/usr/lib/ghc-doc/hoogle/random.txt is in libghc-random-doc 1.0.1.1-3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/ghc-doc/hoogle/../../../share/doc/libghc-random-doc/html/random.txt
/usr/lib/ghc-doc/hoogle/../../../share/doc/libghc-random-doc/html/random.txt