Analysis
- max time kernel
184s - max time network
191s - platform
windows7_x64 - resource
win7-20240611-en - resource tags
- submitted
29/06/2024, 22:58
General
- Target gold.exe
- Size 342KB
- Sample240629-2xxsmsydpg
- SHA256 c18119713c678bbea78db54da4099ec7c5ff05e06b9c2904f08e9a2bca0219aa
Malware Config
Signatures
- Quasar RAT
Quasar is an open source Remote Access Tool.
- Executes dropped EXE 1 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Drops file in Program Files directory 4 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 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\gold.exe"C:\Users\Admin\AppData\Local\Temp\gold.exe"1⤵
- Adds Run key to start application
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\system32\schtasks.exe"schtasks" /create /tn "Steam" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\gold.exe" /rl HIGHEST /f2⤵
- Scheduled Task/Job: Scheduled Task
-
-
C:\Program Files (x86)\SubDir\Client.exe"C:\Program Files (x86)\SubDir\Client.exe"2⤵
- Executes dropped EXE
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Windows\system32\schtasks.exe"schtasks" /create /tn "Steam" /sc ONLOGON /tr "C:\Program Files (x86)\SubDir\Client.exe" /rl HIGHEST /f3⤵
- Scheduled Task/Job: Scheduled Task
-
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Replay Monitor
Loading Replay Monitor...
Downloads
Client.exe
memory/2716-9-0x00000000013E0000-0x00000000013E8000-memory.dmp
memory/2716-10-0x000007FEF56E0000-0x000007FEF60CC000-memory.dmp
memory/2716-11-0x000007FEF56E0000-0x000007FEF60CC000-memory.dmp
memory/2716-14-0x000007FEF56E0000-0x000007FEF60CC000-memory.dmp
memory/2716-15-0x000007FEF56E0000-0x000007FEF60CC000-memory.dmp
memory/2924-0-0x000007FEF56E3000-0x000007FEF56E4000-memory.dmp
memory/2924-1-0x0000000001160000-0x0000000001168000-memory.dmp
memory/2924-2-0x0000000000BA0000-0x0000000000C3E000-memory.dmp
memory/2924-3-0x000007FEF56E0000-0x000007FEF60CC000-memory.dmp
memory/2924-12-0x000007FEF56E0000-0x000007FEF60CC000-memory.dmp