/usr/aarch64-linux-gnu/bin/ld is in binutils-aarch64-linux-gnu 2.26-8ubuntu2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/aarch64-linux-gnu/bin/../../bin/aarch64-linux-gnu-ld
/usr/aarch64-linux-gnu/bin/../../bin/aarch64-linux-gnu-ld