The file is a challenge component from the 2023 SANS Holiday Hack Challenge (KringleCon) . It is specifically associated with the "Reportinator" objective, where players must analyze a "phishing" artifact to determine if it is malicious. [1, 2] Challenge Overview
: Run strings on the extracted files to find hidden URLs or PowerShell commands. [5]
: Unpack the RAR in a safe, sandboxed environment (like the Flare-VM or a Linux terminal). Im.On.Merrymaking.Watch.rar
: 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 :
: The script attempts to reach out to a suspicious domain or IP address (e.g., northpole-logistics.com ) to download a secondary payload. [2, 6] The file is a challenge component from the
: Use of Base64 encoding or character replacement to hide commands like IEX (Invoke-Expression). [5]
The analysis typically involves the following steps found in successful write-ups: [5] : Unpack the RAR in a safe,
: 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]