Unsupported format (md5($salt.$pass) / Wordpress)?
#1
I'd like to audit some Worpress hashes. Hash format is 00112233445566778899aabbccddeeff:0011. According to documentation, it's format is md5($salt.$pass), AKA phpass. A quick test with JtR show that the format is correct: known test hashes are successfully cracked (using --format=phpass).

Using hashcat, the hashes are not accepted:
Is it possible to convert my hashes to m=400 of m=20? Perhaps any other options? Thanks!
#2
Very old wordpress used raw MD5 instead of phpass. You can not convert between them. If you use -m 20, it's perfectly fine to use shorter salts than the one shown in the example hash page. This is just an example.