has used weaponized documents attached to spearphishing emails for reconnaissance and initial compromise.(Citation: Kaspersky Cloud Atlas December 2014)(Citation: Symantec Inception Framework March 2018)(Citation: Unit 42 Inception November 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 used weaponized documents attached to spearphishing emails for reconnaissance and initial compromise.(Citation: Kaspersky Cloud Atlas December 2014)(Citation: Symantec Inception Framework March 2018)(Citation: Unit 42 Inception November 2018) ### Response: T1566.001.