Tuesday, April 18, 2017

ShadowBrokers EquationGroup Compilation Timestamp Observation

I looked at the IOCs @GossiTheDog ‏posted, looked each up in virus total and dumped the compilation timestamp into a spreadsheet.

To step back a second, the Microsoft Windows compiler embeds the date and time that the given .exe or .dll was compiled. Compilation time is a very useful characteristic of Portable Executable. Malware authors could zero it or change it to a random value, but I'm not sure there is any indication of that here. If the compilation timestamps are real, then there's an interesting observation in this dataset.

Virus total shows you this value for example.



If you notice, the files in the dump range from 11/2009 to 8/2013.



And if you throw it into a pretty little graph you see a possible timeline of exploit creation.



Just an observation.



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