Malicious PDF — malware analysis report

Static analysis result for SHA-256 072c975da593228a…

MALICIOUS

PDF

14.4 KB
MD5: eb4537ab58d9fcb3671841fdc7cf9db9 SHA-1: 07ce8972c7ae853e8c9b0066d3646235401c648f SHA-256: 072c975da593228a8f1775212449ecb746087cf3401fe84353ba660ae22f93d2
200 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1059.007 JavaScript

The PDF file contains an XFA form that leverages the CVE-2010-0188 vulnerability in Adobe Reader's LibTIFF processing. This exploit is designed to execute arbitrary code, as indicated by the 'Js.Exploit.HTML-30' ClamAV detection and the ML classifier's high confidence. The embedded URL, while seemingly benign, is part of the exploit's structure and may be used to fetch additional malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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/