MALICIOUS
148
Risk Score
Malware Insights
MITRE ATT&CK
T1059.007 JavaScript
T1204.002 Malicious File
The PDF file contains XFA (XML Forms Architecture) elements, which are known to be exploited to execute embedded scripts. The 'PDF_XFA_SCRIPT' and 'PDF_XFA_NUMERIC_EVAL_STAGER' heuristics indicate the presence of executable script within the XFA form, designed to act as a stager. ClamAV detection as 'Js.Exploit.HTML-30' further confirms its malicious nature. The embedded URL is likely part of the exploitation chain.
Heuristics 5
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XFA form contains risky executable script high PDF_XFA_SCRIPTPDF embeds an XFA form whose script block contains exploit, submission/launch, or shell-execution primitives. Ordinary LiveCycle print/update scripts are left as generic XFA/JS signals unless stronger behavior is present.
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ClamAV: Js.Exploit.HTML-30 critical CLAMAV_DETECTIONClamAV detected this file as malware: Js.Exploit.HTML-30
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XFA numeric character-table eval stager high PDF_XFA_NUMERIC_EVAL_STAGERPDF 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.
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XFA form low PDF_XFAPDF uses XML Forms Architecture — can contain script logic
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Embedded URL info EMBEDDED_URLOne 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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