Not physically accurate but should be passable in a background. All the detail on the box itself is in the texture, like the panels and locks. Most of the geometry is in the rounded objects for smoothness. Everything from scratch. The texture on the wall is just made with nodes. Set up for Cycles.
Used it for this project:
http://blenderartists.org/forum/showthread.php?388016
Updated. Normal map actually showing up now :)