Analysis
- max time kernel
150s - max time network
154s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
30/09/2026, 10:57
General
- Target mb66pro.net.exe
- Size 3.1MB
- Sample260930-m2fbts1gqb
- SHA256 a2a64b96cdd2b3bdedef56861e2b29c6ab6fc83e57f34480699ab6d03d733003
Malware Config
Extracted
-
quasar
-
1.4.1
-
Office04
-
mb66pro.net:443
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www.mb66pro.net:443
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mb66pro.net:80
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www.mb66pro.net:80
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b3f602b3-23a3-49d8-a089-d135087f3587
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encryption_key
ED3227F773701D05083B11A65776F95F93EEEF5E
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install_name
Client.exe
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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 1 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 2 IoCs
- Suspicious use of WriteProcessMemory 2 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\mb66pro.net.exe"C:\Users\Admin\AppData\Local\Temp\mb66pro.net.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
-
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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C:\Users\Admin\AppData\Roaming\SubDir\Client.exeC:\Users\Admin\AppData\Roaming\SubDir\Client.exe1⤵
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
Client.exe
memory/1876-27-0x00007FF90FDC0000-0x00007FF910764000-memory.dmp
memory/1876-25-0x00007FF90FDC0000-0x00007FF910764000-memory.dmp
memory/1876-33-0x000000001D300000-0x000000001D3B2000-memory.dmp
memory/1876-32-0x000000001D1F0000-0x000000001D240000-memory.dmp
memory/1876-30-0x00007FF90FDC0000-0x00007FF910764000-memory.dmp
memory/1876-29-0x00007FF90FDC0000-0x00007FF910764000-memory.dmp
memory/1876-28-0x00007FF90FDC0000-0x00007FF910764000-memory.dmp
memory/1876-19-0x00007FF90FDC0000-0x00007FF910764000-memory.dmp
memory/1876-34-0x00007FF90FDC0000-0x00007FF910764000-memory.dmp
memory/1876-26-0x00007FF90FDC0000-0x00007FF910764000-memory.dmp
memory/1876-24-0x00007FF90FDC0000-0x00007FF910764000-memory.dmp
memory/1876-23-0x00007FF90FDC0000-0x00007FF910764000-memory.dmp
memory/1876-22-0x00007FF90FDC0000-0x00007FF910764000-memory.dmp
memory/1876-21-0x00007FF90FDC0000-0x00007FF910764000-memory.dmp
memory/1876-35-0x00007FF90FDC0000-0x00007FF910764000-memory.dmp
memory/1876-20-0x00007FF90FDC0000-0x00007FF910764000-memory.dmp
memory/1876-18-0x00007FF90FDC0000-0x00007FF910764000-memory.dmp
memory/1876-17-0x00007FF90FDC0000-0x00007FF910764000-memory.dmp
memory/5856-8-0x00007FF90FDC0000-0x00007FF910764000-memory.dmp
memory/5856-16-0x00007FF90FDC0000-0x00007FF910764000-memory.dmp
memory/5856-14-0x00007FF90FDC0000-0x00007FF910764000-memory.dmp
memory/5856-13-0x00007FF90FDC0000-0x00007FF910764000-memory.dmp
memory/5856-12-0x00007FF90FDC0000-0x00007FF910764000-memory.dmp
memory/5856-11-0x00007FF90FDC0000-0x00007FF910764000-memory.dmp
memory/5856-10-0x00007FF90FDC0000-0x00007FF910764000-memory.dmp
memory/5856-9-0x00007FF90FDC0000-0x00007FF910764000-memory.dmp
memory/5856-0-0x00007FF90FF4F000-0x00007FF90FF50000-memory.dmp
memory/5856-7-0x00007FF90FDC0000-0x00007FF910764000-memory.dmp
memory/5856-6-0x00007FF90FDC0000-0x00007FF910764000-memory.dmp
memory/5856-5-0x00007FF90FDC0000-0x00007FF910764000-memory.dmp
memory/5856-4-0x00007FF90FDC0000-0x00007FF910764000-memory.dmp
memory/5856-3-0x00007FF90FDC0000-0x00007FF910764000-memory.dmp
memory/5856-2-0x00007FF90FDC0000-0x00007FF910764000-memory.dmp
memory/5856-1-0x0000000000B20000-0x0000000000E44000-memory.dmp