What if the password is written in runic?
Hashcat can find the password in this case?
Hashcat can bruteforce any input bytes, so theoretically yes.
The
brute-force attack mode allows the use of ?b which are all the bytes 0x00 through 0xff. So that would be a way, although probably very inefficient.
The graphical representation of the letters does not matter. in the end they match to certain letter, eg. see here:
https://www.fontspace.com/kineticplasma-fonts/stormning
You can write something in "Change preview" to see it.
So nothing different from what we know.
Of course, you have to include in your keyspace alphabet the represenations of special characters.
As DanielG said, as soon as the graphical letters have a hexa representation between 0x00 to 0xff it can be reached by hashcat thanks to ?b.
You can also use --hex-charset to fine-tune the search space