Analysis
- max time kernel
148s - max time network
149s - platform
windows7_x64 - resource
win7-20240220-en - resource tags
- submitted
14/03/2024, 02:26
General
- Target 65ff539e02c7cd85a96be341b2694b52b5258caecdaa603af9f280934c3cdac4.exe
- Size 3.1MB
- Sample240314-cxdmbsaf49
- SHA256 65ff539e02c7cd85a96be341b2694b52b5258caecdaa603af9f280934c3cdac4
Score
10/10
Malware Config
Extracted
Family
-
quasar
Version
-
1.4.1
Botnet
-
Office04
C2
-
118.195.235.103:4782
Mutex
-
71dd960d-f68a-4c48-b005-1abc3acf8e9b
Attributes
-
encryption_key
87D90725875D825BD5FEC46A2A0B3CE8E2716E58
-
install_name
Windows 任务的主机进程.exe
-
log_directory
Logs
-
reconnect_delay
3000
-
startup_key
Windows 驱动程序基础 - 用户模式驱动程序框架主机进程
-
subdirectory
SubDir
Signatures
- Quasar RAT
Quasar is an open source Remote Access Tool.
- Quasar payload 1 IoCs
- Detects Windows executables referencing non-Windows User-Agents 1 IoCs
- Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 1 IoCs
- Detects executables containing common artifacts observed in infostealers 1 IoCs
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
- Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
-
C:\Users\Admin\AppData\Local\Temp\65ff539e02c7cd85a96be341b2694b52b5258caecdaa603af9f280934c3cdac4.exe"C:\Users\Admin\AppData\Local\Temp\65ff539e02c7cd85a96be341b2694b52b5258caecdaa603af9f280934c3cdac4.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\system32\schtasks.exe"schtasks" /create /tn "Windows 驱动程序基础 - 用户模式驱动程序框架主机进程" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Windows 任务的主机进程.exe" /rl HIGHEST /f2⤵
- Creates scheduled task(s)
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
memory/2912-0-0x0000000001000000-0x0000000001324000-memory.dmp
memory/2912-1-0x000007FEF5570000-0x000007FEF5F5C000-memory.dmp
memory/2912-2-0x000000001B4C0000-0x000000001B540000-memory.dmp
memory/2912-3-0x000007FEF5570000-0x000007FEF5F5C000-memory.dmp
memory/2912-4-0x000000001B4C0000-0x000000001B540000-memory.dmp