General
- Target common.dat.exe
- Size 13.2MB
- Sample260518-tlkpyabw7m
- SHA256 c488f37dc1629daa72df9f42876bfe9c213bedfbe10dea5ef54bb4b410e5528e
Score
10/10
Malware Config
Targets
-
- Target common.dat.exe
- Size 13.2MB
- SHA256 c488f37dc1629daa72df9f42876bfe9c213bedfbe10dea5ef54bb4b410e5528e
Score10/10Family: Efimer
Efimer is a trojan written in JS.
Command and Scripting Interpreter: PowerShell
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
Command and Scripting Interpreter: PowerShell
Using powershell.exe command.
Checks computer location settings
Looks up country code configured in the registry, likely geofence.
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
Infostealers often target stored browser data, which can include saved credentials etc.
Accesses cryptocurrency files/wallets, possible credential harvesting
Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
3JavaScript
1PowerShell
2Scheduled Task/Job
1Scheduled Task
1