Analysis
- max time kernel
150s - max time network
156s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
01/10/2026, 07:31
General
- Target 789betpg.win.exe
- Size 3.1MB
- Sample261001-jcnp5axthy
- SHA256 fb095c3e82c0df6c4f39f020cb91ed50906dbb311281900c2cba9c7717d81dd2
Malware Config
Extracted
-
quasar
-
1.4.1
-
Office04
-
789betpg.win:443
-
www.789betpg.win:443
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789betpg.win:80
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www.789betpg.win:80
-
95ee5fa7-9dec-42e4-a3d5-ae9826eebda8
-
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 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\789betpg.win.exe"C:\Users\Admin\AppData\Local\Temp\789betpg.win.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:\Users\Admin\AppData\Roaming\SubDir\Client.exeC:\Users\Admin\AppData\Roaming\SubDir\Client.exe1⤵
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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:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k GPSvcGroup1⤵
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
Client.exe
memory/2120-22-0x00007FFFB9F50000-0x00007FFFBA8F4000-memory.dmp
memory/2120-21-0x00007FFFB9F50000-0x00007FFFBA8F4000-memory.dmp
memory/2120-28-0x00007FFFB9F50000-0x00007FFFBA8F4000-memory.dmp
memory/2120-15-0x00007FFFB9F50000-0x00007FFFBA8F4000-memory.dmp
memory/2120-25-0x00007FFFB9F50000-0x00007FFFBA8F4000-memory.dmp
memory/2120-24-0x00007FFFB9F50000-0x00007FFFBA8F4000-memory.dmp
memory/2120-23-0x00007FFFB9F50000-0x00007FFFBA8F4000-memory.dmp
memory/2120-17-0x00007FFFB9F50000-0x00007FFFBA8F4000-memory.dmp
memory/2120-20-0x00007FFFB9F50000-0x00007FFFBA8F4000-memory.dmp
memory/2120-19-0x00007FFFB9F50000-0x00007FFFBA8F4000-memory.dmp
memory/2120-11-0x00007FFFB9F50000-0x00007FFFBA8F4000-memory.dmp
memory/2120-16-0x00007FFFB9F50000-0x00007FFFBA8F4000-memory.dmp
memory/2120-18-0x00007FFFB9F50000-0x00007FFFBA8F4000-memory.dmp
memory/2120-13-0x00007FFFB9F50000-0x00007FFFBA8F4000-memory.dmp
memory/2120-12-0x00007FFFB9F50000-0x00007FFFBA8F4000-memory.dmp
memory/2760-26-0x000000001D320000-0x000000001D370000-memory.dmp
memory/2760-27-0x000000001D430000-0x000000001D4E2000-memory.dmp
memory/4884-2-0x00007FFFB9F50000-0x00007FFFBA8F4000-memory.dmp
memory/4884-10-0x00007FFFB9F50000-0x00007FFFBA8F4000-memory.dmp
memory/4884-9-0x00007FFFB9F50000-0x00007FFFBA8F4000-memory.dmp
memory/4884-1-0x0000000000640000-0x0000000000964000-memory.dmp
memory/4884-0-0x00007FFFBA0DF000-0x00007FFFBA0E0000-memory.dmp
memory/4884-7-0x00007FFFB9F50000-0x00007FFFBA8F4000-memory.dmp
memory/4884-6-0x00007FFFB9F50000-0x00007FFFBA8F4000-memory.dmp
memory/4884-5-0x00007FFFB9F50000-0x00007FFFBA8F4000-memory.dmp
memory/4884-4-0x00007FFFB9F50000-0x00007FFFBA8F4000-memory.dmp
memory/4884-3-0x00007FFFB9F50000-0x00007FFFBA8F4000-memory.dmp