Malicious PDF — malware analysis report

Static analysis result for SHA-256 764236544e654edb…

MALICIOUS

PDF

14.3 KB
MD5: 8c25b6d41eb70e4e3409012f2e54eb6e SHA-1: f353c28f4a9e3a5297dbc8d731b4eebd362d09b4 SHA-256: 764236544e654edbe2fe11cd33963dc3b5760df7a016bb301d2b8fdd2b489db3
170 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution: Malicious Attachment

The PDF file contains XFA forms and triggers the CVE-2010-0188 exploit, indicating it's designed to compromise systems via a vulnerable Adobe Reader installation. ClamAV also detected it as Js.Exploit.HTML-30. The embedded JavaScript, after reconstruction, appears to be obfuscated code intended to execute further malicious actions.

Heuristics 6

  • 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
  • PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED
    The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PSEOF. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
  • 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/