Analysis
- max time kernel
144s - max time network
146s - platform
windows10-2004_x64 - resource
win10v2004-20231222-en - resource tags
- submitted
08/01/2024, 09:48
General
- Target Client.exe
- Size 3.2MB
- Sample240108-lsr4lafdcr
- SHA256 c4ce370872ed6186d6a00aabb37e59936ea264bd5ee7e61bc366aa5fbbfc8cf4
Malware Config
Extracted
-
quasar
-
1.4.1
-
paras
-
myhost567098.ddns.net:4782
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ed3740ef-5b56-4c1b-b8e8-4869a98d9df2
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encryption_key
DF1B77D370240560AD7587D3FEFAC938EF88DB93
-
install_name
gta 6.exe
-
log_directory
Logs
-
reconnect_delay
3000
-
startup_key
gta update
-
subdirectory
game
Signatures
- Quasar RAT
Quasar is an open source Remote Access Tool.
- Quasar payload 3 IoCs
- Executes dropped EXE 1 IoCs
- Drops file in System32 directory 5 IoCs
- Creates scheduled task(s) 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 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\Client.exe"C:\Users\Admin\AppData\Local\Temp\Client.exe"1⤵
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "gta update" /sc ONLOGON /tr "C:\Windows\system32\game\gta 6.exe" /rl HIGHEST /f2⤵
- Creates scheduled task(s)
-
-
C:\Windows\system32\game\gta 6.exe"C:\Windows\system32\game\gta 6.exe"2⤵
- Executes dropped EXE
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "gta update" /sc ONLOGON /tr "C:\Windows\system32\game\gta 6.exe" /rl HIGHEST /f3⤵
- Creates scheduled task(s)
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
gta 6.exe
gta 6.exe
memory/3212-0-0x0000000000330000-0x0000000000664000-memory.dmp
memory/3212-1-0x00007FF8CA8B0000-0x00007FF8CB371000-memory.dmp
memory/3212-2-0x000000001B1E0000-0x000000001B1F0000-memory.dmp
memory/3212-9-0x00007FF8CA8B0000-0x00007FF8CB371000-memory.dmp
memory/5028-10-0x00007FF8CA8B0000-0x00007FF8CB371000-memory.dmp
memory/5028-11-0x000000001B220000-0x000000001B230000-memory.dmp
memory/5028-12-0x000000001B230000-0x000000001B280000-memory.dmp
memory/5028-13-0x000000001BB40000-0x000000001BBF2000-memory.dmp
memory/5028-14-0x00007FF8CA8B0000-0x00007FF8CB371000-memory.dmp
memory/5028-15-0x000000001B220000-0x000000001B230000-memory.dmp