Analysis
- max time kernel
149s - max time network
150s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
16/09/2026, 11:06
General
- Target mb66.property.exe
- Size 3.1MB
- Sample260916-m7mm4azalg
- SHA256 564cfa8be741b7f964ca8854bb02bc901c3d9c07ac5f9b835165869b60644496
Malware Config
Extracted
-
quasar
-
1.4.1
-
Office04
-
mb66.property:443
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www.mb66.property:443
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mb66.property:80
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www.mb66.property:80
-
0385c38c-d43b-43d3-a828-41b90ecb3a6d
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encryption_key
ED3227F773701D05083B11A65776F95F93EEEF5E
-
install_name
Client.exe
-
key_salt
bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941
-
log_directory
Logs
-
reconnect_delay
3000
-
startup_key
Quasar Client Startup
-
subdirectory
SubDir
Signatures
- Family: Quasar RAT
Quasar is an open source Remote Access Tool.
- Quasar payload 2 IoCs
- Executes dropped EXE 2 IoCs
- Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious use of AdjustPrivilegeToken 3 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\mb66.property.exe"C:\Users\Admin\AppData\Local\Temp\mb66.property.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "Quasar Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f2⤵
- Scheduled Task/Job: Scheduled Task
-
-
C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "Quasar Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f3⤵
- Scheduled Task/Job: Scheduled Task
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-
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C:\Users\Admin\AppData\Roaming\SubDir\Client.exeC:\Users\Admin\AppData\Roaming\SubDir\Client.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
Client.exe
memory/1296-8-0x00007FFB3D9D0000-0x00007FFB3E374000-memory.dmp
memory/1296-10-0x00007FFB3D9D0000-0x00007FFB3E374000-memory.dmp
memory/1296-3-0x00007FFB3D9D0000-0x00007FFB3E374000-memory.dmp
memory/1296-4-0x00007FFB3D9D0000-0x00007FFB3E374000-memory.dmp
memory/1296-5-0x00007FFB3D9D0000-0x00007FFB3E374000-memory.dmp
memory/1296-6-0x00007FFB3D9D0000-0x00007FFB3E374000-memory.dmp
memory/1296-2-0x00007FFB3D9D0000-0x00007FFB3E374000-memory.dmp
memory/1296-7-0x00007FFB3D9D0000-0x00007FFB3E374000-memory.dmp
memory/1296-9-0x00007FFB3D9D0000-0x00007FFB3E374000-memory.dmp
memory/1296-22-0x00007FFB3D9D0000-0x00007FFB3E374000-memory.dmp
memory/1296-11-0x00007FFB3D9D0000-0x00007FFB3E374000-memory.dmp
memory/1296-13-0x00007FFB3D9D0000-0x00007FFB3E374000-memory.dmp
memory/1296-14-0x00007FFB3D9D0000-0x00007FFB3E374000-memory.dmp
memory/1296-12-0x00007FFB3D9D0000-0x00007FFB3E374000-memory.dmp
memory/1296-1-0x0000000000010000-0x0000000000334000-memory.dmp
memory/1296-0-0x00007FFB3DB5F000-0x00007FFB3DB60000-memory.dmp
memory/2348-16-0x00007FFB3D9D0000-0x00007FFB3E374000-memory.dmp
memory/2348-19-0x00007FFB3D9D0000-0x00007FFB3E374000-memory.dmp
memory/2348-18-0x00007FFB3D9D0000-0x00007FFB3E374000-memory.dmp
memory/2348-20-0x00007FFB3D9D0000-0x00007FFB3E374000-memory.dmp
memory/2348-17-0x00007FFB3D9D0000-0x00007FFB3E374000-memory.dmp
memory/2348-23-0x00007FFB3D9D0000-0x00007FFB3E374000-memory.dmp
memory/2348-21-0x00007FFB3D9D0000-0x00007FFB3E374000-memory.dmp
memory/2348-24-0x00007FFB3D9D0000-0x00007FFB3E374000-memory.dmp
memory/2348-25-0x00007FFB3D9D0000-0x00007FFB3E374000-memory.dmp
memory/2348-26-0x00007FFB3D9D0000-0x00007FFB3E374000-memory.dmp
memory/2348-27-0x00007FFB3D9D0000-0x00007FFB3E374000-memory.dmp
memory/2348-28-0x00007FFB3D9D0000-0x00007FFB3E374000-memory.dmp
memory/2348-29-0x00007FFB3D9D0000-0x00007FFB3E374000-memory.dmp
memory/2348-30-0x00007FFB3D9D0000-0x00007FFB3E374000-memory.dmp
memory/2348-32-0x000000001D310000-0x000000001D360000-memory.dmp
memory/2348-33-0x000000001D420000-0x000000001D4D2000-memory.dmp
memory/2348-34-0x00007FFB3D9D0000-0x00007FFB3E374000-memory.dmp