Analysis
- max time kernel
149s - max time network
149s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
- submitted
22/05/2026, 13:07
General
- Target 2026-05-22_ba32833674eea39ae3b546461226cc43_elex_smoke-loader_stop.exe
- Size 1.7MB
- Sample260522-qcxrcset5x
- SHA256 8115fecba76b58f239a8d146c8f2a617edddc0c4c224e3143a27bc91589f6f1d
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 31 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\2026-05-22_ba32833674eea39ae3b546461226cc43_elex_smoke-loader_stop.exe"C:\Users\Admin\AppData\Local\Temp\2026-05-22_ba32833674eea39ae3b546461226cc43_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
-
-
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/764-105-0x00000000021D0000-0x00000000022B8000-memory.dmp
memory/764-102-0x0000000000400000-0x0000000000620000-memory.dmp
memory/764-103-0x0000000000400000-0x0000000000620000-memory.dmp
memory/764-104-0x0000000000400000-0x0000000000620000-memory.dmp
memory/764-101-0x0000000000400000-0x0000000000620000-memory.dmp
memory/764-98-0x00000000021D0000-0x00000000022B8000-memory.dmp
memory/764-97-0x00000000021D0000-0x00000000022B8000-memory.dmp
memory/764-90-0x00000000021D0000-0x00000000022B8000-memory.dmp
memory/764-95-0x00000000021D0000-0x00000000022B8000-memory.dmp
memory/764-110-0x00000000021D0000-0x00000000022B8000-memory.dmp
memory/764-112-0x0000000000400000-0x0000000000620000-memory.dmp
memory/3624-18-0x0000000000A00000-0x0000000000AE8000-memory.dmp
memory/3624-10-0x0000000000A00000-0x0000000000AE8000-memory.dmp
memory/3624-2-0x0000000000495000-0x0000000000496000-memory.dmp
memory/3624-8-0x0000000000A00000-0x0000000000AE8000-memory.dmp
memory/3624-3-0x0000000000A00000-0x0000000000AE8000-memory.dmp
memory/3624-11-0x0000000000A00000-0x0000000000AE8000-memory.dmp
memory/3624-13-0x0000000000A00000-0x0000000000AE8000-memory.dmp
memory/3624-14-0x0000000000400000-0x0000000000620000-memory.dmp
memory/3624-15-0x0000000000400000-0x0000000000620000-memory.dmp
memory/3624-17-0x0000000000400000-0x0000000000620000-memory.dmp
memory/3624-16-0x0000000000400000-0x0000000000620000-memory.dmp
memory/3624-64-0x0000000000400000-0x0000000000620000-memory.dmp
memory/3624-58-0x0000000000A00000-0x0000000000AE8000-memory.dmp
memory/3624-23-0x0000000000400000-0x0000000000620000-memory.dmp
memory/3624-21-0x0000000000A00000-0x0000000000AE8000-memory.dmp
memory/3624-1-0x0000000000400000-0x0000000000620000-memory.dmp
memory/4736-43-0x00000000021C0000-0x00000000022A8000-memory.dmp
memory/4736-53-0x0000000000400000-0x0000000000620000-memory.dmp
memory/4736-50-0x0000000000400000-0x0000000000620000-memory.dmp
memory/4736-52-0x0000000000400000-0x0000000000620000-memory.dmp
memory/4736-54-0x00000000021C0000-0x00000000022A8000-memory.dmp
memory/4736-51-0x0000000000400000-0x0000000000620000-memory.dmp
memory/4736-44-0x0000000000400000-0x0000000000620000-memory.dmp
memory/4736-47-0x00000000021C0000-0x00000000022A8000-memory.dmp
memory/4736-46-0x00000000021C0000-0x00000000022A8000-memory.dmp
memory/4736-113-0x00000000021C0000-0x00000000022A8000-memory.dmp
memory/4736-115-0x0000000000400000-0x0000000000620000-memory.dmp
memory/4736-122-0x0000000000400000-0x0000000000620000-memory.dmp
memory/4736-38-0x00000000021C0000-0x00000000022A8000-memory.dmp