Analysis
- max time kernel
142s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20230703-en - resource tags
- submitted
08/07/2023, 16:31
General
- Target 16888128718a66611c1d86e12.exe
- Size 348KB
- Sample230708-t1gltsfe38
- SHA256 b8eda4e9e691fe7017981cea833b63299ea6b89e08f3995b630cf705a393d16b
Malware Config
Extracted
-
quasar
-
1.3.0.0
-
Office04
-
qrss.duckdns.org:54790
-
QSR_MUTEX_zlSKJvcuVjgb1gOk4J
-
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 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\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
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Downloads
memory/3576-133-0x00000000003F0000-0x000000000044E000-memory.dmp
memory/3576-134-0x00000000053B0000-0x0000000005954000-memory.dmp
memory/3576-135-0x0000000004EA0000-0x0000000004F32000-memory.dmp
memory/3576-136-0x0000000004F40000-0x0000000004F50000-memory.dmp
memory/3576-137-0x0000000005050000-0x00000000050B6000-memory.dmp
memory/3576-138-0x0000000005380000-0x0000000005392000-memory.dmp
memory/3576-139-0x0000000006060000-0x000000000609C000-memory.dmp
memory/3576-141-0x00000000063E0000-0x00000000063EA000-memory.dmp
memory/3576-142-0x0000000004F40000-0x0000000004F50000-memory.dmp