Analysis
- max time kernel
117s - max time network
171s - platform
windows10-2004_x64 - resource
win10v2004-20230915-en - resource tags
- submitted
02/10/2023, 11:50
General
- Target xBqAmJwby407.exe
- Size 348KB
- Sample231002-nzkn7sbf55
- SHA256 d8fadff5429d00e94828f23f7549ceacfce82d0d59947b2b77b45937ad2db363
Malware Config
Extracted
-
quasar
-
1.3.0.0
-
OS_VPN
-
crazydns.linkpc.net:3000
-
QSR_MUTEX_J2Voi6wIDTtyaUyHAn
-
encryption_key
jNLefTNbVuTwEDcSyKGn
-
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 1 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\xBqAmJwby407.exe"C:\Users\Admin\AppData\Local\Temp\xBqAmJwby407.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Matrix
Replay Monitor
Loading Replay Monitor...
Downloads
memory/4072-0-0x00000000747C0000-0x0000000074F70000-memory.dmp
memory/4072-1-0x00000000006F0000-0x000000000074E000-memory.dmp
memory/4072-2-0x0000000005680000-0x0000000005C24000-memory.dmp
memory/4072-3-0x0000000005170000-0x0000000005202000-memory.dmp
memory/4072-4-0x0000000005090000-0x00000000050A0000-memory.dmp
memory/4072-5-0x0000000005510000-0x0000000005576000-memory.dmp
memory/4072-6-0x0000000006120000-0x0000000006132000-memory.dmp
memory/4072-7-0x00000000065A0000-0x00000000065DC000-memory.dmp
memory/4072-9-0x0000000006920000-0x000000000692A000-memory.dmp
memory/4072-10-0x00000000747C0000-0x0000000074F70000-memory.dmp
memory/4072-11-0x0000000005090000-0x00000000050A0000-memory.dmp