Malicious PDF — malware analysis report

Static analysis result for SHA-256 a7e1d4fb508b203c…

MALICIOUS

PDF

14.1 KB
MD5: 28e71152393da3cf848706a4b35f6fa2 SHA-1: 114111188c2151507bbe95d000cbe3a94b5246a4 SHA-256: a7e1d4fb508b203c44ace93ce646f4ae4894ee3d677151701606e6b94cf95609
168 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File: User Execution: Malicious File T1059.001 Command and Scripting Interpreter: PowerShell

The sample is a PDF file that exploits CVE-2010-0188 via XFA forms to execute JavaScript. The ClamAV heuristic 'Js.Exploit.HTML-30' further confirms the presence of JavaScript-based exploitation. The embedded URL is likely part of the exploit chain, potentially leading to further payload delivery.

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/