Analysis
- max time kernel
70s - max time network
64s - platform
windows10-ltsc_2021_x64 - resource
win10ltsc2021-20260911-en - resource tags
arch:x64arch:x86image:win10ltsc2021-20260911-enlocale:en-usos:windows10-ltsc_2021-x64systemwindows - submitted
07/11/2026, 12:48
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
ETroJanDW.exe
Resource
win10ltsc2021-20260911-en
6 signatures
150 seconds
Errors
Reason
Machine shutdown
General
- Target ETroJanDW.exe
- Size 9.5MB
- Sample261107-p14ddab13y
- SHA256 dfb1113c33e49a356f723f59836e37b6272d137bb59b5ecba3b94744f8cb0f20
- MD5 3329288740d8295499017ffc38502722
- SHA1 acb2e2f9ccfa0d83f81a743508fd261a5d31895f
- SHA512 fc4ac949b0e071b1ad47c3d804bd158567654d172b8e80b957fc25858ce90997d5541fd569fa1f7335f1d881a751583f87e63090540280ce008400745fa51592
- SSDEEP 196608:FCdw2mwvgXSN+BkMlHYq9mW59ygzAn56N8AYhoxU:FvHaIBLHYo9yl56i3h4
- TLSH T1C1A6334E2CEF80F5DAC02634C62F9FDB33F253A34C818C1CADC5B94A9966E75603A595
- MD5 SHA1 SHA512 SSDEEP TLSH
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.
description ioc Process File opened for modification \??\PhysicalDrive0 ETroJanDW.exe - Executes a command shell one-liner 1 TTPs 3 IoCs
Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.
pid Process 1972 cmd.exe 1212 cmd.exe 5740 cmd.exe - System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language ETroJanDW.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe - Checks SCSI registry key(s) 3 TTPs 4 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Device Parameters\Partmgr ETroJanDW.exe Set value (data) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Device Parameters\Partmgr\PartitionTableCache = 00000000000000000000000090fffa460000000000000000000000000000000000000000000000000000000000000000 ETroJanDW.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Device Parameters ETroJanDW.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Device Parameters ETroJanDW.exe - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 5436 ETroJanDW.exe 5436 ETroJanDW.exe - Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 5436 wrote to memory of 1972 5436 ETroJanDW.exe 92 PID 5436 wrote to memory of 1212 5436 ETroJanDW.exe 93 PID 5436 wrote to memory of 5740 5436 ETroJanDW.exe 94
Processes
-
C:\Users\Admin\AppData\Local\Temp\ETroJanDW.exe"C:\Users\Admin\AppData\Local\Temp\ETroJanDW.exe"1⤵
- Writes to the Master Boot Record (MBR)
- System Location Discovery: System Language Discovery
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:5436 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c color 4f2⤵
- Executes a command shell one-liner
- System Location Discovery: System Language Discovery
PID:1972
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c title ETroJanDW2⤵
- Executes a command shell one-liner
- System Location Discovery: System Language Discovery
PID:1212
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c taskkill /f /im wininit.exe2⤵
- Executes a command shell one-liner
PID:5740
-