Name of the software used for the given animation
The short film, Wildebeest was rendered in Adobe After Effects and Flash.

This is the quote from an interview by the director Ant Blades.
"The film is animated in Flash and AfterEffects. The main aim was to be funny. The secondary aim was to develop a style I hadn’t tried before."
Source:"Filmmaker Ant Blades, Wildebeest"

Workflow of Mr Blades is to first sketch in Adobe Flash. As he puts it, it is an easy way to sketch out an "animatic" of an idea. He then renders it with After Effects, I assume he would be using the plug-in Cinema 4D to render the 3D work but that is a guess on my part. A more complete interview and the process in how he creates his works for Bird Box Studio. "Interview Ant Blades, Bird Box Studio"