Analysis
- max time kernel
148s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
- submitted
22/09/2024, 15:22
General
- Target dsadsadsadsadsadsaw.exe
- Size 3.1MB
- Sample240922-srwhyswekp
- SHA256 a776e06b5a0b58ff37d9e08d2e5b0bf470af24318a3f855c0d719018f5b377e6
Malware Config
Extracted
-
quasar
-
1.4.1
-
Office04
-
index-login.gl.at.ply.gg:55810
-
29ca31a1-6db7-4878-87be-91906d99f5fc
-
encryption_key
8C96AFA69C75A8B8BB1F9D9E33C1E409A29273F1
-
install_name
Client.exe
-
log_directory
Logs
-
reconnect_delay
3000
-
startup_key
WindowsDefender
-
subdirectory
SubDir
Signatures
- Quasar RAT
Quasar is an open source Remote Access Tool.
- Quasar payload 2 IoCs
- Executes dropped EXE 1 IoCs
- Drops file in System32 directory 5 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 FindShellTrayWindow 1 IoCs
- Suspicious use of SendNotifyMessage 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 6 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\dsadsadsadsadsadsaw.exe"C:\Users\Admin\AppData\Local\Temp\dsadsadsadsadsadsaw.exe"1⤵
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "WindowsDefender" /sc ONLOGON /tr "C:\Windows\system32\SubDir\Client.exe" /rl HIGHEST /f2⤵
- Scheduled Task/Job: Scheduled Task
-
-
C:\Windows\system32\SubDir\Client.exe"C:\Windows\system32\SubDir\Client.exe"2⤵
- Executes dropped EXE
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "WindowsDefender" /sc ONLOGON /tr "C:\Windows\system32\SubDir\Client.exe" /rl HIGHEST /f3⤵
- Scheduled Task/Job: Scheduled Task
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
Client.exe
memory/4488-0-0x00007FFA7BA23000-0x00007FFA7BA25000-memory.dmp
memory/4488-1-0x0000000000D20000-0x0000000001044000-memory.dmp
memory/4488-2-0x00007FFA7BA20000-0x00007FFA7C4E1000-memory.dmp
memory/4488-9-0x00007FFA7BA20000-0x00007FFA7C4E1000-memory.dmp
memory/5080-10-0x00007FFA7BA20000-0x00007FFA7C4E1000-memory.dmp
memory/5080-11-0x00007FFA7BA20000-0x00007FFA7C4E1000-memory.dmp
memory/5080-12-0x000000001B980000-0x000000001B9D0000-memory.dmp
memory/5080-13-0x000000001BA90000-0x000000001BB42000-memory.dmp
memory/5080-14-0x00007FFA7BA20000-0x00007FFA7C4E1000-memory.dmp