aims 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: 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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