Sublist3r is a python tool designed to enumerate subdomains of websites using OSINT. It helps penetration testers and bug hunters collect and gather subdomains for the domain they are targeting. Sublist3r enumerates subdomains using many search engines such as Google, Yahoo, Bing, Baidu, and Ask.
OSRFramework is a set of libraries to perform Open Source Intelligence tasks. They include references to a bunch of different applications related to username checking, DNS lookups, information leaks research, deep web search, regular expressions extraction, and many others. At the same time, by means of ad-hoc Maltego transforms, OSRFramework provides a way of making these queries graphically as well as several interfaces to interact with like OSRFConsole or a Web interface.
CaseFile is the little brother to Maltego. It targets a unique market of 'offline' analysts whose primary sources of information are not gained from the open-source intelligence side or can be programmatically queried. We see these people as investigators and analysts who are working 'on the ground', getting intelligence from other people in the team and building up an information map of their investigation.