There appears to be a unique string amongst these hashes.. i've found quite a few 4 / 5 / 6 digit prefix ones..
if someone with a better setup could try this for the OP..
would appear mostly to be UPPER followed by !"§ (some odd lowercase which in this context seems odd.. )
hashcat -m 0 hashes.txt -1 ?u?l -a3 ' ?1!"§'
and then work your way up
?1?1
?1?1?1
?1?1?1?1
etc..
thx