MALICIOUS
66
Risk Score
Malware Insights
MITRE ATT&CK
T1204.002 Malicious File: User Execution: Malicious Attachment
T1566.002 Phishing: Spearphishing Attachment
T1059.001 Command and Scripting Interpreter: PowerShell
The PDF file was flagged by an ML classifier with high confidence as malicious. Heuristics indicate the presence of embedded scripts and potentially embedded files, suggesting an attempt to deliver a payload. The XFA form structure is also noted. No document body text was available for analysis, and the embedded script was too obfuscated to determine its exact function, but its presence strongly suggests malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
Heuristics 4
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Embedded script payload in PDF stream medium 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 file low PDF_EMBEDDEDPDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
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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/xfa-template/2.5/
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
embedded_pdf_script_000002d8.bin8c4ce56475a75c2649e392a7f5493f771b15cbf03b2263f4893834c81b9b0aa1 |
pdf-embedded-script | PDF decompressed stream script payload at offset 0x2D8 | 3634 bytes |
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