How crack this hash?

[brother_hash]

I have this hash md5(md5($salt).md5(md5($pass))). And i don know how crack it

Code:

88exxxxca2a012xxxad501fxxx9baxxd:r6I<~

[several hashes removed by philsmd (see forum rules)]

[Mem5]

Do not post hashes!

According to https://hashcat.net/wiki/doku.php?id=example_hashes this algorithm is not supported.