MALICIOUS
120
Risk Score
Malware Insights
MITRE ATT&CK
T1059.003 Windows Command Shell
T1204.002 Malicious File
The PDF file contains a launch action that executes a command-line command. This command attempts to echo a VBScript payload to a file named 'm.vbs'. The VBScript payload is obfuscated using string reversal and concatenation, but appears to instantiate 'Scripting.FileSystemObject' and 'WScript.Shell', indicating it is designed to download and execute further malicious content from the embedded URL http://vaygock.com/newsp/tmp/m.vbs.
Heuristics 4
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Launch action high PDF_LAUNCHPDF contains a /Launch action with an unresolved or extension-less target — treat as potentially dangerous
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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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/Launch action target: cmd high PDF_LAUNCH_COMMANDPDF /Launch action specifies an executable target with parameters '/c echo B="m.vbs":With CreateObject(StrReverse("PTTHLMX.2LMXSM"'.
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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://vaygock.com/newsp/tmp/m.vbs
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
embedded_pdf_script_0000006f.binad55c8e83a5896a04b2012c676820daeab2b84cc539e444c6366e79f55a571c5 |
pdf-embedded-script | PDF decompressed stream script payload at offset 0x6F | 63 bytes |
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