(EncryptHub) is a threat actor that has come to the forefront with highly sophisticated spear-phishing attacks since 26 June 2024. In the attacks it has carried out, it exhibits a different operational strategy by carrying out all the processes necessary to obtain initial access through personalized SMS (smishing) or by calling the person directly (vishing) and tricking the victim into installing remote monitoring and management (RMM) software. When investigating the attacks carried out by the threat actor, it is evident that their social engineering techniques and persuasion skills are highly effective.
In the first phase, the actor usually creates a phishing site that targets the organization to obtain the victim's VPN credentials. The victim is then called and asked to enter the victim's details into the phishing site for technical issues, posing as an IT team or helpdesk. If the attack targeting the victim is not a call but a direct SMS text message, a fake Microsoft Teams link is used to convince the victim. After gaining access from the victim, the team runs various stealers on the compromised machine using the PowerShell