Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e59ae0c984dff59…

MALICIOUS

PDF

21.2 KB
MD5: 7484234dd91c8a9e19f50bcfbee98cae SHA-1: bee63f5d6b34840376f31cde45f985da3d1ea983 SHA-256: 7e59ae0c984dff59223d0164d54f177c25588b8a38d566ea5eba759e32cfc186
168 Risk Score

Malware Insights

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

The sample is a PDF file that leverages the CVE-2010-0188 vulnerability in Adobe Reader's LibTIFF component via an XFA form. This exploit is designed to execute arbitrary code, likely to download and run a secondary payload. The embedded URL is a common schema reference for XFA templates and does not appear to be a direct malicious indicator itself, but its presence is noted.

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.Dropped-78 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Dropped-78
  • 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/

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