Analysis
- max time kernel
11s - max time network
13s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
18/10/2026, 22:47
Errors
Reason
Machine shutdown
General
- Target jaffacakes118_Trojan.Win32.Cossta.aklc.exe
- Size 152KB
- Sample261018-2qlrssh15q
- SHA256 0580be86eea07db5910216e2249ee77d0f62d5d983d8f78f2bf5bbee1695a151
Score
7/10
Malware Config
Signatures
- Creates a file in the Startup directory 1 TTPs 2 IoCs
A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.
- Adds Run key to start application 2 TTPs 2 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Modifies data under HKEY_USERS 4 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 6 IoCs
- Suspicious use of WriteProcessMemory 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan.Win32.Cossta.aklc.exe"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan.Win32.Cossta.aklc.exe"1⤵
- Creates a file in the Startup directory
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\shutdown.exeshutdown -r -t 2 -f2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan.Win32.Cossta.aklc.exeC:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan.Win32.Cossta.aklc.exe1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
-
C:\Windows\System32\PickerHost.exeC:\Windows\System32\PickerHost.exe -Embedding1⤵
- Suspicious use of SetWindowsHookEx
-
C:\Windows\system32\LogonUI.exe"LogonUI.exe" /flags:0x4 /state0:0xa3a24055 /state1:0x41c64e6d1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
-
C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k CameraMonitor1⤵
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
jaffacakes118_Trojan.Win32.Cossta.aklc.exe.bmp
