MALICIOUS
104
Risk Score
Malware Insights
MITRE ATT&CK
T1059.001 JavaScript/JScript
T1204.002 Malicious File
The PDF file contains embedded JavaScript and utilizes ASCIIHexDecode filters, which are indicators of exploit activity. ClamAV detection of 'Js.Exploit.Shellcode-18' strongly suggests malicious JavaScript execution. The XFA form structure further supports the likelihood of exploitability. The primary intent appears to be the execution of malicious JavaScript, likely to download and run a secondary payload.
Heuristics 6
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ClamAV: Js.Exploit.Shellcode-18 critical CLAMAV_DETECTIONClamAV detected this file as malware: Js.Exploit.Shellcode-18
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ASCIIHexDecode filter (with exploit indicators) medium PDF_FILTER_HEXHex-encoding filter present alongside exploit delivery indicators — often used to hide payload or shellcode bytes
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JavaScript action low PDF_JAVASCRIPTPDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://ns.adobe.com/xdp/
- http://www.xfa.org/schema/xci/2.6/
- http://www.xfa.org/schema/xfa-template/2.6/
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