Analysis
- max time kernel
149s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240426-en - resource tags
- submitted
02/06/2024, 01:51
General
- Target Client-built2.exe
- Size 3.1MB
- Sample240602-b9v7gafd75
- SHA256 397bd422af47cc0511d28b77593f1d768864ff7f76765fc778d9dc3115dc0f98
Malware Config
Extracted
-
quasar
-
1.4.1
-
dusan
-
192.168.178.20:4782
-
ded81f24-0e54-4985-a1fb-e180db45c27d
-
encryption_key
A81486939BB2FAD2A02EAF76B26242A2A9C6D91B
-
install_name
katani.exe
-
log_directory
Log
-
reconnect_delay
3000
-
startup_key
hacked by katani :)
-
subdirectory
download
Signatures
- Quasar RAT
Quasar is an open source Remote Access Tool.
- Quasar payload 2 IoCs
- Executes dropped EXE 1 IoCs
- Adds Run key to start application 2 TTPs 2 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-built2.exe"C:\Users\Admin\AppData\Local\Temp\Client-built2.exe"1⤵
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "hacked by katani :)" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\download\katani.exe" /rl HIGHEST /f2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Roaming\download\katani.exe"C:\Users\Admin\AppData\Roaming\download\katani.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "hacked by katani :)" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\download\katani.exe" /rl HIGHEST /f3⤵
- Creates scheduled task(s)
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
katani.exe
memory/2480-10-0x00007FFAA29F0000-0x00007FFAA34B1000-memory.dmp
memory/2480-11-0x00007FFAA29F0000-0x00007FFAA34B1000-memory.dmp
memory/2480-12-0x000000001B8B0000-0x000000001B900000-memory.dmp
memory/2480-13-0x000000001B9C0000-0x000000001BA72000-memory.dmp
memory/2480-14-0x00007FFAA29F0000-0x00007FFAA34B1000-memory.dmp
memory/4920-0-0x00007FFAA29F3000-0x00007FFAA29F5000-memory.dmp
memory/4920-1-0x0000000000D80000-0x00000000010A4000-memory.dmp
memory/4920-2-0x00007FFAA29F0000-0x00007FFAA34B1000-memory.dmp
memory/4920-9-0x00007FFAA29F0000-0x00007FFAA34B1000-memory.dmp