Analysis
- max time kernel
148s - max time network
147s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260629-en - resource tags
- submitted
03/07/2026, 06:17
General
- Target QuasarRAT.exe
- Size 3.1MB
- Sample260703-g2fppsgz8p
- SHA256 db13c00aa0a61dee2d38d027038370eebadf1746c1bda12c5be0d16a2a7e743f
Malware Config
Extracted
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quasar
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1.4.1
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burggraven.nl
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burggraven.nl:81
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burggraven.nl:8443
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burggraven.nl:884
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burggraven.nl:8080
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burggraven.nl:8888
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burggraven.nl:5555
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controller.burggraven.nl:9999
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controller.burggraven.nl:5555
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botnet.burggraven.nl:5555
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botnet.burggraven.nl:443
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burggraven.nl:443
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burggraven.nl:80
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5ff7c49f-72a8-4b9a-b691-1b403bb05d0b
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encryption_key
1F31CD0582BA6FBDA903BF4F947CCB13B60528E3
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install_name
burggraven.nl.exe
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key_salt
bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941
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log_directory
Logs
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reconnect_delay
3000
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startup_key
burggraven.nl Client Startup
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subdirectory
burggraven.nl
Signatures
- Family: Quasar RAT
Quasar is an open source Remote Access Tool.
- Quasar payload 2 IoCs
- Executes dropped EXE 2 IoCs
- System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs
Adversaries may check for Internet connectivity on compromised systems.
- Runs ping.exe 1 TTPs 1 IoCs
- Scheduled Task/Job: Scheduled Task 1 TTPs 3 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
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C:\Users\Admin\AppData\Local\Temp\QuasarRAT.exe"C:\Users\Admin\AppData\Local\Temp\QuasarRAT.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "burggraven.nl Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\burggraven.nl\burggraven.nl.exe" /rl HIGHEST /f2⤵
- Scheduled Task/Job: Scheduled Task
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C:\Users\Admin\AppData\Roaming\burggraven.nl\burggraven.nl.exe"C:\Users\Admin\AppData\Roaming\burggraven.nl\burggraven.nl.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Roaming\burggraven.nl\burggraven.nl.exeC:\Users\Admin\AppData\Roaming\burggraven.nl\burggraven.nl.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\System32\schtasks.exe"schtasks" /create /tn "burggraven.nl Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\burggraven.nl\burggraven.nl.exe" /rl HIGHEST /f2⤵
- Scheduled Task/Job: Scheduled Task
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\EGhc3CfKDkg8.bat" "2⤵
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C:\Windows\System32\chcp.comchcp 650013⤵
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C:\Windows\System32\PING.EXEping -n 10 localhost3⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
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C:\Users\Admin\AppData\Roaming\burggraven.nl\burggraven.nl.exe"C:\Users\Admin\AppData\Roaming\burggraven.nl\burggraven.nl.exe"3⤵
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C:\Windows\System32\schtasks.exe"schtasks" /create /tn "burggraven.nl Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\burggraven.nl\burggraven.nl.exe" /rl HIGHEST /f4⤵
- Scheduled Task/Job: Scheduled Task
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-
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
EGhc3CfKDkg8.bat
burggraven.nl.exe
memory/2192-27-0x000000001BA10000-0x000000001BA60000-memory.dmp
memory/2192-28-0x000000001CFA0000-0x000000001D052000-memory.dmp
memory/3356-14-0x00007FFBC5120000-0x00007FFBC5AC4000-memory.dmp
memory/3356-17-0x00007FFBC5120000-0x00007FFBC5AC4000-memory.dmp
memory/3356-6-0x00007FFBC5120000-0x00007FFBC5AC4000-memory.dmp
memory/3356-7-0x00007FFBC5120000-0x00007FFBC5AC4000-memory.dmp
memory/3356-8-0x00007FFBC5120000-0x00007FFBC5AC4000-memory.dmp
memory/3356-9-0x00007FFBC5120000-0x00007FFBC5AC4000-memory.dmp
memory/3356-10-0x00007FFBC5120000-0x00007FFBC5AC4000-memory.dmp
memory/3356-11-0x00007FFBC5120000-0x00007FFBC5AC4000-memory.dmp
memory/3356-12-0x00007FFBC5120000-0x00007FFBC5AC4000-memory.dmp
memory/3356-13-0x00007FFBC5120000-0x00007FFBC5AC4000-memory.dmp
memory/3356-0-0x00007FFBC52AF000-0x00007FFBC52B0000-memory.dmp
memory/3356-4-0x00007FFBC5120000-0x00007FFBC5AC4000-memory.dmp
memory/3356-1-0x00000000008F0000-0x0000000000C14000-memory.dmp
memory/3356-5-0x00007FFBC5120000-0x00007FFBC5AC4000-memory.dmp
memory/3356-2-0x00007FFBC5120000-0x00007FFBC5AC4000-memory.dmp
memory/3356-3-0x00007FFBC5120000-0x00007FFBC5AC4000-memory.dmp
memory/3436-21-0x00007FFBC5120000-0x00007FFBC5AC4000-memory.dmp
memory/3436-22-0x00007FFBC5120000-0x00007FFBC5AC4000-memory.dmp
memory/3436-19-0x00007FFBC5120000-0x00007FFBC5AC4000-memory.dmp
memory/3436-23-0x00007FFBC5120000-0x00007FFBC5AC4000-memory.dmp
memory/3436-24-0x00007FFBC5120000-0x00007FFBC5AC4000-memory.dmp
memory/3436-25-0x00007FFBC5120000-0x00007FFBC5AC4000-memory.dmp
memory/3436-20-0x00007FFBC5120000-0x00007FFBC5AC4000-memory.dmp
memory/3436-18-0x00007FFBC5120000-0x00007FFBC5AC4000-memory.dmp
memory/3436-29-0x00007FFBC5120000-0x00007FFBC5AC4000-memory.dmp
memory/3436-16-0x00007FFBC5120000-0x00007FFBC5AC4000-memory.dmp