I did this about three years ago, all with blender, sequencer, and photoshop CS for basic textures as needed.
I found that the company posted it on youtube a little while ago, and so am sharing it here. There’s no audio.
I recently re-rendered it in 720p for them last week, after making a few minor fixes and improvements.
This is one of the first ‘real’ animations I did myself, with Blender.