Analysis
- max time kernel
150s - max time network
141s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
- submitted
09/08/2024, 16:12
General
- Target RD_VSetup1.41.exe
- Size 3.3MB
- Sample240809-tnprnswfph
- SHA256 eea939e6d9dae292703d7d5b634938cfe4a00db8115daf9c3c4148afd8895eef
Malware Config
Extracted
-
quasar
-
1.4.1
-
RemixThatTing
-
192.168.1.1:4782
-
2853cd92-f829-4151-a3ab-a32a77b6bfd1
-
encryption_key
1C048FBC4D2C47C8039B5C30AAA4E3E12C03AE02
-
install_name
Client.exe
-
log_directory
Logs
-
reconnect_delay
3000
-
startup_key
Java Updater v.1.4.1
-
subdirectory
SubDir
Signatures
- Quasar RAT
Quasar is an open source Remote Access Tool.
- Quasar payload 1 IoCs
- Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
- Modifies registry class 1 IoCs
- Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 24 IoCs
- Suspicious use of AdjustPrivilegeToken 6 IoCs
- Suspicious use of FindShellTrayWindow 50 IoCs
- Suspicious use of SendNotifyMessage 49 IoCs
- Suspicious use of SetWindowsHookEx 1 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\RD_VSetup1.41.exe"C:\Users\Admin\AppData\Local\Temp\RD_VSetup1.41.exe"1⤵
- 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 "Java Updater v.1.4.1" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f2⤵
- Scheduled Task/Job: Scheduled Task
-
-
C:\Windows\system32\taskmgr.exe"C:\Windows\system32\taskmgr.exe" /41⤵
- Checks SCSI registry key(s)
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
-
C:\Windows\System32\rundll32.exeC:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding1⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
memory/1292-17-0x000001E12F7A0000-0x000001E12F7A1000-memory.dmp
memory/1292-16-0x000001E12F7A0000-0x000001E12F7A1000-memory.dmp
memory/1292-13-0x000001E12F7A0000-0x000001E12F7A1000-memory.dmp
memory/1292-14-0x000001E12F7A0000-0x000001E12F7A1000-memory.dmp
memory/1292-15-0x000001E12F7A0000-0x000001E12F7A1000-memory.dmp
memory/1292-19-0x000001E12F7A0000-0x000001E12F7A1000-memory.dmp
memory/1292-18-0x000001E12F7A0000-0x000001E12F7A1000-memory.dmp
memory/1292-7-0x000001E12F7A0000-0x000001E12F7A1000-memory.dmp
memory/1292-8-0x000001E12F7A0000-0x000001E12F7A1000-memory.dmp
memory/1292-9-0x000001E12F7A0000-0x000001E12F7A1000-memory.dmp
memory/1780-1-0x0000000000C60000-0x0000000000FB2000-memory.dmp
memory/1780-6-0x00007FFD7DFF0000-0x00007FFD7EAB1000-memory.dmp
memory/1780-0-0x00007FFD7DFF3000-0x00007FFD7DFF5000-memory.dmp
memory/1780-5-0x00007FFD7DFF3000-0x00007FFD7DFF5000-memory.dmp
memory/1780-4-0x000000001C460000-0x000000001C512000-memory.dmp
memory/1780-3-0x000000001BC50000-0x000000001BCA0000-memory.dmp
memory/1780-2-0x00007FFD7DFF0000-0x00007FFD7EAB1000-memory.dmp