MALICIOUS
66
Risk Score
Malware Insights
MITRE ATT&CK
T1204.002 Malicious File
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF exhibits multiple high and medium severity heuristic firings, including an embedded script payload and ML classification indicating maliciousness. The presence of an embedded file further supports its role as a delivery mechanism. While the document body is unreadable, the embedded script is the primary indicator of malicious intent, likely to download and execute a second-stage 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.bind6c60668928e0fd2f6da7df55eb9ca1d23515a876f402741754c84576f707985 |
pdf-embedded-file | PDF EmbeddedFile object 8 at offset 0xEA | 12654 bytes |
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