Hiya, you will prob find the blue is positive and black is negative correct, and the other wires are some sort of current limiting sensing signals from the pcb to determin when the max and minimum have been reached.

if you have access to a PSU that allows you to limit current, try probing these wires to see if it moves, the PSU should stop any damage to motor and source.

What vehicle did you get this from?

I wouldnt use your ESC yet until correctly determined the wire combo.

You may be able to adapt the signals to control a max and minimum of the ram for your bot?