MALICIOUS
66
Risk Score
Malware Insights
MITRE ATT&CK
T1204.002 Malicious File: User Execution: Malicious File
The PDF file was flagged as malicious by an ML classifier with a high confidence score. It contains an embedded script payload, which is a common technique for delivering malware. The presence of XFA form elements and embedded files further suggests a malicious intent, likely to exploit a PDF vulnerability and execute the embedded script. The script itself is too obfuscated to determine its exact function, but its presence strongly indicates a malicious payload delivery mechanism.
Machine Learning
- Nyx PDF Classifier malicious score 0.9799
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_000002dc.bina6bcb8cca6347785830809fcc06e0466df318dfcd85cf15ed2000f6e835979c6 |
pdf-embedded-script | PDF decompressed stream script payload at offset 0x2DC | 14232 bytes |
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