/usr/lib/x86_64-linux-gnu/libx86emu.so is in libx86emu-dev 1.12-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libx86emu.so.1
/usr/lib/x86_64-linux-gnu/libx86emu.so.1