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 (XML Forms Architecture) to deliver a malicious payload. Critical heuristics indicate exploitation of CVE-2010-0188, a known vulnerability in Adobe Reader's handling of XFA forms. The embedded URL, while seemingly benign, is part of the exploit chain. The ClamAV detection further confirms its malicious nature. The attack pattern involves tricking the user into opening a malicious PDF that exploits a client-side vulnerability.
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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