How can I map CMD key to CTRL key for just one specific app?

I use a VNC client regularly at work. I want to map CMD to CTRL just for that application (so than I can use familiar shortcuts such as CMD-C/CMD-V in the remote Linux machine). Is there any way to do that? I tried googling but did not find any solution so far.

Thanks in advance,

I believe this can be done with Karabiner Elements. See this thread and also this thread (the latter link is to the Keyboard Maestro forum, but the solution suggested there is to use Karabiner Elements).