Analysis
- max time kernel
146s - max time network
153s - platform
windows10-2004_x64 - resource
win10v2004-20230703-en - resource tags
- submitted
09/07/2023, 11:00
General
- Target 16888128718a66611c1d86e12.exe
- Size 348KB
- Sample230709-m37sgacd69
- 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/3396-133-0x0000000000850000-0x00000000008AE000-memory.dmp
memory/3396-134-0x0000000005890000-0x0000000005E34000-memory.dmp
memory/3396-135-0x00000000052E0000-0x0000000005372000-memory.dmp
memory/3396-136-0x0000000005400000-0x0000000005410000-memory.dmp
memory/3396-137-0x0000000005380000-0x00000000053E6000-memory.dmp
memory/3396-138-0x00000000060A0000-0x00000000060B2000-memory.dmp
memory/3396-139-0x00000000064C0000-0x00000000064FC000-memory.dmp
memory/3396-141-0x0000000006850000-0x000000000685A000-memory.dmp
memory/3396-142-0x0000000005400000-0x0000000005410000-memory.dmp