/etc/Crack/rules.perm7u is in crack-common 5.0a-11.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2
/lsl1/oso0/isi1/ese3/asa2/sss$/hsh4u /lsl1/oso0/isi1/ese3/sss$/asa4/hsh4u