Malicious PDF — malware analysis report

Static analysis result for SHA-256 7080022329ea5f95…

MALICIOUS

PDF

28.6 KB
MD5: 387c31167acc747a366e042643aa641e SHA-1: d632023b52dec7da4126a3a200fe113e59ae9275 SHA-256: 7080022329ea5f95e934fb8780f11b5d0f72287f293447561efc0c64584586cd
200 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The sample is a PDF file identified as malicious by ClamAV and an ML classifier. It contains an XFA form and triggers a critical heuristic for the CVE-2010-0188 Adobe Reader LibTIFF XFA image exploit. This indicates the file is designed to exploit this vulnerability to gain execution, likely to download and run a secondary payload. The embedded URL is likely related to the XFA template but is not directly actionable as a payload source.

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: Pdf.Exploit.Agent-36825 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36825
  • 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/