has downloaded additional files including by using a first-stage downloader to contact the C2 server to obtain the second-stage implant.(Citation: Bitdefender APT28 Dec 2015)(Citation: Unit 42 Playbook Dec 2017)(Citation: Accenture SNAKEMACKEREL Nov 2018)(Citation: TrendMicro Pawn Storm Dec 2020)
Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request. ### Instruction: List the MITRE techniques contained in the text. ### Input: has downloaded additional files including by using a first-stage downloader to contact the C2 server to obtain the second-stage implant.(Citation: Bitdefender APT28 Dec 2015)(Citation: Unit 42 Playbook Dec 2017)(Citation: Accenture SNAKEMACKEREL Nov 2018)(Citation: TrendMicro Pawn Storm Dec 2020) ### Response: T1105.