Analysis Overview
SHA256
2b6266f14d2ed46e921168fd2b4a5510f40c69cd591800d17ae8ca31fcde28c6
Threat Level: Known bad
The file Chernobyl.exe was found to be: Known bad.
Malicious Activity Summary
Modifies WinLogon for persistence
UAC bypass
Disables Task Manager via registry modification
Possible privilege escalation attempt
Disables RegEdit via registry modification
Checks computer location settings
Modifies file permissions
Checks whether UAC is enabled
Modifies WinLogon
Drops file in System32 directory
Drops file in Windows directory
Unsigned PE
Enumerates physical storage devices
System policy modification
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Modifies registry class
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-03-02 20:52
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-03-02 20:52
Reported
2024-03-02 21:22
Platform
win7-20240221-en
Max time kernel
53s
Max time network
19s
Command Line
Signatures
Modifies WinLogon for persistence
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, cluttscape.exe" | C:\Users\Admin\AppData\Local\Temp\Chernobyl.exe | N/A |
UAC bypass
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" | C:\Users\Admin\AppData\Local\Temp\Chernobyl.exe | N/A |
Disables RegEdit via registry modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\USER\S-1-5-21-778096762-2241304387-192235952-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" | C:\Users\Admin\AppData\Local\Temp\Chernobyl.exe | N/A |
Disables Task Manager via registry modification
Possible privilege escalation attempt
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\icacls.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\icacls.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\icacls.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\icacls.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\icacls.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\icacls.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
Modifies file permissions
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\icacls.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\icacls.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\icacls.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\icacls.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\icacls.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\icacls.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
Checks whether UAC is enabled
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA | C:\Users\Admin\AppData\Local\Temp\Chernobyl.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" | C:\Users\Admin\AppData\Local\Temp\Chernobyl.exe | N/A |
Modifies WinLogon
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\AutoRestartShell = "0" | C:\Users\Admin\AppData\Local\Temp\Chernobyl.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\DisableCAD = "1" | C:\Users\Admin\AppData\Local\Temp\Chernobyl.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\SysWOW64\kill.ico | C:\Users\Admin\AppData\Local\Temp\Chernobyl.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\cluttscape.exe | C:\Users\Admin\AppData\Local\Temp\Chernobyl.exe | N/A |
| File opened for modification | C:\Windows\cluttscape.exe | C:\Users\Admin\AppData\Local\Temp\Chernobyl.exe | N/A |
Enumerates physical storage devices
Modifies registry class
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\Unknown\DefaultIcon\ = "C:\\Windows\\SysWow64\\kill.ico" | C:\Users\Admin\AppData\Local\Temp\Chernobyl.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\Chernobyl.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\Chernobyl.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| Token: SeShutdownPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\Chernobyl.exe | N/A |
Suspicious use of WriteProcessMemory
System policy modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\shutdownwithoutlogon = "0" | C:\Users\Admin\AppData\Local\Temp\Chernobyl.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\UseDefaultTile = "1" | C:\Users\Admin\AppData\Local\Temp\Chernobyl.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" | C:\Users\Admin\AppData\Local\Temp\Chernobyl.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\Chernobyl.exe
"C:\Users\Admin\AppData\Local\Temp\Chernobyl.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k start RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters && exit
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k start RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters && exit
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k start RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters && exit
C:\Windows\SysWOW64\rundll32.exe
RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k start RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters && exit
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k start RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters && exit
C:\Windows\SysWOW64\rundll32.exe
RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k start RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters && exit
C:\Windows\SysWOW64\rundll32.exe
RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters
C:\Windows\SysWOW64\rundll32.exe
RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters
C:\Windows\SysWOW64\rundll32.exe
RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k start RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters && exit
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k start RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters && exit
C:\Windows\SysWOW64\rundll32.exe
RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters
C:\Windows\SysWOW64\rundll32.exe
RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k start RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters && exit
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k start RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters && exit
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k start RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters && exit
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k start RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters && exit
C:\Windows\SysWOW64\rundll32.exe
RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters
C:\Windows\SysWOW64\rundll32.exe
RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters
C:\Windows\SysWOW64\rundll32.exe
RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters
C:\Windows\SysWOW64\rundll32.exe
RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters
C:\Windows\SysWOW64\rundll32.exe
RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k takeown /f C:\Windows\System32\smss.exe && icacls C:\Windows\System32\smss.exe /grant "%username%:F" && exit
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k takeown /f C:\Windows\System32\csrss.exe && icacls C:\Windows\System32\csrss.exe /grant "%username%:F" && exit
C:\Windows\SysWOW64\takeown.exe
takeown /f C:\Windows\System32\smss.exe
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k takeown /f C:\Windows\System32\wininit.exe && icacls C:\Windows\System32\wininit.exe /grant "%username%:F" && exit
C:\Windows\SysWOW64\takeown.exe
takeown /f C:\Windows\System32\csrss.exe
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k takeown /f C:\Windows\System32\LogonUI.exe && icacls C:\Windows\System32\LogonUI.exe /grant "%username%:F" && exit
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k takeown /f C:\Windows\System32\lsass.exe && icacls C:\Windows\System32\lsass.exe /grant "%username%:F" && exit
C:\Windows\SysWOW64\takeown.exe
takeown /f C:\Windows\System32\wininit.exe
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k takeown /f C:\Windows\System32\services.exe && icacls C:\Windows\System32\services.exe /grant "%username%:F" && exit
C:\Windows\SysWOW64\takeown.exe
takeown /f C:\Windows\System32\LogonUI.exe
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k takeown /f C:\Windows\System32\winlogon.exe && icacls C:\Windows\System32\winlogon.exe /grant "%username%:F" && exit
C:\Windows\SysWOW64\takeown.exe
takeown /f C:\Windows\System32\lsass.exe
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k takeown /f C:\Windows\System32\winload.efi && icacls C:\Windows\System32\winload.efi /grant "%username%:F" && exit
C:\Windows\SysWOW64\icacls.exe
icacls C:\Windows\System32\wininit.exe /grant "Admin:F"
C:\Windows\SysWOW64\takeown.exe
takeown /f C:\Windows\System32\services.exe
C:\Windows\SysWOW64\takeown.exe
takeown /f C:\Windows\System32\winlogon.exe
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k takeown /f C:\Windows\System32\winload.exe && icacls C:\Windows\System32\winload.exe /grant "%username%:F" && exit
C:\Windows\SysWOW64\takeown.exe
takeown /f C:\Windows\System32\winload.efi
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k takeown /f C:\Windows\System32\ntoskrnl.exe && icacls C:\Windows\System32\ntoskrnl.exe /grant "%username%:F" && exit
C:\Windows\SysWOW64\takeown.exe
takeown /f C:\Windows\System32\winload.exe
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k takeown /f C:\Windows\System32\svchost.exe && icacls C:\Windows\System32\svchost.exe /grant "%username%:F" && exit
C:\Windows\SysWOW64\takeown.exe
takeown /f C:\Windows\System32\ntoskrnl.exe
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k takeown /f C:\Windows\System32\drivers\gm.dls && icacls C:\Windows\System32\drivers\gm.dls /grant "%username%:F" && exit
C:\Windows\SysWOW64\takeown.exe
takeown /f C:\Windows\System32\svchost.exe
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k takeown /f C:\Windows\System32\drivers\gmreadme.txt && icacls C:\Windows\System32\drivers\gmreadme.txt /grant "%username%:F" && exit
C:\Windows\SysWOW64\icacls.exe
icacls C:\Windows\System32\ntoskrnl.exe /grant "Admin:F"
C:\Windows\SysWOW64\icacls.exe
icacls C:\Windows\System32\svchost.exe /grant "Admin:F"
C:\Windows\SysWOW64\takeown.exe
takeown /f C:\Windows\System32\drivers\gm.dls
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k takeown /f C:\Windows\System32\drivers\wimmount.sys && icacls C:\Windows\System32\drivers\wimmount.sys /grant "%username%:F" && exit
C:\Windows\SysWOW64\icacls.exe
icacls C:\Windows\System32\drivers\gm.dls /grant "Admin:F"
C:\Windows\SysWOW64\takeown.exe
takeown /f C:\Windows\System32\drivers\gmreadme.txt
C:\Windows\SysWOW64\icacls.exe
icacls C:\Windows\System32\drivers\gmreadme.txt /grant "Admin:F"
C:\Windows\SysWOW64\takeown.exe
takeown /f C:\Windows\System32\drivers\wimmount.sys
C:\Windows\SysWOW64\icacls.exe
icacls C:\Windows\System32\drivers\wimmount.sys /grant "Admin:F"
Network
Files
memory/2176-0-0x0000000001000000-0x000000000105C000-memory.dmp
memory/2176-1-0x0000000074800000-0x0000000074EEE000-memory.dmp
memory/2176-2-0x0000000004A20000-0x0000000004A60000-memory.dmp
C:\Users\Admin\Desktop\œ♫¼7♦×õ◙čε8ä▐♫╩µÿσε×4Æ«×≈▌œ☻řŸž¶ø¢¥½▀µ▄œ™◙—¶3╧6é73×☻◘♀♣▄ěε¼é○£×Ƽ↑9▼╧ñ≈╤²č×3ǽí7╔ä½øæ▬▀¬4õř↕íń╚╚řä5♪
| MD5 | 9e1e5883c74742a497cf5c272ccd2321 |
| SHA1 | 2cf33e34d08b8e17743a60352baffef4b6f02dee |
| SHA256 | ca687b6a7c3d29b566f3e1988b9f877b51d9a83ee25ffe0755a8dcd3eb5f434a |
| SHA512 | f2284f0c624cc07a65c16f87865bb98aaa176b1d8b45cd4fbcc1143c9c2297fe6b1d4db55ef054be2bc151c8cc25ff4da7c997b7d38dae3dccd2ffe1c3c01a6b |
memory/2176-307-0x0000000074800000-0x0000000074EEE000-memory.dmp
memory/2176-308-0x0000000004A20000-0x0000000004A60000-memory.dmp
memory/2176-309-0x0000000004A20000-0x0000000004A60000-memory.dmp
memory/2176-310-0x0000000004A20000-0x0000000004A60000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-03-02 20:52
Reported
2024-03-02 21:22
Platform
win10v2004-20240226-en
Max time kernel
84s
Max time network
72s
Command Line
Signatures
Modifies WinLogon for persistence
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, cluttscape.exe" | C:\Users\Admin\AppData\Local\Temp\Chernobyl.exe | N/A |
UAC bypass
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" | C:\Users\Admin\AppData\Local\Temp\Chernobyl.exe | N/A |
Disables RegEdit via registry modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" | C:\Users\Admin\AppData\Local\Temp\Chernobyl.exe | N/A |
Disables Task Manager via registry modification
Possible privilege escalation attempt
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\icacls.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\icacls.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\icacls.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\icacls.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\Chernobyl.exe | N/A |
Modifies file permissions
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\icacls.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\icacls.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\icacls.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\icacls.exe | N/A |
Checks whether UAC is enabled
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA | C:\Users\Admin\AppData\Local\Temp\Chernobyl.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" | C:\Users\Admin\AppData\Local\Temp\Chernobyl.exe | N/A |
Modifies WinLogon
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\AutoRestartShell = "0" | C:\Users\Admin\AppData\Local\Temp\Chernobyl.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\DisableCAD = "1" | C:\Users\Admin\AppData\Local\Temp\Chernobyl.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\SysWOW64\kill.ico | C:\Users\Admin\AppData\Local\Temp\Chernobyl.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\cluttscape.exe | C:\Users\Admin\AppData\Local\Temp\Chernobyl.exe | N/A |
| File opened for modification | C:\Windows\cluttscape.exe | C:\Users\Admin\AppData\Local\Temp\Chernobyl.exe | N/A |
Enumerates physical storage devices
Modifies registry class
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\Unknown\DefaultIcon\ = "C:\\Windows\\SysWow64\\kill.ico" | C:\Users\Admin\AppData\Local\Temp\Chernobyl.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\Chernobyl.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\Chernobyl.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| Token: SeShutdownPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\Chernobyl.exe | N/A |
Suspicious use of WriteProcessMemory
System policy modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\shutdownwithoutlogon = "0" | C:\Users\Admin\AppData\Local\Temp\Chernobyl.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\UseDefaultTile = "1" | C:\Users\Admin\AppData\Local\Temp\Chernobyl.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" | C:\Users\Admin\AppData\Local\Temp\Chernobyl.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\Chernobyl.exe
"C:\Users\Admin\AppData\Local\Temp\Chernobyl.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k start RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters && exit
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k start RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters && exit
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k start RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters && exit
C:\Windows\SysWOW64\rundll32.exe
RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k start RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters && exit
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k start RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters && exit
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k start RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters && exit
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k start RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters && exit
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k start RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters && exit
C:\Windows\SysWOW64\rundll32.exe
RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k start RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters && exit
C:\Windows\SysWOW64\rundll32.exe
RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k start RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters && exit
C:\Windows\SysWOW64\rundll32.exe
RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k start RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters && exit
C:\Windows\SysWOW64\rundll32.exe
RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k start RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters && exit
C:\Windows\SysWOW64\rundll32.exe
RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters
C:\Windows\SysWOW64\rundll32.exe
RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters
C:\Windows\SysWOW64\rundll32.exe
RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters
C:\Windows\SysWOW64\rundll32.exe
RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters
C:\Windows\SysWOW64\rundll32.exe
RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters
C:\Windows\SysWOW64\rundll32.exe
RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters
C:\Windows\SysWOW64\rundll32.exe
RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k takeown /f C:\Windows\System32\smss.exe && icacls C:\Windows\System32\smss.exe /grant "%username%:F" && exit
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k takeown /f C:\Windows\System32\csrss.exe && icacls C:\Windows\System32\csrss.exe /grant "%username%:F" && exit
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k takeown /f C:\Windows\System32\wininit.exe && icacls C:\Windows\System32\wininit.exe /grant "%username%:F" && exit
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k takeown /f C:\Windows\System32\LogonUI.exe && icacls C:\Windows\System32\LogonUI.exe /grant "%username%:F" && exit
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k takeown /f C:\Windows\System32\lsass.exe && icacls C:\Windows\System32\lsass.exe /grant "%username%:F" && exit
C:\Windows\SysWOW64\takeown.exe
takeown /f C:\Windows\System32\smss.exe
C:\Windows\SysWOW64\takeown.exe
takeown /f C:\Windows\System32\lsass.exe
C:\Windows\SysWOW64\takeown.exe
takeown /f C:\Windows\System32\LogonUI.exe
C:\Windows\SysWOW64\takeown.exe
takeown /f C:\Windows\System32\wininit.exe
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k takeown /f C:\Windows\System32\services.exe && icacls C:\Windows\System32\services.exe /grant "%username%:F" && exit
C:\Windows\SysWOW64\takeown.exe
takeown /f C:\Windows\System32\csrss.exe
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k takeown /f C:\Windows\System32\winlogon.exe && icacls C:\Windows\System32\winlogon.exe /grant "%username%:F" && exit
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k takeown /f C:\Windows\System32\winload.efi && icacls C:\Windows\System32\winload.efi /grant "%username%:F" && exit
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k takeown /f C:\Windows\System32\winload.exe && icacls C:\Windows\System32\winload.exe /grant "%username%:F" && exit
C:\Windows\SysWOW64\takeown.exe
takeown /f C:\Windows\System32\services.exe
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k takeown /f C:\Windows\System32\ntoskrnl.exe && icacls C:\Windows\System32\ntoskrnl.exe /grant "%username%:F" && exit
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k takeown /f C:\Windows\System32\svchost.exe && icacls C:\Windows\System32\svchost.exe /grant "%username%:F" && exit
C:\Windows\SysWOW64\takeown.exe
takeown /f C:\Windows\System32\winlogon.exe
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k takeown /f C:\Windows\System32\drivers\afunix.sys && icacls C:\Windows\System32\drivers\afunix.sys /grant "%username%:F" && exit
C:\Windows\SysWOW64\takeown.exe
takeown /f C:\Windows\System32\winload.exe
C:\Windows\SysWOW64\takeown.exe
takeown /f C:\Windows\System32\winload.efi
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k takeown /f C:\Windows\System32\drivers\gm.dls && icacls C:\Windows\System32\drivers\gm.dls /grant "%username%:F" && exit
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k takeown /f C:\Windows\System32\drivers\gmreadme.txt && icacls C:\Windows\System32\drivers\gmreadme.txt /grant "%username%:F" && exit
C:\Windows\SysWOW64\takeown.exe
takeown /f C:\Windows\System32\ntoskrnl.exe
C:\Windows\SysWOW64\takeown.exe
takeown /f C:\Windows\System32\svchost.exe
C:\Windows\SysWOW64\takeown.exe
takeown /f C:\Windows\System32\drivers\afunix.sys
C:\Windows\SysWOW64\takeown.exe
takeown /f C:\Windows\System32\drivers\gm.dls
C:\Windows\SysWOW64\icacls.exe
icacls C:\Windows\System32\svchost.exe /grant "Admin:F"
C:\Windows\SysWOW64\icacls.exe
icacls C:\Windows\System32\drivers\gm.dls /grant "Admin:F"
C:\Windows\SysWOW64\takeown.exe
takeown /f C:\Windows\System32\drivers\gmreadme.txt
C:\Windows\SysWOW64\icacls.exe
icacls C:\Windows\System32\drivers\afunix.sys /grant "Admin:F"
C:\Windows\SysWOW64\icacls.exe
icacls C:\Windows\System32\drivers\gmreadme.txt /grant "Admin:F"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 178.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 21.177.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.228.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.126.166.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 134.71.91.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
Files
memory/4784-0-0x0000000000010000-0x000000000006C000-memory.dmp
memory/4784-1-0x0000000074920000-0x00000000750D0000-memory.dmp
memory/4784-2-0x00000000049E0000-0x0000000004A72000-memory.dmp
memory/4784-3-0x0000000005030000-0x00000000055D4000-memory.dmp
memory/4784-4-0x0000000004DD0000-0x0000000004DE0000-memory.dmp
C:\Users\Admin\Desktop\č®↑∩√6◄¶◘♣£☼♠▼5Çœ¼5☻ń²▬ř2ï☻8ï4►č►äε2¶πß▐öσ♂♪í¾╤▄7ó▀♫▌3█ÿń◘35╬6√Ƕ╩π█╧♀½¤σń√×≈►∩▄▄ř◙∩¼◙╚Ÿ╥6█▐↑ž3æ♀šφ▐
| MD5 | 9e1e5883c74742a497cf5c272ccd2321 |
| SHA1 | 2cf33e34d08b8e17743a60352baffef4b6f02dee |
| SHA256 | ca687b6a7c3d29b566f3e1988b9f877b51d9a83ee25ffe0755a8dcd3eb5f434a |
| SHA512 | f2284f0c624cc07a65c16f87865bb98aaa176b1d8b45cd4fbcc1143c9c2297fe6b1d4db55ef054be2bc151c8cc25ff4da7c997b7d38dae3dccd2ffe1c3c01a6b |
memory/4784-309-0x0000000005CF0000-0x0000000005CFA000-memory.dmp
memory/4784-310-0x0000000074920000-0x00000000750D0000-memory.dmp
memory/4784-311-0x0000000004DD0000-0x0000000004DE0000-memory.dmp
Analysis: behavioral3
Detonation Overview
Submitted
2024-03-02 20:52
Reported
2024-03-02 21:22
Platform
win11-20240221-en
Max time kernel
56s
Max time network
15s
Command Line
Signatures
Modifies WinLogon for persistence
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, cluttscape.exe" | C:\Users\Admin\AppData\Local\Temp\Chernobyl.exe | N/A |
UAC bypass
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" | C:\Users\Admin\AppData\Local\Temp\Chernobyl.exe | N/A |
Disables RegEdit via registry modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\USER\S-1-5-21-647252928-2816094679-1307623958-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" | C:\Users\Admin\AppData\Local\Temp\Chernobyl.exe | N/A |
Disables Task Manager via registry modification
Possible privilege escalation attempt
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\icacls.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\icacls.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\icacls.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\icacls.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
Modifies file permissions
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\icacls.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\icacls.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\icacls.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\icacls.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
Checks whether UAC is enabled
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" | C:\Users\Admin\AppData\Local\Temp\Chernobyl.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA | C:\Users\Admin\AppData\Local\Temp\Chernobyl.exe | N/A |
Modifies WinLogon
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\AutoRestartShell = "0" | C:\Users\Admin\AppData\Local\Temp\Chernobyl.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\DisableCAD = "1" | C:\Users\Admin\AppData\Local\Temp\Chernobyl.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\SysWOW64\kill.ico | C:\Users\Admin\AppData\Local\Temp\Chernobyl.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\cluttscape.exe | C:\Users\Admin\AppData\Local\Temp\Chernobyl.exe | N/A |
| File opened for modification | C:\Windows\cluttscape.exe | C:\Users\Admin\AppData\Local\Temp\Chernobyl.exe | N/A |
Enumerates physical storage devices
Modifies registry class
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\Unknown\DefaultIcon\ = "C:\\Windows\\SysWow64\\kill.ico" | C:\Users\Admin\AppData\Local\Temp\Chernobyl.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\Chernobyl.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\Chernobyl.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| Token: SeShutdownPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\Chernobyl.exe | N/A |
Suspicious use of WriteProcessMemory
System policy modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\shutdownwithoutlogon = "0" | C:\Users\Admin\AppData\Local\Temp\Chernobyl.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\UseDefaultTile = "1" | C:\Users\Admin\AppData\Local\Temp\Chernobyl.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" | C:\Users\Admin\AppData\Local\Temp\Chernobyl.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\Chernobyl.exe
"C:\Users\Admin\AppData\Local\Temp\Chernobyl.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k start RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters && exit
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k start RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters && exit
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k start RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters && exit
C:\Windows\SysWOW64\rundll32.exe
RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k start RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters && exit
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k start RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters && exit
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k start RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters && exit
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k start RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters && exit
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k start RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters && exit
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k start RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters && exit
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k start RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters && exit
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k start RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters && exit
C:\Windows\SysWOW64\rundll32.exe
RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k start RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters && exit
C:\Windows\SysWOW64\rundll32.exe
RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters
C:\Windows\SysWOW64\rundll32.exe
RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters
C:\Windows\SysWOW64\rundll32.exe
RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters
C:\Windows\SysWOW64\rundll32.exe
RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters
C:\Windows\SysWOW64\rundll32.exe
RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters
C:\Windows\SysWOW64\rundll32.exe
RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters
C:\Windows\SysWOW64\rundll32.exe
RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters
C:\Windows\SysWOW64\rundll32.exe
RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters
C:\Windows\SysWOW64\rundll32.exe
RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters
C:\Windows\SysWOW64\rundll32.exe
RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k takeown /f C:\Windows\System32\smss.exe && icacls C:\Windows\System32\smss.exe /grant "%username%:F" && exit
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k takeown /f C:\Windows\System32\csrss.exe && icacls C:\Windows\System32\csrss.exe /grant "%username%:F" && exit
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k takeown /f C:\Windows\System32\wininit.exe && icacls C:\Windows\System32\wininit.exe /grant "%username%:F" && exit
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k takeown /f C:\Windows\System32\LogonUI.exe && icacls C:\Windows\System32\LogonUI.exe /grant "%username%:F" && exit
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k takeown /f C:\Windows\System32\lsass.exe && icacls C:\Windows\System32\lsass.exe /grant "%username%:F" && exit
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k takeown /f C:\Windows\System32\services.exe && icacls C:\Windows\System32\services.exe /grant "%username%:F" && exit
C:\Windows\SysWOW64\takeown.exe
takeown /f C:\Windows\System32\csrss.exe
C:\Windows\SysWOW64\takeown.exe
takeown /f C:\Windows\System32\smss.exe
C:\Windows\SysWOW64\takeown.exe
takeown /f C:\Windows\System32\wininit.exe
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k takeown /f C:\Windows\System32\winlogon.exe && icacls C:\Windows\System32\winlogon.exe /grant "%username%:F" && exit
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k takeown /f C:\Windows\System32\winload.efi && icacls C:\Windows\System32\winload.efi /grant "%username%:F" && exit
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k takeown /f C:\Windows\System32\winload.exe && icacls C:\Windows\System32\winload.exe /grant "%username%:F" && exit
C:\Windows\SysWOW64\takeown.exe
takeown /f C:\Windows\System32\LogonUI.exe
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k takeown /f C:\Windows\System32\ntoskrnl.exe && icacls C:\Windows\System32\ntoskrnl.exe /grant "%username%:F" && exit
C:\Windows\SysWOW64\takeown.exe
takeown /f C:\Windows\System32\services.exe
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k takeown /f C:\Windows\System32\svchost.exe && icacls C:\Windows\System32\svchost.exe /grant "%username%:F" && exit
C:\Windows\SysWOW64\takeown.exe
takeown /f C:\Windows\System32\lsass.exe
C:\Windows\SysWOW64\takeown.exe
takeown /f C:\Windows\System32\winlogon.exe
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k takeown /f C:\Windows\System32\drivers\afunix.sys && icacls C:\Windows\System32\drivers\afunix.sys /grant "%username%:F" && exit
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k takeown /f C:\Windows\System32\drivers\gm.dls && icacls C:\Windows\System32\drivers\gm.dls /grant "%username%:F" && exit
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k takeown /f C:\Windows\System32\drivers\gmreadme.txt && icacls C:\Windows\System32\drivers\gmreadme.txt /grant "%username%:F" && exit
C:\Windows\SysWOW64\takeown.exe
takeown /f C:\Windows\System32\winload.exe
C:\Windows\SysWOW64\takeown.exe
takeown /f C:\Windows\System32\svchost.exe
C:\Windows\SysWOW64\takeown.exe
takeown /f C:\Windows\System32\winload.efi
C:\Windows\SysWOW64\takeown.exe
takeown /f C:\Windows\System32\ntoskrnl.exe
C:\Windows\SysWOW64\takeown.exe
takeown /f C:\Windows\System32\drivers\gmreadme.txt
C:\Windows\SysWOW64\icacls.exe
icacls C:\Windows\System32\svchost.exe /grant "Admin:F"
C:\Windows\SysWOW64\takeown.exe
takeown /f C:\Windows\System32\drivers\afunix.sys
C:\Windows\SysWOW64\takeown.exe
takeown /f C:\Windows\System32\drivers\gm.dls
C:\Windows\SysWOW64\icacls.exe
icacls C:\Windows\System32\drivers\gmreadme.txt /grant "Admin:F"
C:\Windows\SysWOW64\icacls.exe
icacls C:\Windows\System32\drivers\gm.dls /grant "Admin:F"
C:\Windows\SysWOW64\icacls.exe
icacls C:\Windows\System32\drivers\afunix.sys /grant "Admin:F"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 14.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
Files
memory/4944-0-0x0000000000270000-0x00000000002CC000-memory.dmp
memory/4944-1-0x0000000074700000-0x0000000074EB1000-memory.dmp
memory/4944-2-0x0000000004D40000-0x0000000004DD2000-memory.dmp
memory/4944-3-0x0000000005390000-0x0000000005936000-memory.dmp
memory/4944-4-0x0000000004E50000-0x0000000004E60000-memory.dmp
C:\Users\Admin\Desktop\∞∩—╠õŸ±•ßó¥╧╬—₧í7↕£♣¶¥◙☼í•◙╚éě♣•¢Â╤╥™ž¶8ž▄7♪♂☼↑Ÿ•—¥ńě☺↑í²—☺¼9▬∞╠♣1ßåœ╠íï—◄π▼☺∩∩éå╥♠í«8₧9▲♥1◙▬4—☺²♥▄8
| MD5 | 9e1e5883c74742a497cf5c272ccd2321 |
| SHA1 | 2cf33e34d08b8e17743a60352baffef4b6f02dee |
| SHA256 | ca687b6a7c3d29b566f3e1988b9f877b51d9a83ee25ffe0755a8dcd3eb5f434a |
| SHA512 | f2284f0c624cc07a65c16f87865bb98aaa176b1d8b45cd4fbcc1143c9c2297fe6b1d4db55ef054be2bc151c8cc25ff4da7c997b7d38dae3dccd2ffe1c3c01a6b |
memory/4944-309-0x0000000005070000-0x000000000507A000-memory.dmp
memory/4944-310-0x0000000074700000-0x0000000074EB1000-memory.dmp
memory/4944-311-0x0000000004E50000-0x0000000004E60000-memory.dmp