Cooper utilizes cooperative mutation to test the binding code
of scripting languages to find memory-safe issues. Cooperative
mutation simultaneously modifies the script code and the related
document objects to explore various code paths of the binding code.
To support cooperative mutation, the authors infer the relationship
between script code and document objects to guide the
two-dimensional mutation. They applied their tool Cooper on three
popular commercial PDF tools, Adobe Acrobat, Foxit Reader, and
Microsoft Word. Cooper detected 134 previously unknown bugs, which
resulted in 33 CVE entries and 22K bug bounties.
Read more https://packetstormsecurity.com/files/167161/Cooper-master.zip