I dunno, can't help with encryption related questions.
Because the moment you enter or leave a match the game stores the current level at a new address. Sometimes it also happening mid game So even if you do refine it won't be the correct value because the real values changed already address as you can see in the video:
mobizen_20230412_045809.mp4
You can either install old version of the game and edit the atck file because text is readable or you can do a group search from in the lobby.
Group search exist out of current level -1 and the points you get when placing blocks.
First go in a match, don't finish the level. Remember the state of the points you had for lay blocks. In my case i returned to home screen when state of points was on 5. And my current level is 10,007 - 1. So group search is:
10,006D;5D::17