Matryoshka - S0167 (1cc934e4-b01d-4543-a011-b988dfc1a458)
Matryoshka is a malware framework used by CopyKittens that consists of a dropper, loader, and RAT. It has multiple versions; v1 was seen in the wild from July 2016 until January 2017. v2 has fewer commands and other minor differences. (Citation: ClearSky Wilted Tulip July 2017) (Citation: CopyKittens Nov 2015)