Malicious PDF — malware analysis report

Static analysis result for SHA-256 304ecf7ec0927239…

MALICIOUS

PDF

14.3 KB
MD5: 28d9d7e23eb35234b32dfe2effb22f38 SHA-1: 5b4d2f4ba3f7034c56eb0657a1658bfcbb35f966 SHA-256: 304ecf7ec092723900f1d7a716f0de21a3080e0bfdd96f0dbcbf11c0fa8eff4a
168 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1059.001 PowerShell

The PDF file contains an XFA form that triggers the CVE-2010-0188 exploit in Adobe Reader. The heuristic 'CVE_2010_0188: Adobe Reader LibTIFF XFA image exploit' directly indicates this. Additionally, 'PDF_XFA_NUMERIC_EVAL_STAGER' suggests a stager mechanism is present. ClamAV detection 'Js.Exploit.HTML-30' further confirms malicious JavaScript is involved, likely used to download and execute a second-stage payload.

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/