Analysis
- max time kernel
148s - max time network
153s - platform
windows10-2004_x64 - resource
win10v2004-20240419-en - resource tags
- submitted
28/04/2024, 07:18
General
- Target e0537c132607a98cb4133bb066a74db2.exe
- Size 3.1MB
- Sample240428-h4x77sag24
- SHA256 a2b66f9f80d2add5e7b13f9e75b6c964e53d7aa2e52065b469b83f7e7c31fa7c
Malware Config
Extracted
-
quasar
-
1.4.1
-
Office04
-
192.168.10.193:4455
-
71f9480f-0626-42cf-aad4-d6f84c1c5e58
-
encryption_key
C030D8F7F18781EB62BC0CFFC3F2B361D2649603
-
install_name
Client.exe
-
log_directory
Logs
-
reconnect_delay
3000
-
startup_key
QClient
-
subdirectory
SubDir
Signatures
- Quasar RAT
Quasar is an open source Remote Access Tool.
- Quasar payload 1 IoCs
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious use of AdjustPrivilegeToken 1 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\e0537c132607a98cb4133bb066a74db2.exe"C:\Users\Admin\AppData\Local\Temp\e0537c132607a98cb4133bb066a74db2.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "QClient" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f2⤵
- Creates scheduled task(s)
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
memory/4224-0-0x0000000000180000-0x00000000004A4000-memory.dmp
memory/4224-1-0x00007FFB1F810000-0x00007FFB202D1000-memory.dmp
memory/4224-2-0x000000001B2E0000-0x000000001B2F0000-memory.dmp
memory/4224-3-0x00000000028D0000-0x0000000002920000-memory.dmp
memory/4224-4-0x000000001BAA0000-0x000000001BB52000-memory.dmp
memory/4224-5-0x00007FFB1F810000-0x00007FFB202D1000-memory.dmp
memory/4224-6-0x000000001B2E0000-0x000000001B2F0000-memory.dmp