You have executable-can-move checked in DllCharacteristic and relocations are present, thus windows7+ loads the executable at a random address, imagebase is just the preferred address. But as you can see in the opcodes you are hardcoding your VA, which will then be invalid.
Better to choose a relative jump directly, which doesnt encode an absolute VA but rather the location relative to the current address. Use the following and avoid all issues with location of the executable:
000000013F44D000 E9 FB3FFEFF jmp 13F431000
If you are wondering how to get “FB3FFEFF”:
(0x000000013F44D000 – 114693) + 5 –> FB3FFEFF
where 0x000000013F44D000 is the current address, 114693 is the difference to the new location and 5 the size of the jump instruction itself.
To find the entrypoint, search for [STAThread] in the koi.exe with the DnSpy and copy the token. Go to .NET Directory, EntryPointToken in CFF Explorer and change the token with the one you have copied.
Entrypoint Fixed: https://mir.cr/R2GLH8AQ
Download link to software: https://mir.cr/0KZBHNCT
My patched file: https://mir.cr/0QFYMGUR
You need to open software once and skip sign up intro page and replace the file with the existing one.
Tested a bit, no problems met.
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