MALICIOUS
66
Risk Score
Malware Insights
MITRE ATT&CK
T1204.002 Malicious File
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file was flagged as malicious by an ML classifier with high confidence. It contains an embedded script payload, indicating an attempt to execute malicious code. The presence of XFA form elements and embedded files further supports its malicious nature. The exact intent of the embedded script could not be determined due to its obfuscated nature, but it is likely designed to download and execute a second-stage payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9979
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_0000032a.bin1eca43a43b953085bccdf74d5270ae79c2e62dcfc48e89bc6413a82daa081240 |
pdf-embedded-script | PDF decompressed stream script payload at offset 0x32A | 23519 bytes |
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