MALICIOUS
168
Risk Score
Malware Insights
MITRE ATT&CK
T1204.002 Malicious File
T1566.001 Spearphishing Attachment
The sample is a PDF file that leverages XFA forms and a known vulnerability (CVE-2010-0188) in Adobe Reader's handling of LibTIFF to execute arbitrary code. The critical heuristic firings for CVE_2010_0188 and PDF_XFA_NUMERIC_EVAL_STAGER, along with the ClamAV detection, strongly indicate exploitation. The embedded URL, while seemingly benign, is present within the document structure, suggesting it may be part of the exploit chain or a lure.
Heuristics 5
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Adobe Reader LibTIFF XFA image exploit — CVE-2010-0188 critical CVE likely CVE_2010_0188PDF 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.
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ClamAV: Pdf.Exploit.Agent-36825 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Exploit.Agent-36825
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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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