Analysis
- max time kernel
149s - max time network
151s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
30/09/2026, 05:10
General
- Target ok838.org.exe
- Size 3.1MB
- Sample260930-ftqdhayhpb
- SHA256 52169ddbc35b6a38d9f01721fcc6b3b9971200b1d67aa255cefacc31fb01cdf3
Malware Config
Extracted
-
quasar
-
1.4.1
-
Office04
-
ok838.org:443
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www.ok838.org:443
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ok838.org:80
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www.ok838.org:80
-
30aca262-4831-4c24-90ab-342dbffc0ba8
-
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 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\ok838.org.exe"C:\Users\Admin\AppData\Local\Temp\ok838.org.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
-
-
C:\Users\Admin\AppData\Roaming\SubDir\Client.exeC:\Users\Admin\AppData\Roaming\SubDir\Client.exe1⤵
- 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 /f2⤵
- Scheduled Task/Job: Scheduled Task
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
Client.exe
memory/3512-27-0x00007FFC52580000-0x00007FFC52F24000-memory.dmp
memory/3512-20-0x00007FFC52580000-0x00007FFC52F24000-memory.dmp
memory/3512-41-0x000000001D3E0000-0x000000001D430000-memory.dmp
memory/3512-18-0x00007FFC52580000-0x00007FFC52F24000-memory.dmp
memory/3512-26-0x00007FFC52580000-0x00007FFC52F24000-memory.dmp
memory/3512-25-0x00007FFC52580000-0x00007FFC52F24000-memory.dmp
memory/3512-42-0x000000001D4F0000-0x000000001D5A2000-memory.dmp
memory/3512-24-0x00007FFC52580000-0x00007FFC52F24000-memory.dmp
memory/3512-21-0x00007FFC52580000-0x00007FFC52F24000-memory.dmp
memory/3512-22-0x00007FFC52580000-0x00007FFC52F24000-memory.dmp
memory/3512-19-0x00007FFC52580000-0x00007FFC52F24000-memory.dmp
memory/3512-44-0x00007FFC52580000-0x00007FFC52F24000-memory.dmp
memory/3512-14-0x00007FFC52580000-0x00007FFC52F24000-memory.dmp
memory/3512-15-0x00007FFC52580000-0x00007FFC52F24000-memory.dmp
memory/3512-16-0x00007FFC52580000-0x00007FFC52F24000-memory.dmp
memory/3512-17-0x00007FFC52580000-0x00007FFC52F24000-memory.dmp
memory/4516-11-0x00007FFC52580000-0x00007FFC52F24000-memory.dmp
memory/4516-0-0x00007FFC5270F000-0x00007FFC52710000-memory.dmp
memory/4516-10-0x00007FFC52580000-0x00007FFC52F24000-memory.dmp
memory/4516-9-0x00007FFC52580000-0x00007FFC52F24000-memory.dmp
memory/4516-8-0x00007FFC52580000-0x00007FFC52F24000-memory.dmp
memory/4516-7-0x00007FFC52580000-0x00007FFC52F24000-memory.dmp
memory/4516-6-0x00007FFC52580000-0x00007FFC52F24000-memory.dmp
memory/4516-5-0x00007FFC52580000-0x00007FFC52F24000-memory.dmp
memory/4516-23-0x00007FFC52580000-0x00007FFC52F24000-memory.dmp
memory/4516-4-0x00007FFC52580000-0x00007FFC52F24000-memory.dmp
memory/4516-2-0x00007FFC52580000-0x00007FFC52F24000-memory.dmp
memory/4516-1-0x0000000000440000-0x0000000000764000-memory.dmp
memory/4516-3-0x00007FFC52580000-0x00007FFC52F24000-memory.dmp
memory/4856-31-0x00007FFC52580000-0x00007FFC52F24000-memory.dmp
memory/4856-38-0x00007FFC52580000-0x00007FFC52F24000-memory.dmp
memory/4856-33-0x00007FFC52580000-0x00007FFC52F24000-memory.dmp
memory/4856-34-0x00007FFC52580000-0x00007FFC52F24000-memory.dmp
memory/4856-35-0x00007FFC52580000-0x00007FFC52F24000-memory.dmp
memory/4856-36-0x00007FFC52580000-0x00007FFC52F24000-memory.dmp
memory/4856-37-0x00007FFC52580000-0x00007FFC52F24000-memory.dmp
memory/4856-32-0x00007FFC52580000-0x00007FFC52F24000-memory.dmp
memory/4856-39-0x00007FFC52580000-0x00007FFC52F24000-memory.dmp
memory/4856-40-0x00007FFC52580000-0x00007FFC52F24000-memory.dmp
memory/4856-30-0x00007FFC52580000-0x00007FFC52F24000-memory.dmp
memory/4856-29-0x00007FFC52580000-0x00007FFC52F24000-memory.dmp
memory/4856-43-0x00007FFC52580000-0x00007FFC52F24000-memory.dmp
memory/4856-28-0x00007FFC52580000-0x00007FFC52F24000-memory.dmp