MALICIOUS
66
Risk Score
Malware Insights
MITRE ATT&CK
T1204.002 Malicious File: User Execution: Malicious PDF
T1553.005 Subversion: Mark-of-the-Web Bypass
The ML classifier strongly indicates this PDF is malicious. The presence of an embedded script payload and an embedded file suggests an attempt to deliver a secondary payload or exploit. The XFA form structure is also noted, which can sometimes be leveraged for malicious purposes. The embedded URLs are related to Adobe XFA, but their reputation is unknown or benign, providing no direct IOCs for malicious infrastructure.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
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/
- 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_file_obj0008.binf6b1403adfe74045220e21217be2c012319e4b7adc61790cf02b70bed3ea7c36 |
pdf-embedded-file | PDF EmbeddedFile object 8 at offset 0xC6 | 12968 bytes |
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