Analysis
- max time kernel
148s - max time network
127s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
24/09/2026, 01:00
General
- Target ZXTERNAL.bat
- Size 105B
- Sample260924-bcztdsys2l
- SHA256 56bb13497afa8c967a84aa5dbeea6f80f811db9bc734b703c878faf9cb24dcd3
Malware Config
Signatures
- Badlisted process makes network request 2 IoCs
Network request originating from process or tool commonly abused by malware.
- Contacts third-party web service commonly abused for C2 1 TTPs 2 IoCs
Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.
- Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Using powershell.exe command.
- Executes a command shell one-liner 1 TTPs 1 IoCs
Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 2 IoCs
Processes
-
C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\ZXTERNAL.bat"1⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -NoProfile -ExecutionPolicy Bypass -File "C:\Users\Admin\AppData\Local\Temp\zxternal_updater.ps1"2⤵
- Badlisted process makes network request
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\zx1.exe"C:\Users\Admin\AppData\Local\Temp\zx1.exe"3⤵
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
__PSScriptPolicyTest_tzusvo3z.zub.ps1
memory/2644-20-0x00007FFDD67C0000-0x00007FFDD67D7000-memory.dmp
memory/5620-11-0x00007FFDC6AD0000-0x00007FFDC7474000-memory.dmp
memory/5620-7-0x0000014F365F0000-0x0000014F36612000-memory.dmp
memory/5620-9-0x00007FFDC6AD0000-0x00007FFDC7474000-memory.dmp
memory/5620-10-0x00007FFDC6AD0000-0x00007FFDC7474000-memory.dmp
memory/5620-0-0x00007FFDC6C5F000-0x00007FFDC6C60000-memory.dmp
memory/5620-12-0x00007FFDC6AD0000-0x00007FFDC7474000-memory.dmp
memory/5620-13-0x00007FFDC6AD0000-0x00007FFDC7474000-memory.dmp
memory/5620-14-0x00007FFDC6AD0000-0x00007FFDC7474000-memory.dmp
memory/5620-15-0x00007FFDC6AD0000-0x00007FFDC7474000-memory.dmp
memory/5620-16-0x00007FFDC6AD0000-0x00007FFDC7474000-memory.dmp
memory/5620-18-0x00007FFDC6AD0000-0x00007FFDC7474000-memory.dmp
memory/5620-19-0x00007FFDC6AD0000-0x00007FFDC7474000-memory.dmp
memory/5620-6-0x00007FFDC6AD0000-0x00007FFDC7474000-memory.dmp