Analysis
- max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
- submitted
22/09/2024, 15:18
General
- Target killerdude.exe
- Size 3.1MB
- Sample240922-spk97swcpc
- SHA256 4175974b7d8192d5ddbf9ab3f2078a158453a1122e5de7c3ba233b4daf25ab3f
Malware Config
Extracted
-
quasar
-
1.4.1
-
Office04
-
pst-pierre.gl.at.ply.gg:7777
-
29ca31a1-6db7-4878-87be-91906d99f5fc
-
encryption_key
8C96AFA69C75A8B8BB1F9D9E33C1E409A29273F1
-
install_name
Client.exe
-
log_directory
Logs
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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\killerdude.exe"C:\Users\Admin\AppData\Local\Temp\killerdude.exe"1⤵
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
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
-
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/2876-10-0x00007FFFDF4B0000-0x00007FFFDFF71000-memory.dmp
memory/2876-11-0x00007FFFDF4B0000-0x00007FFFDFF71000-memory.dmp
memory/2876-12-0x000000001B3B0000-0x000000001B400000-memory.dmp
memory/2876-13-0x000000001BC50000-0x000000001BD02000-memory.dmp
memory/2876-14-0x00007FFFDF4B0000-0x00007FFFDFF71000-memory.dmp
memory/4924-0-0x00007FFFDF4B3000-0x00007FFFDF4B5000-memory.dmp
memory/4924-1-0x00000000001E0000-0x0000000000504000-memory.dmp
memory/4924-2-0x00007FFFDF4B0000-0x00007FFFDFF71000-memory.dmp
memory/4924-9-0x00007FFFDF4B0000-0x00007FFFDFF71000-memory.dmp