PDF malware analysis — malicious · 7611f82d13efa4de

MALICIOUS

PDF

785 B

MD5: c663c9dcca6845357a41249e3a34b70e SHA-1: 5cc4c9e2a66ff5a4b97a7fceb6a25d378d9c97de SHA-256: 7611f82d13efa4dee36c38d439a67d40f6bd5e876a278da1dc2974769f65173a

120 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1059.003 Windows Command Shell

The PDF file contains a launch action that executes a command-line interface command. This command attempts to create a VBScript file named 'm.vbs' and uses obfuscated strings to instantiate 'Scripting.FileSystemObject' and 'WScript.Shell'. The embedded URL 'http://mneznel.co.cc/x/img.php?d=1' is likely used to download the malicious payload. The script's intent is to download and execute a second-stage payload.

Heuristics 4

Launch action high PDF_LAUNCH

PDF contains a /Launch action with an unresolved or extension-less target — treat as potentially dangerous
Embedded script payload in PDF stream high PDF_EMBEDDED_SCRIPT_PAYLOAD

PDF 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.
/Launch action target: cmd high PDF_LAUNCH_COMMAND

PDF /Launch action specifies an executable target with parameters '/c echo B="m.vbs":With CreateObject(StrReverse("PTTHLMX.2LMXSM"'.
Embedded URL info EMBEDDED_URL

One 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://mneznel.co.cc/x/img.php?d=1

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_pdf_script_00000067.bin` `ad55c8e83a5896a04b2012c676820daeab2b84cc539e444c6366e79f55a571c5`	pdf-embedded-script	PDF decompressed stream script payload at offset 0x67	63 bytes

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