Malicious PDF — malware analysis report

Static analysis result for SHA-256 a7962749282de779…

MALICIOUS

PDF

14.3 KB
MD5: 4be81620591ac71bb85e913b6c0ef21f SHA-1: 9e024150a5bd55ef7facad1d5c319387e593943a SHA-256: a7962749282de779fc0f6d57d467b7fcaa2da58033018051a8154d78b6f5665d
168 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1059.007 JavaScript

The sample is a PDF file that leverages the CVE-2010-0188 exploit targeting Adobe Reader's XFA forms. The embedded JavaScript, detected by ClamAV as Js.Exploit.HTML-30, is likely responsible for executing the exploit payload. The embedded URL is likely related to the XFA template schema.

Heuristics 5

  • 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 numeric character-table eval stager high PDF_XFA_NUMERIC_EVAL_STAGER
    PDF XFA initialize script reads numeric form data from rawValue, maps the values through a short character table, and evals the reconstructed stage. This is an exploit-kit staging technique even when the final decoded layer remains encoded.
  • 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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