/usr/ is in libghc-monadcryptorandom-prof 0.5.3-1build1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/
/usr/lib/haskell-packages/
/usr/lib/haskell-packages/ghc/
/usr/lib/haskell-packages/ghc/lib/
/usr/lib/haskell-packages/ghc/lib/monadcryptorandom-0.5.3/
/usr/lib/haskell-packages/ghc/lib/monadcryptorandom-0.5.3/ghc-7.6.3/
/usr/lib/haskell-packages/ghc/lib/monadcryptorandom-0.5.3/ghc-7.6.3/Control/
/usr/lib/haskell-packages/ghc/lib/monadcryptorandom-0.5.3/ghc-7.6.3/Control/Monad/
/usr/lib/haskell-packages/ghc/lib/monadcryptorandom-0.5.3/ghc-7.6.3/Control/Monad/CryptoRandom.p_hi
/usr/lib/haskell-packages/ghc/lib/monadcryptorandom-0.5.3/ghc-7.6.3/libHSmonadcryptorandom-0.5.3_p.a
/usr/share/
/usr/share/doc/
/usr/share/doc/libghc-monadcryptorandom-prof/
/usr/share/doc/libghc-monadcryptorandom-prof/copyright
/usr/share/doc/libghc-monadcryptorandom-prof/changelog.Debian.gz