MALICIOUS
210
Risk Score
Malware Insights
MITRE ATT&CK
T1059.003 Windows Command Shell
T1204.002 Malicious File
The PDF file contains a launch action that targets cmd.exe, indicating an attempt to execute commands. An embedded script payload was also detected, further suggesting malicious intent. The ML classifier strongly flagged this PDF as malicious. The primary attack vector appears to be the execution of a secondary payload via the command shell.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 4
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Launch action critical PDF_LAUNCHPDF contains a /Launch action whose target is an executable, URL, or UNC path — can start an external application
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/Launch action target: cmd.exe critical PDF_LAUNCH_COMMANDPDF /Launch action specifies an executable target — references a known-dangerous executable (cmd, PowerShell, etc.).
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Embedded script payload in PDF stream high PDF_EMBEDDED_SCRIPT_PAYLOADPDF stream bytes contain script execution markers such as ActiveXObject/CreateObject, WScript.Shell, PowerShell, or shell-exec primitives. This is stronger than ordinary PDF JavaScript because it indicates a staged external script payload hidden in stream bytes.
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Suspicious extracted artifact medium EXTRACTED_FILE_STATIC_TRIAGEOne or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
embedded_pdf_script_0000431f.bin940e5f02e2310c4fc80753ced0d62d7e95a29c43cdb38341149de6dd6355d42c |
pdf-embedded-script | PDF raw stream script payload at offset 0x431F | 16996 bytes |
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Detection
ClamAV:
No threats found
Obfuscation or payload:
likely
Carved artifact contains 2 shell/COM execution token(s).
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