MALICIOUS
66
Risk Score
Malware Insights
MITRE ATT&CK
T1059.001 PowerShell
T1204.002 Malicious File
The PDF document was flagged as malicious by an ML classifier with high confidence. It contains an embedded script payload, indicated by the PDF_EMBEDDED_SCRIPT_PAYLOAD heuristic. The script is likely responsible for downloading and executing a second-stage payload, although its exact functionality is obscured. The presence of XFA forms and embedded files further suggests a complex malicious structure.
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_000002da.bin7394b6a43b24a92b736eb51ef174cdd532fa28eeb4a69d38e3c48f0867c3cf90 |
pdf-embedded-script | PDF decompressed stream script payload at offset 0x2DA | 14232 bytes |
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