MALICIOUS
66
Risk Score
Malware Insights
MITRE ATT&CK
T1204.002 Malicious File
T1566.002 Spearphishing Attachment
The PDF exhibits multiple high-confidence indicators of maliciousness, including an embedded script payload and a strong ML classifier score. The presence of an embedded file further suggests it is designed to deliver a secondary payload. The specific nature of the embedded script could not be determined due to obfuscation, but its presence is a strong indicator of malicious intent.
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.binef516b8acd6e5b1a97d05636b191580075e1e8c7d7f0dd1f18388b134a936607 |
pdf-embedded-file | PDF EmbeddedFile object 8 at offset 0xEA | 12454 bytes |
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