Malicious PDF — malware analysis report

Static analysis result for SHA-256 2094a702f2deb5c5…

MALICIOUS

PDF

28.6 KB
MD5: 2bb2e5204519d85d6e00c7a8967f2dcb SHA-1: e6fa4e37f58427721e6f2ad8bff1fd9e6d1a4fe5 SHA-256: 2094a702f2deb5c5e574522a61e6aae0182bc974cb2ccf5c23b249810c021fb2
168 Risk Score

Malware Insights

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

The sample is a PDF file that leverages XFA forms and specifically targets the CVE-2010-0188 vulnerability in Adobe Reader's LibTIFF handling. This exploit is designed to allow arbitrary code execution. The embedded URL, while not directly malicious in reputation, is part of the XFA template structure, indicating a potential delivery vector for further malicious actions.

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/