Analysis
- max time kernel
137s - max time network
158s - platform
windows7_x64 - resource
win7-20241010-en - resource tags
- submitted
22/03/2025, 20:31
General
- Target 85d0793219eb0fac73bf85eade28e6ed1d676ec16ff8c01eacf13994f3267896.exe
- Size 502KB
- Sample250322-zaqppszvbx
- SHA256 85d0793219eb0fac73bf85eade28e6ed1d676ec16ff8c01eacf13994f3267896
Malware Config
Extracted
-
quasar
-
1.4.0
-
Office04
-
free.svipss.top:37263
-
499e1307-c938-406c-8031-c021ba04640f
-
encryption_key
4111EB4E3452F3046C6F5DFE90F84F08D3E1BB9C
-
install_name
Client.exe
-
log_directory
Logs
-
reconnect_delay
3000
-
startup_key
Quasar Client Startup
-
subdirectory
SubDir
Signatures
- Quasar RAT
Quasar is an open source Remote Access Tool.
- Quasar family
- Quasar payload 3 IoCs
- Executes dropped EXE 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious use of AdjustPrivilegeToken 2 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\85d0793219eb0fac73bf85eade28e6ed1d676ec16ff8c01eacf13994f3267896.exe"C:\Users\Admin\AppData\Local\Temp\85d0793219eb0fac73bf85eade28e6ed1d676ec16ff8c01eacf13994f3267896.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"2⤵
- Executes dropped EXE
- 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
Client.exe
memory/2196-7-0x0000000000170000-0x00000000001F4000-memory.dmp
memory/2196-8-0x000007FEF5F60000-0x000007FEF694C000-memory.dmp
memory/2196-9-0x000007FEF5F60000-0x000007FEF694C000-memory.dmp
memory/2196-11-0x000007FEF5F60000-0x000007FEF694C000-memory.dmp
memory/2836-0-0x000007FEF5F63000-0x000007FEF5F64000-memory.dmp
memory/2836-1-0x0000000000AD0000-0x0000000000B54000-memory.dmp
memory/2836-2-0x000007FEF5F60000-0x000007FEF694C000-memory.dmp
memory/2836-10-0x000007FEF5F60000-0x000007FEF694C000-memory.dmp