How to get Corners of Bounding Box?

I have created Object3D and Added four cube geometry inside it and calculated the bounding box for Object3D which holds four cube objects and use BoxHelper to see if the bounding Box is working it is working. now I want all corners(i.e xyz, coordinates of corner) of the bounding box .

Basically, I am trying to achieve explode and implode effect where my four cubes reach four corners of the bounding box from an initial position of the center of the bounding box.


thank you, @marquizzo this definitely helps I tried different methods but nothing works thank you so much