FireEye examined the original file ERFT-Details.xls , which was observed with at least two unique MD5 file hashes: Figure 2: Screenshot of VBA code from System.doc  Upon closing the spreadsheet, a final VBA function will rename System.doc to System Manager.exe 
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: FireEye examined the original file ERFT-Details.xls , which was observed with at least two unique MD5 file hashes: Figure 2: Screenshot of VBA code from System.doc  Upon closing the spreadsheet, a final VBA function will rename System.doc to System Manager.exe  ### Response: .