MALICIOUS
70
Risk Score
Malware Insights
MITRE ATT&CK
T1059.001 PowerShell
T1204.002 Malicious File
The PDF file contains an embedded script payload, identified by the 'PDF_EMBEDDED_SCRIPT_PAYLOAD' heuristic. The ML classifier also flagged this PDF as malicious with a high probability. The embedded artifact is a JavaScript file, which is likely responsible for executing the malicious payload. The exact nature of the script's execution is not fully detailed, but its presence strongly indicates a malicious intent, likely to download and execute further stages or exploit vulnerabilities.
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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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
stream_001_off00000331.js28043fae0f4e89a30388379e4340ef72e7adc73a08cfe7a910593aede95ca52a |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x331 | 13561 bytes |
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