Hashcat: Custom Mask

Predefined charsets:

?l = abcdefghijklmnopqrstuvwxyz
?u = ABCDEFGHIJKLMNOPQRSTUVWXYZ
?d = 0123456789
?s = «space»!"#$%&'()*+,-./:;<=>?@[\]^_`{|}~
?a = ?l?u?d?s
?b = 0x00 - 0xff

Company name = 'Corp' in this example

mask.txt
cC,?1orp?a
cC,?1orp?a?a
cC,?1orp?a?a?a
cC,?1orp?a?a?a?a
cC,?1orp?a?a?a?a?a
hashcat -m 1000 hashes_dump -a 3 mask.txt
mask.txt
cC,?1orp?d?d?d?d?s
cC,?1orp?d?d?d?d?s?s
cC,?1orp?d?d?d?d?s?s?s
cC,?1orp?d?d?d?d?s?s?s?s
cC,?1orp?d?d?d?d?s?s?s?s?s
mask.txt
cC,?1orp20?d?d?s
cC,?1orp20?d?d?s?s
cC,?1orp20?d?d?s?s?s
cC,?1orp20?d?d?s?s?s?s
cC,?1orp20?d?d?s?s?s?s?s

More examples:

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