: If a script is found, manually decode the Base64 strings to reveal the final intent, which usually involves credential theft or remote access. [2, 6]
The analysis typically involves the following steps found in successful write-ups: Im.On.Merrymaking.Watch.rar
: Use of Base64 encoding or character replacement to hide commands like IEX (Invoke-Expression). [5] : If a script is found, manually decode
: Based on these findings, the file is classified as Malicious . [1, 3] Solution Strategy [1, 3] Solution Strategy : The RAR file
: The RAR file contains a Windows Shortcut (.LNK) or a highly obfuscated script (often PowerShell or VBScript) disguised as a harmless document. [4, 5] Malicious Indicators :
: Attempts to modify registry keys or add files to the Startup folder. [4]
In the context of the challenge, this RAR archive represents a suspicious file sent to an employee. The goal is to perform a forensic analysis to identify signs of a attack. [3, 4] Technical Breakdown