They occasionally post the official solution keys for past CTF challenges.
A comprehensive guide covering the Image Forensics questions related to this file. New_Dad_Cleans-Up.7z
The "paper" or documentation you are looking for is likely the for this image forensics category. Because this was a competition file rather than an academic dataset, there is no formal peer-reviewed research paper; instead, the relevant documentation consists of walkthroughs that explain how to extract and analyze the data within the archive. Challenge Details Event: Magnet User Summit CTF 2021. Category: Image Forensics / OSINT. They occasionally post the official solution keys for
Participants were tasked with analyzing the contents of the .7z archive (often containing a mobile or desktop image) to answer specific questions about a "New Dad" character’s activities, such as locations visited or digital traces left behind. Where to Find the "Paper" (Write-ups) Because this was a competition file rather than
You can find detailed step-by-step solutions and analysis of this specific file on community forensics sites: