Analysis
- max time kernel
6s - max time network
18s - platform
windows11-21h2_x64 - resource
win11-20240221-en - resource tags
- submitted
29/03/2024, 13:52
General
- Target krampus more like kracked.exe
- Size 3.1MB
- Sample240329-q6e4eahh7x
- SHA256 49376d9766f6944866c5d917905a57b9e41bf100457fd3d9b389f6c3c0abbb92
Malware Config
Extracted
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quasar
-
1.4.1
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nyMr9D3bkD
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192.168.0.24:4782
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6b2c33e5-70a8-47f8-8746-f28159049692
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encryption_key
019832365CF4EA9C63CDBF032EFC8FA4C72C6F0D
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install_name
Client.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Update
-
subdirectory
SubDir
Signatures
- Quasar RAT
Quasar is an open source Remote Access Tool.
- Quasar payload 2 IoCs
- Executes dropped EXE 1 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\krampus more like kracked.exe"C:\Users\Admin\AppData\Local\Temp\krampus more like kracked.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "Update" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "Update" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f3⤵
- Creates scheduled task(s)
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
Client.exe
memory/2792-0-0x0000000000240000-0x000000000056C000-memory.dmp
memory/2792-1-0x00007FFFD5CC0000-0x00007FFFD6782000-memory.dmp
memory/2792-2-0x000000001B110000-0x000000001B120000-memory.dmp
memory/2792-8-0x00007FFFD5CC0000-0x00007FFFD6782000-memory.dmp
memory/4996-9-0x00007FFFD5CC0000-0x00007FFFD6782000-memory.dmp
memory/4996-10-0x000000001B480000-0x000000001B490000-memory.dmp
memory/4996-11-0x00000000028C0000-0x0000000002910000-memory.dmp
memory/4996-12-0x000000001C0A0000-0x000000001C152000-memory.dmp