Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1102cece94242eb…

MALICIOUS

PDF

28.6 KB
MD5: 0b5f72b29c69d38fbcabb165ef1937a1 SHA-1: 5ade84872f0f3e7e1072e1696b12da9719a50443 SHA-256: e1102cece94242eb975acbf8aa163149f5ccc67aff3bf155ab4c1667757efba4
168 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1566.001 Phishing: Spearphishing Attachment

The file is a PDF document that leverages the CVE-2010-0188 vulnerability, which is a known exploit targeting Adobe Reader's XFA form processing. The heuristic firings indicate the presence of an XFA form and a numeric evaluation stager, confirming the exploitation attempt. The embedded URL is likely related to the XFA template, but no further malicious activity was directly observed.

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: Pdf.Exploit.Agent-36825 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36825
  • 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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