MALICIOUS
66
Risk Score
Malware Insights
MITRE ATT&CK
T1204.002 Malicious File
T1566.002 Spearphishing Attachment
The PDF file was flagged as malicious by an ML classifier with high confidence. Static analysis revealed an embedded script payload within a PDF stream, indicating an attempt to exploit vulnerabilities or deliver malicious content upon opening. The presence of an embedded file further supports a malicious intent, likely for delivering a secondary payload.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 3
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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
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
embedded_file_obj0008.bin2a78a01c497311d3a651a1f94e6b19937d3e9c1506a684ca44298c0970039313 |
pdf-embedded-file | PDF EmbeddedFile object 8 at offset 0xEA | 12823 bytes |
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