Malicious PDF — malware analysis report

Static analysis result for SHA-256 b3d82a8f5450eefb…

MALICIOUS

PDF

17.9 KB
MD5: d0ed74fa590db470e48d643a85a0095d SHA-1: 06579bbf393bb60b66d6b2241ea307b8db390ddd SHA-256: b3d82a8f5450eefbd3979eb68b02ef5adf9627746d4fce3c943f8c0e3ad4effc
170 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.002 Malicious File T1566 Phishing T1566.001 Spearphishing Attachment T1566.002 Spearphishing Link T1190 Exploit Public-Facing Application

The file is a PDF document that leverages XFA forms to exploit CVE-2010-0188, a known vulnerability in Adobe Reader. The XFA numeric evaluation stager indicates the execution of a secondary payload. The embedded URL, while not directly malicious in reputation, is part of the XFA template structure and could be used to download further malicious content.

Heuristics 6

  • 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-36831 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36831
  • 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
  • PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED
    The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PSEOF. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
  • 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/