Analysis
- max time kernel
149s - max time network
154s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
- submitted
20/08/2026, 11:07
General
- Target JKTool/jktool.exe
- Size 2.1MB
- Sample260820-m8f7psythw
- SHA256 20de481404b8d5d610b66e8f35a0eb5be61cf61040adbb88e49362ef35dba2bf
Score
6/10
Malware Config
Signatures
- Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
- System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
- Modifies registry class 8 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious use of SetWindowsHookEx 2 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\JKTool\jktool.exe"C:\Users\Admin\AppData\Local\Temp\JKTool\jktool.exe"1⤵
- Writes to the Master Boot Record (MBR)
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
memory/3564-2-0x00000000010F0000-0x00000000014F8000-memory.dmp
memory/3564-1-0x0000000000C20000-0x0000000000C35000-memory.dmp
memory/3564-3-0x0000000000C40000-0x00000000010E3000-memory.dmp
memory/3564-5-0x0000000001500000-0x000000000157B000-memory.dmp
memory/3564-0-0x00000000007F0000-0x0000000000807000-memory.dmp
memory/3564-7-0x0000000001580000-0x00000000017DA000-memory.dmp