MALICIOUS
108
Risk Score
Malware Insights
MITRE ATT&CK
T1059.007 JavaScript
T1203 Exploitation for Client Execution
T1566.001 Spearphishing Attachment
This PDF file was flagged as malicious by ClamAV and an ML classifier, indicating it contains an exploit. The presence of an embedded JavaScript payload within a PDF stream, combined with XFA form elements, strongly suggests an attempt to execute arbitrary code. The script's obfuscated nature and truncation prevent a full analysis of its specific actions, but its presence is a critical indicator of malicious intent, likely to download and execute a second-stage payload.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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ClamAV: Pdf.Exploit.Agent-6136306-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Exploit.Agent-6136306-0
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XFA form low PDF_XFAPDF uses XML Forms Architecture — can contain script logic
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Embedded script payload in PDF stream low PDF_EMBEDDED_SCRIPT_PAYLOADPDF stream bytes contain an HTML/XFA <script> tag without accompanying Windows shell-execution primitives — common in accessible XFA forms but worth surfacing for analyst review.
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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/xfa-template/2.5/
- http://www.xfa.org/schema/xfa-data/1.0/
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
embedded_pdf_script_0000023c.bin5ce41c94fd3131c98903de07fe0af22950b03f21476b96602c7945872817a95a |
pdf-embedded-script | PDF raw stream script payload at offset 0x23C | 80620 bytes |
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