Analysis
- max time kernel
144s - max time network
144s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
- submitted
15/01/2025, 18:36
General
- Target ez.exe
- Size 839KB
- Sample250115-w9dmmssner
- SHA256 b4bf24f85ba5a379df9524e257de8b193b136bef644c83a0723013cfb107e066
Malware Config
Signatures
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 1 IoCs
- Drops desktop.ini file(s) 2 IoCs
- Drops file in Windows directory 3 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 45 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of SendNotifyMessage 1 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\ez.exe"C:\Users\Admin\AppData\Local\Temp\ez.exe"1⤵
- Checks computer location settings
- Drops desktop.ini file(s)
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe"C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
AudioDriver.exe
memory/1980-0-0x0000000074A22000-0x0000000074A23000-memory.dmp
memory/1980-1-0x0000000074A20000-0x0000000074FD1000-memory.dmp
memory/1980-2-0x0000000074A20000-0x0000000074FD1000-memory.dmp
memory/1980-18-0x0000000074A20000-0x0000000074FD1000-memory.dmp
memory/2228-19-0x0000000074A20000-0x0000000074FD1000-memory.dmp
memory/2228-21-0x0000000074A20000-0x0000000074FD1000-memory.dmp
memory/2228-20-0x0000000074A20000-0x0000000074FD1000-memory.dmp
memory/2228-22-0x0000000074A20000-0x0000000074FD1000-memory.dmp