Analysis
- max time kernel
150s - max time network
153s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
17/08/2026, 16:48
General
- Target 18c6d40bf88572c8f549ac9f56506edef128601f3426d37aabc811ea4a711223.exe
- Size 9.1MB
- Sample260817-vbhy2aem71
- SHA256 18c6d40bf88572c8f549ac9f56506edef128601f3426d37aabc811ea4a711223
Malware Config
Signatures
- Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
- Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
- Executes dropped EXE 1 IoCs
- Loads dropped DLL 1 IoCs
- Checks whether UAC is enabled 1 TTPs 1 IoCs
- 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.
- Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
- UPX packed file 8 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious use of SetWindowsHookEx 3 IoCs
- Suspicious use of WriteProcessMemory 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\18c6d40bf88572c8f549ac9f56506edef128601f3426d37aabc811ea4a711223.exe"C:\Users\Admin\AppData\Local\Temp\18c6d40bf88572c8f549ac9f56506edef128601f3426d37aabc811ea4a711223.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Loads dropped DLL
- Checks whether UAC is enabled
- Writes to the Master Boot Record (MBR)
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\ProgramData\.MspTool\ClientUI.exeC:\ProgramData\.MspTool\ClientUI.exe 124.223.196.86:8810 Ckad3fwu7NjjQE2f2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
ClientUI.exe
lock.dll
memory/5336-14-0x0000000010000000-0x0000000010042000-memory.dmp
memory/5336-3-0x0000000000400000-0x00000000012F9000-memory.dmp
memory/5336-0-0x0000000000400000-0x00000000012F9000-memory.dmp
memory/5336-13-0x0000000003610000-0x0000000003652000-memory.dmp
memory/5336-12-0x0000000003610000-0x0000000003652000-memory.dmp
memory/5336-10-0x0000000003610000-0x0000000003652000-memory.dmp
memory/5336-6-0x0000000010000000-0x0000000010042000-memory.dmp
memory/5336-4-0x0000000010000000-0x0000000010042000-memory.dmp
memory/5336-15-0x0000000003610000-0x0000000003652000-memory.dmp
memory/5336-7-0x0000000010000000-0x0000000010042000-memory.dmp
memory/5336-2-0x0000000000400000-0x00000000012F9000-memory.dmp
memory/5336-26-0x0000000000400000-0x00000000012F9000-memory.dmp
memory/5336-27-0x0000000000400000-0x00000000012F9000-memory.dmp
memory/5336-28-0x0000000000400000-0x00000000012F9000-memory.dmp
memory/5336-30-0x0000000000400000-0x00000000012F9000-memory.dmp
memory/5336-33-0x0000000000400000-0x00000000012F9000-memory.dmp
memory/5336-37-0x0000000000400000-0x00000000012F9000-memory.dmp