has sent malicious Office documents via email as part of spearphishing campaigns as well as executables disguised as documents.(Citation: PWC Cloud Hopper Technical Annex April 2017)(Citation: FireEye APT10 April 2017)(Citation: FireEye APT10 Sept 2018)
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 sent malicious Office documents via email as part of spearphishing campaigns as well as executables disguised as documents.(Citation: PWC Cloud Hopper Technical Annex April 2017)(Citation: FireEye APT10 April 2017)(Citation: FireEye APT10 Sept 2018) ### Response: T1566.001.