Malicious PDF — malware analysis report

Static analysis result for SHA-256 e4d0d9427326a8db…

MALICIOUS

PDF

14.4 KB
MD5: 75a11cdf163449a327b86b0e52d0d21f SHA-1: d67a8f44cc4bcbfe60f6b74f8ba211fb1f512dd3 SHA-256: e4d0d9427326a8db0cafb9281e2a57ca1ab43104d49c0e99ec5231177eb70041
168 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1566.001 Spearphishing Attachment

The file is a PDF document that leverages XFA forms to exploit CVE-2010-0188 in Adobe Reader. This exploit is known to download and execute a second-stage payload. ClamAV also detected this as Js.Exploit.HTML-30, further indicating malicious JavaScript execution. The embedded URL is likely related to the XFA template but is not directly indicative of the payload's destination.

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/