Analysis
- max time kernel
149s - max time network
150s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
- submitted
01/06/2026, 22:46
General
- Target 2026-06-01_6fc409965de5c3be926b4c8e2b14e396_elex_smoke-loader_stop.exe
- Size 1.7MB
- Sample260601-2p79eagw2s
- SHA256 e24696d4f6e98312da6e6173db8cdabde94d6f6657a2a231cfdc10fc75760dd5
Malware Config
Signatures
- Checks BIOS information in registry 2 TTPs 6 IoCs
BIOS information is often read in order to detect sandboxing environments.
- Executes dropped EXE 2 IoCs
- Loads dropped DLL 8 IoCs
- Adds Run key to start application 2 TTPs 2 IoCs
- Drops file in System32 directory 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 11 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Modifies registry class 30 IoCs
- NTFS ADS 3 IoCs
- Suspicious use of AdjustPrivilegeToken 6 IoCs
- Suspicious use of SetWindowsHookEx 3 IoCs
- Suspicious use of WriteProcessMemory 9 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-06-01_6fc409965de5c3be926b4c8e2b14e396_elex_smoke-loader_stop.exe"C:\Users\Admin\AppData\Local\Temp\2026-06-01_6fc409965de5c3be926b4c8e2b14e396_elex_smoke-loader_stop.exe"1⤵
- Checks BIOS information in registry
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\wocualts.exe"C:\Users\Admin\AppData\Local\Temp\wocualts.exe"2⤵
- Checks BIOS information in registry
- Executes dropped EXE
- Adds Run key to start application
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- NTFS ADS
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\regsvr32.exeregsvr32.exe /s "C:\Windows\system32\vbzip11.dll"3⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
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-
C:\Windows\SysWOW64\regsvr32.exeregsvr32.exe /s "C:\Windows\system32\vbzip11.dll"3⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
-
-
C:\Windows\SysWOW64\regsvr32.exeregsvr32.exe /s "C:\Windows\system32\vbzip11.dll"3⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
-
-
C:\Windows\SysWOW64\regsvr32.exeregsvr32.exe /s "C:\Windows\system32\vbzip11.dll"3⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
-
-
C:\Windows\SysWOW64\regsvr32.exeregsvr32.exe /s "C:\Users\Admin\AppData\Local\Temp\vbzip11.dll"3⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
-
-
C:\Windows\SysWOW64\regsvr32.exeregsvr32.exe /s "C:\Users\Admin\AppData\Local\Temp\vbzip11.dll"3⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
-
-
C:\Windows\SysWOW64\regsvr32.exeregsvr32.exe /s "C:\Users\Admin\AppData\Local\Temp\vbzip11.dll"3⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
-
-
C:\Windows\SysWOW64\regsvr32.exeregsvr32.exe /s "C:\Users\Admin\AppData\Local\Temp\vbzip11.dll"3⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
-
-
-
C:\Users\Admin\AppData\Local\Temp\wocualts.exeC:\Users\Admin\AppData\Local\Temp\wocualts.exe1⤵
- Checks BIOS information in registry
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Modifies registry class
- NTFS ADS
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
TEMP:C9C13817
micka.exe
wocualts.exe
vbzip11.dll
memory/3484-105-0x0000000000400000-0x0000000000620000-memory.dmp
memory/3484-104-0x0000000000400000-0x0000000000620000-memory.dmp
memory/3484-103-0x0000000000400000-0x0000000000620000-memory.dmp
memory/3484-106-0x0000000002350000-0x0000000002438000-memory.dmp
memory/3484-102-0x0000000000400000-0x0000000000620000-memory.dmp
memory/3484-99-0x0000000002350000-0x0000000002438000-memory.dmp
memory/3484-98-0x0000000002350000-0x0000000002438000-memory.dmp
memory/3484-91-0x0000000002350000-0x0000000002438000-memory.dmp
memory/3484-96-0x0000000002350000-0x0000000002438000-memory.dmp
memory/3484-111-0x0000000002350000-0x0000000002438000-memory.dmp
memory/3484-113-0x0000000000400000-0x0000000000620000-memory.dmp
memory/4332-17-0x0000000000400000-0x0000000000620000-memory.dmp
memory/4332-10-0x0000000002220000-0x0000000002308000-memory.dmp
memory/4332-2-0x0000000000495000-0x0000000000496000-memory.dmp
memory/4332-3-0x0000000002220000-0x0000000002308000-memory.dmp
memory/4332-8-0x0000000002220000-0x0000000002308000-memory.dmp
memory/4332-11-0x0000000002220000-0x0000000002308000-memory.dmp
memory/4332-13-0x0000000002220000-0x0000000002308000-memory.dmp
memory/4332-14-0x0000000000400000-0x0000000000620000-memory.dmp
memory/4332-16-0x0000000000400000-0x0000000000620000-memory.dmp
memory/4332-15-0x0000000000400000-0x0000000000620000-memory.dmp
memory/4332-18-0x0000000002220000-0x0000000002308000-memory.dmp
memory/4332-23-0x0000000000400000-0x0000000000620000-memory.dmp
memory/4332-83-0x0000000000400000-0x0000000000620000-memory.dmp
memory/4332-81-0x0000000002220000-0x0000000002308000-memory.dmp
memory/4332-21-0x0000000002220000-0x0000000002308000-memory.dmp
memory/4332-1-0x0000000000400000-0x0000000000620000-memory.dmp
memory/5016-38-0x00000000022B0000-0x0000000002398000-memory.dmp
memory/5016-52-0x0000000000400000-0x0000000000620000-memory.dmp
memory/5016-53-0x0000000000400000-0x0000000000620000-memory.dmp
memory/5016-54-0x00000000022B0000-0x0000000002398000-memory.dmp
memory/5016-51-0x0000000000400000-0x0000000000620000-memory.dmp
memory/5016-50-0x0000000000400000-0x0000000000620000-memory.dmp
memory/5016-43-0x00000000022B0000-0x0000000002398000-memory.dmp
memory/5016-47-0x00000000022B0000-0x0000000002398000-memory.dmp
memory/5016-46-0x00000000022B0000-0x0000000002398000-memory.dmp
memory/5016-114-0x00000000022B0000-0x0000000002398000-memory.dmp
memory/5016-116-0x0000000000400000-0x0000000000620000-memory.dmp
memory/5016-125-0x0000000000400000-0x0000000000620000-memory.dmp
memory/5016-44-0x0000000000400000-0x0000000000620000-memory.dmp