Analysis
- max time kernel
104s - max time network
118s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
- submitted
01/09/2024, 02:53
General
- Target 0e6a30b700d0b417f85f1c6999ba9c50N.exe
- Size 3.1MB
- Sample240901-ddgqbazdrc
- SHA256 561fe5209e54e0c91eb8faf5632e3315815770d58e89bc50677bdb1f944bd89a
Malware Config
Extracted
-
quasar
-
1.4.1
-
Office04
-
192.168.1.50:4782
-
ea8c66bf-4707-4c3b-be32-09615e135089
-
encryption_key
674CB9EB9E67A692B751A2EA5BB781A3ECA74C67
-
install_name
host.exe
-
log_directory
Logs
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reconnect_delay
3000
-
startup_key
host
-
subdirectory
SubDir
Signatures
- Quasar RAT
Quasar is an open source Remote Access Tool.
- Quasar payload 2 IoCs
- Executes dropped EXE 1 IoCs
- Drops file in System32 directory 5 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 use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of SendNotifyMessage 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\0e6a30b700d0b417f85f1c6999ba9c50N.exe"C:\Users\Admin\AppData\Local\Temp\0e6a30b700d0b417f85f1c6999ba9c50N.exe"1⤵
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "host" /sc ONLOGON /tr "C:\Windows\system32\SubDir\host.exe" /rl HIGHEST /f2⤵
- Scheduled Task/Job: Scheduled Task
-
-
C:\Windows\system32\SubDir\host.exe"C:\Windows\system32\SubDir\host.exe"2⤵
- Executes dropped EXE
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
-
C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "host" /sc ONLOGON /tr "C:\Windows\system32\SubDir\host.exe" /rl HIGHEST /f3⤵
- Scheduled Task/Job: Scheduled Task
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
host.exe
memory/3256-0-0x00007FF9D31F3000-0x00007FF9D31F5000-memory.dmp
memory/3256-1-0x0000000000F10000-0x0000000001234000-memory.dmp
memory/3256-2-0x00007FF9D31F0000-0x00007FF9D3CB1000-memory.dmp
memory/3256-9-0x00007FF9D31F0000-0x00007FF9D3CB1000-memory.dmp
memory/4696-10-0x00007FF9D31F0000-0x00007FF9D3CB1000-memory.dmp
memory/4696-11-0x00007FF9D31F0000-0x00007FF9D3CB1000-memory.dmp
memory/4696-12-0x000000001C3F0000-0x000000001C440000-memory.dmp
memory/4696-13-0x000000001C500000-0x000000001C5B2000-memory.dmp
memory/4696-14-0x00007FF9D31F0000-0x00007FF9D3CB1000-memory.dmp