Analysis
- max time kernel
121s - max time network
137s - platform
windows7_x64 - resource
win7-20230831-en - resource tags
- submitted
02/10/2023, 11:50
General
- Target xBqAmJwby407.exe
- Size 348KB
- Sample231002-nzkn7sbf55
- SHA256 d8fadff5429d00e94828f23f7549ceacfce82d0d59947b2b77b45937ad2db363
Score
10/10
Malware Config
Extracted
Family
-
quasar
Version
-
1.3.0.0
Botnet
-
OS_VPN
C2
-
crazydns.linkpc.net:3000
Mutex
-
QSR_MUTEX_J2Voi6wIDTtyaUyHAn
Attributes
-
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
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Downloads
memory/2348-0-0x0000000001190000-0x00000000011EE000-memory.dmp
memory/2348-1-0x0000000074BC0000-0x00000000752AE000-memory.dmp
memory/2348-2-0x0000000004B80000-0x0000000004BC0000-memory.dmp
memory/2348-4-0x0000000074BC0000-0x00000000752AE000-memory.dmp
memory/2348-5-0x0000000004B80000-0x0000000004BC0000-memory.dmp