Tajin Group: Guarantee Marketplace Vendor Involved in Phishing and Chinese Money Laundering Group
Brief
Executive Summary
This report provides insights and analysis to better understand the role of third-party vendors and guarantee marketplaces from the perspective of Tajin Group, a third-party vendor that advertises and provides services on two Telegram-based Chinese-language guarantee marketplaces, Dabai Guarantee and Xinbi Guarantee.
This includes operational challenges, perspectives regarding the competition from other threat groups, and how Tajin Group adapts to changes in its operating environment.
Additionally, we identified that Chinese-language guarantee marketplace users and third-party vendors are increasingly using third-party services to purchase and sell Telegram usernames and anonymous virtual numbers. Through these services, Chinese-speaking criminals can link multiple Telegram usernames and an anonymous virtual number (in lieu of SIM cards) to a single Telegram account.