Resubmissions
09/08/2024, 00:46
240809-a42lmatcjl1009/08/2024, 00:46
240809-a4t7jstbqq1008/08/2024, 23:52
240808-3w6jtswfmb1008/08/2024, 23:51
240808-3wdh2swfkb10Analysis
- max time kernel
1034s - max time network
1044s - platform
windows7_x64 - resource
win7-20240704-en - resource tags
- submitted
09/08/2024, 00:46
General
- Target discord tools.exe
- Size 3.1MB
- Sample240809-a42lmatcjl
- SHA256 b82f5cd3fe2da0e092fc146c0ea9c8d57a91130393b507a5baaa2cc495b677ef
Malware Config
Extracted
-
quasar
-
1.4.1
-
Office04
-
192.168.1.238:4782
-
74df0c6c-7a6a-4568-9ec0-2f9c6a9d27f8
-
encryption_key
8C46BC313F0994B9EE81A665B3D4CE2B8B77E6E3
-
install_name
discord tools.exe
-
log_directory
Logs
-
reconnect_delay
3000
-
startup_key
discord Client Startup
-
subdirectory
SubDir
Signatures
- Quasar RAT
Quasar is an open source Remote Access Tool.
- Quasar payload 4 IoCs
- Executes dropped EXE 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 8 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of FindShellTrayWindow 36 IoCs
- Suspicious use of SendNotifyMessage 35 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 9 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\discord tools.exe"C:\Users\Admin\AppData\Local\Temp\discord tools.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\system32\schtasks.exe"schtasks" /create /tn "discord Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\discord tools.exe" /rl HIGHEST /f2⤵
- Scheduled Task/Job: Scheduled Task
-
-
C:\Users\Admin\AppData\Roaming\SubDir\discord tools.exe"C:\Users\Admin\AppData\Roaming\SubDir\discord tools.exe"2⤵
- Executes dropped EXE
- 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 "discord Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\discord tools.exe" /rl HIGHEST /f3⤵
- Scheduled Task/Job: Scheduled Task
-
-
-
C:\Windows\system32\taskmgr.exe"C:\Windows\system32\taskmgr.exe" /41⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
discord tools.exe
memory/2160-13-0x0000000140000000-0x00000001405E8000-memory.dmp
memory/2160-14-0x0000000140000000-0x00000001405E8000-memory.dmp
memory/2388-0-0x000007FEF57A3000-0x000007FEF57A4000-memory.dmp
memory/2388-1-0x0000000000BA0000-0x0000000000EC4000-memory.dmp
memory/2388-2-0x000007FEF57A0000-0x000007FEF618C000-memory.dmp
memory/2388-8-0x000007FEF57A0000-0x000007FEF618C000-memory.dmp
memory/2968-9-0x00000000011D0000-0x00000000014F4000-memory.dmp
memory/2968-11-0x000007FEF57A0000-0x000007FEF618C000-memory.dmp
memory/2968-10-0x000007FEF57A0000-0x000007FEF618C000-memory.dmp
memory/2968-15-0x000007FEF57A0000-0x000007FEF618C000-memory.dmp