Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff69ba267994b933…

MALICIOUS

PDF

14.3 KB
MD5: 11a58c044839ef0dfe494ef488b2cc20 SHA-1: a8c74531b214a985c606270f9f117dc781f50cf2 SHA-256: ff69ba267994b93320ae13743c1ae92be6eab81af8f6a6bcfa4ae65912541a9e
168 Risk Score

Malware Insights

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

The PDF file contains an XFA form that leverages the CVE-2010-0188 vulnerability in Adobe Reader. This exploit is designed to execute malicious JavaScript, as indicated by the ClamAV detection 'Js.Exploit.HTML-30'. The embedded URL, while not directly malicious, is part of the XFA template structure. The document body appears to be obfuscated JavaScript code, likely intended 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/