Retefe
Intelligence Profile
The Android app using for Retefe is a SMS stealer, used to forward mTAN codes to the threat actor. Further is a bank logo added to the specific Android app to trick users into thinking this is a legitimate app. Moreover, if the victim is not a real victim, the link to download the APK is not the malicious APK, but the real 'Signal Private Messenger' tool, hence the victim's phone doesn't get infected.
Threat Analysis
Retefe is a high-sophistication threat actor of undetermined national origin, engaged in cyber operations with a primary motivation of financial.
Financially motivated threat actors like Retefe prioritize monetary gain through methods such as ransomware deployment, banking trojans, cryptocurrency theft, BEC scams, or credential harvesting for resale on underground markets.
With high sophistication, Retefe is capable of targeted intrusions using adapted commodity tools alongside custom implants, maintaining operational security and evading standard detection mechanisms.