Analysis
- max time kernel
148s - max time network
150s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260618-en - resource tags
- submitted
23/06/2026, 01:48
General
- Target rahongbu.exe
- Size 3.1MB
- Sample260623-b8brfaas5z
- SHA256 38df6b12199c3822725d9b88bb39cce9dd3a6ca8263f0af687f15f6145df7263
Malware Config
Extracted
-
quasar
-
1.4.1
-
Office04
-
rahongbu.com:443
-
www.rahongbu.com:443
-
rahongbu.com:80
-
www.rahongbu.com:80
-
f014127d-054d-4775-94aa-d56c1ddfac4c
-
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
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- 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 FindShellTrayWindow 1 IoCs
- Suspicious use of SendNotifyMessage 1 IoCs
- Suspicious use of SetWindowsHookEx 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\rahongbu.exe"C:\Users\Admin\AppData\Local\Temp\rahongbu.exe"1⤵
- 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 /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 FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
- 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
-
-
-
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
Loading Replay Monitor...
Downloads
Client.exe
memory/5892-24-0x00007FFECC8C0000-0x00007FFECD264000-memory.dmp
memory/5892-26-0x00007FFECC8C0000-0x00007FFECD264000-memory.dmp
memory/5892-34-0x00007FFECC8C0000-0x00007FFECD264000-memory.dmp
memory/5892-33-0x000000001D170000-0x000000001D222000-memory.dmp
memory/5892-32-0x000000001D060000-0x000000001D0B0000-memory.dmp
memory/5892-30-0x00007FFECC8C0000-0x00007FFECD264000-memory.dmp
memory/5892-29-0x00007FFECC8C0000-0x00007FFECD264000-memory.dmp
memory/5892-28-0x00007FFECC8C0000-0x00007FFECD264000-memory.dmp
memory/5892-27-0x00007FFECC8C0000-0x00007FFECD264000-memory.dmp
memory/5892-19-0x00007FFECC8C0000-0x00007FFECD264000-memory.dmp
memory/5892-25-0x00007FFECC8C0000-0x00007FFECD264000-memory.dmp
memory/5892-22-0x00007FFECC8C0000-0x00007FFECD264000-memory.dmp
memory/5892-20-0x00007FFECC8C0000-0x00007FFECD264000-memory.dmp
memory/5892-21-0x00007FFECC8C0000-0x00007FFECD264000-memory.dmp
memory/5892-17-0x00007FFECC8C0000-0x00007FFECD264000-memory.dmp
memory/5892-16-0x00007FFECC8C0000-0x00007FFECD264000-memory.dmp
memory/5892-18-0x00007FFECC8C0000-0x00007FFECD264000-memory.dmp
memory/6104-10-0x00007FFECC8C0000-0x00007FFECD264000-memory.dmp
memory/6104-11-0x00007FFECC8C0000-0x00007FFECD264000-memory.dmp
memory/6104-14-0x00007FFECC8C0000-0x00007FFECD264000-memory.dmp
memory/6104-13-0x00007FFECC8C0000-0x00007FFECD264000-memory.dmp
memory/6104-12-0x00007FFECC8C0000-0x00007FFECD264000-memory.dmp
memory/6104-23-0x00007FFECC8C0000-0x00007FFECD264000-memory.dmp
memory/6104-1-0x0000000000BD0000-0x0000000000EF4000-memory.dmp
memory/6104-0-0x00007FFECCA4F000-0x00007FFECCA50000-memory.dmp
memory/6104-9-0x00007FFECC8C0000-0x00007FFECD264000-memory.dmp
memory/6104-2-0x00007FFECC8C0000-0x00007FFECD264000-memory.dmp
memory/6104-8-0x00007FFECC8C0000-0x00007FFECD264000-memory.dmp
memory/6104-7-0x00007FFECC8C0000-0x00007FFECD264000-memory.dmp
memory/6104-6-0x00007FFECC8C0000-0x00007FFECD264000-memory.dmp
memory/6104-5-0x00007FFECC8C0000-0x00007FFECD264000-memory.dmp
memory/6104-4-0x00007FFECC8C0000-0x00007FFECD264000-memory.dmp
memory/6104-3-0x00007FFECC8C0000-0x00007FFECD264000-memory.dmp