/usr/arm-linux-gnueabihf/libsf/libmudflapth.so.0 is in libsfmudflap0-armhf-cross 4.8.1-10ubuntu7cross0.10.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/arm-linux-gnueabihf/libsf/libmudflapth.so.0.0.0