3DM is a known Chinese cracking group that releases "cracked" versions of games. While FIFA 14 was officially released in 2013, any modified executable from unofficial sources:

The file name fifa143dmexe does not correspond to any official FIFA game file from EA Sports. Official FIFA game executables follow naming conventions like FIFA14.exe, FIFA15.exe, FIFA16.exe, etc. The string "143dm" is not a standard EA identifier.

This file is highly likely to be one of the following:

Downloading and running unverified .exe files from third-party websites exposes your system to:

If you are looking for the fifa14.exe file associated with the 3DM crack, you are likely trying to get your game running on a PC without the need for an official license key. The "3DM" version is one of the most well-known cracks for FIFA 14, often used to bypass the Origin verification process.

Here is a quick guide on the file and how to use it safely.

While the promise of a working game is tempting, downloading a standalone .exe file from a random forum or file-hosting site is highly risky.