/usr/lib/mysql-workbench/modules/wb.model.grt.so is in mysql-workbench 6.2.3+dfsg-7.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/mysql-workbench/modules/wb.model.grt.so.6.2.3
/usr/lib/mysql-workbench/modules/wb.model.grt.so.6.2.3