EXECUTIVE SUMMARY:
A campaign targeting Ukrainian governmental and private sector entities. The threat actors employed a combination of social engineering and malware-laden attachments to gain unauthorized access to sensitive systems. The campaign is believed to be part of a broader geopolitical strategy aimed at destabilizing critical infrastructure and eroding public trust in state institutions.
Upon successful execution, the malware establishes a connection with a remote command-and-control (C2) server. This allows the attacker to execute arbitrary commands on the compromised system, facilitating further malicious activities such as data exfiltration, lateral movement within the network, and the deployment of additional payloads. Malware employs encryption to obfuscate its communications, making detection and analysis more challenging.
In conclusion, organizations are strongly advised to implement robust measures, including user training to recognize phishing attempts, regular system updates, and the use of advanced threat detection tools. Prompt application of the provided can aid in identifying and neutralizing the threat. Its adherence to best practices is essential to bolster defenses against such threats.
THREAT PROFILE:
| Tactic | Technique Id | Technique | Sub-technique |
| Initial Access | T1566.001 | Phishing | Spearphishing Attachment |
| T1566.002 | Spearphishing Link | ||
| Execution | T1059.001 | Command and Scripting Interpreter | PowerShell |
| T1059.003 | Windows Command Shell | ||
| Persistence | T1547.001 | Boot or Logon Autostart Execution | Registry Run Keys / Startup Folder |
| T1543.003 | Create or Modify System Process | Windows Service | |
| Defense Evasion | T1027.002 | Obfuscated Files or Information | Software Packing |
| Lateral Movement | T1021.001 | Remote Services | Remote Desktop Protocol (RDP) |
| T1021.002 | SMB/Windows Admin Shares | ||
| Command and Control | T1071.001 | Application Layer Protocol | Web Protocols |
| Exfiltration | T1041 | Exfiltration Over C2 Channel | — |
MBC MAPPING:
| Objective | Behavior ID | Behavior |
| Anti-Behavioral Analysis | B0001 | Debugger Detection |
| Anti-Static Analysis | B0032 | Executable Code Obfuscation |
| Collection | F0002 | Keylogging |
| Command and Control | B0030 | C2 Communication |
| Defense Evasion | F0001 | Software Packing |
| E1055 | Process Injection | |
| Discovery | B0013 | Analysis Tool Discovery |
| Execution | B0011 | Remote Commands |
| Impact | E1486 | Data Encrypted for Impact |
| Persistence | F0012 | Registry Run Keys / Startup Folder |
REFERENCES:
The following reports contain further technical details: