/usr/lib/linux-tools/4.15.0-1013-oem/perf is in linux-tools-4.15.0-1013-oem 4.15.0-1013.16.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/linux-tools/4.15.0-1013-oem/../../linux-oem-tools-4.15.0-1013/perf