Analysis
- max time kernel
70s - max time network
140s - platform
windows7_x64 - resource
win7-20230703-en - resource tags
- submitted
08/07/2023, 16:31
General
- Target 16888128718a66611c1d86e12.exe
- Size 348KB
- Sample230708-t1g8csfe39
- SHA256 b8eda4e9e691fe7017981cea833b63299ea6b89e08f3995b630cf705a393d16b
Score
10/10
Malware Config
Extracted
Family
-
quasar
Version
-
1.3.0.0
Botnet
-
Office04
C2
-
qrss.duckdns.org:54790
Mutex
-
QSR_MUTEX_zlSKJvcuVjgb1gOk4J
Attributes
-
encryption_key
vUOWxZSgsTmyyUM9Rgsw
-
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 payload 2 IoCs
- Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\16888128718a66611c1d86e12.exe"C:\Users\Admin\AppData\Local\Temp\16888128718a66611c1d86e12.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Matrix
Replay Monitor
Loading Replay Monitor...
Downloads
memory/2868-54-0x0000000001050000-0x00000000010AE000-memory.dmp
memory/2868-55-0x0000000000B20000-0x0000000000B60000-memory.dmp
memory/2868-57-0x0000000000B20000-0x0000000000B60000-memory.dmp