seven | 7d373ccb96d1dbb1856ef31afa87c2112a0c1795a796ab01cb154700288afec5

Analysis

max time kernel
57s
max time network
61s
platform
windows11-21h2_x64
resource
win11-20260130-en
resource tags

arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
11/05/2026, 22:52

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Reason

Machine shutdown

General

Target
Ransomware/7ev3n.exe
Size 315KB
Sample260511-2tm42abt9v
SHA256 7d373ccb96d1dbb1856ef31afa87c2112a0c1795a796ab01cb154700288afec5
MD5 9f8bc96c96d43ecb69f883388d228754
SHA1 61ed25a706afa2f6684bb4d64f69c5fb29d20953
SHA512 550a891c1059f58aa983138caf65a7ea9c326cb1b94c15f3e7594128f6e9f1295b9c2dbc0925637dba7c94e938083fffc6a63dc7c2e5b1e247679931cce505c6
SSDEEP 6144:BswDdb2MemnBVlz0SoVbO4A6OA4Trl28TyT6llY1/I8cWJWlfTXv:BswRSslz0P1OdFXJlJ8buXv
TLSH
T183643A54BC8840ADC03693F00AA2C6A5633EF633371569ABBFDD53781E255E1E733A16
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

defense_evasion discovery evasion execution seven persistence ransomware trojan

Malware Config

Signatures

Family: Seven, SevenCrypt, 7ev3n
Seven aka SevenCrypt or 7ev3n is a ransomware.
ransomware seven

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "C:\\Users\\Admin\\AppData\\Local\\system.exe"	reg.exe

UAC bypass 3 TTPs 1 IoCs

defense_evasion trojan

Bypass User Account Control

T1548.002

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	reg.exe

Modifies boot configuration data using bcdedit 1 TTPs 5 IoCs

ransomware evasion

Inhibit System Recovery

T1490

pid	Process
4316	bcdedit.exe
1776	bcdedit.exe
2580	bcdedit.exe
1636	bcdedit.exe
5904	bcdedit.exe

Executes dropped EXE 2 IoCs

pid	Process
1872	system.exe
3388	system.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\System = "C:\\Users\\Admin\\AppData\\Local\\system.exe"	reg.exe

System Location Discovery: System Language Discovery 1 TTPs 22 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7ev3n.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	system.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	SCHTASKS.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	shutdown.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	system.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe

Modifies data under HKEY_USERS 15 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\StartColorMenu = "4290799360"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "4292114432"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationBlurBalance = "1"	LogonUI.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = 99ebff004cc2ff000091f8000078d4000067c000003e9200001a6800f7630c00	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglow = "3288365268"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglowBalance = "10"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History\AutoColor = "0"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365268"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColorBalance = "89"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "74"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292114432"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1"	LogonUI.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
5036	SCHTASKS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	5220	shutdown.exe
Token: SeRemoteShutdownPrivilege	5220	shutdown.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3688	PickerHost.exe
3316	LogonUI.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 5944 wrote to memory of 1872	5944	7ev3n.exe	79
PID 1872 wrote to memory of 4996	1872	system.exe	80
PID 1872 wrote to memory of 5036	1872	system.exe	81
PID 1872 wrote to memory of 4792	1872	system.exe	90
PID 1872 wrote to memory of 5840	1872	system.exe	91
PID 1872 wrote to memory of 5376	1872	system.exe	92
PID 1872 wrote to memory of 3004	1872	system.exe	93
PID 1872 wrote to memory of 3836	1872	system.exe	94
PID 1872 wrote to memory of 3220	1872	system.exe	95
PID 4792 wrote to memory of 1228	4792	cmd.exe	102
PID 3220 wrote to memory of 2780	3220	cmd.exe	103
PID 5376 wrote to memory of 3616	5376	cmd.exe	104
PID 3004 wrote to memory of 3080	3004	cmd.exe	105
PID 5840 wrote to memory of 6116	5840	cmd.exe	106
PID 3836 wrote to memory of 5564	3836	cmd.exe	107
PID 3388 wrote to memory of 3804	3388	system.exe	110
PID 1872 wrote to memory of 3356	1872	system.exe	113
PID 3356 wrote to memory of 3012	3356	cmd.exe	115
PID 1872 wrote to memory of 5544	1872	system.exe	116
PID 5544 wrote to memory of 5220	5544	cmd.exe	118

C:\Users\Admin\AppData\Local\Temp\Ransomware\7ev3n.exe
"C:\Users\Admin\AppData\Local\Temp\Ransomware\7ev3n.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5944
- C:\Users\Admin\AppData\Local\system.exe
  "C:\Users\Admin\AppData\Local\system.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1872
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\del.bat
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4996
- - C:\Windows\SysWOW64\SCHTASKS.exe
    C:\Windows\System32\SCHTASKS.exe /create /SC ONLOGON /TN uac /TR "C:\Users\Admin\AppData\Local\bcd.bat" /RL HIGHEST /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:5036
- - C:\windows\SysWOW64\cmd.exe
    C:\windows\system32\cmd.exe /c REG ADD "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon" /v "Shell" /t REG_SZ /d "C:\Users\Admin\AppData\Local\system.exe" /f /reg:64
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4792
  - - C:\Windows\SysWOW64\reg.exe
      REG ADD "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon" /v "Shell" /t REG_SZ /d "C:\Users\Admin\AppData\Local\system.exe" /f /reg:64
      4⤵
      Modifies WinLogon for persistence
      System Location Discovery: System Language Discovery
      PID:1228
- - C:\windows\SysWOW64\cmd.exe
    C:\windows\system32\cmd.exe /c REG ADD "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "System" /t REG_SZ /d "C:\Users\Admin\AppData\Local\system.exe" /f /reg:64
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:5840
  - - C:\Windows\SysWOW64\reg.exe
      REG ADD "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "System" /t REG_SZ /d "C:\Users\Admin\AppData\Local\system.exe" /f /reg:64
      4⤵
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      PID:6116
- - C:\windows\SysWOW64\cmd.exe
    C:\windows\system32\cmd.exe /c REG ADD "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Keyboard Layout" /v "Scancode Map" /t REG_BINARY /d "00000000000000001700000000003800000038e000005be000005ce00000360000001d0000001de000000f000000010000001c0000003e0000003b00000044000000450000003d0000005de000000000" /f /reg:64
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:5376
  - - C:\Windows\SysWOW64\reg.exe
      REG ADD "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Keyboard Layout" /v "Scancode Map" /t REG_BINARY /d "00000000000000001700000000003800000038e000005be000005ce00000360000001d0000001de000000f000000010000001c0000003e0000003b00000044000000450000003d0000005de000000000" /f /reg:64
      4⤵
      System Location Discovery: System Language Discovery
      PID:3616
- - C:\windows\SysWOW64\cmd.exe
    C:\windows\system32\cmd.exe /c REG ADD "HKEY_CURRENT_USER\Control Panel\Accessibility\StickyKeys" /v "Flags" /t REG_SZ /d 506 /f /reg:64
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3004
  - - C:\Windows\SysWOW64\reg.exe
      REG ADD "HKEY_CURRENT_USER\Control Panel\Accessibility\StickyKeys" /v "Flags" /t REG_SZ /d 506 /f /reg:64
      4⤵
      System Location Discovery: System Language Discovery
      PID:3080
- - C:\windows\SysWOW64\cmd.exe
    C:\windows\system32\cmd.exe /c REG ADD "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion" /v "rgd_bcd_condition" /t REG_SZ /d 1 /f /reg:64
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3836
  - - C:\Windows\SysWOW64\reg.exe
      REG ADD "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion" /v "rgd_bcd_condition" /t REG_SZ /d 1 /f /reg:64
      4⤵
      System Location Discovery: System Language Discovery
      PID:5564
- - C:\windows\SysWOW64\cmd.exe
    C:\windows\system32\cmd.exe /c REG ADD "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System" /v "EnableLUA" /t REG_DWORD /d 0 /f /reg:64
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3220
  - - C:\Windows\SysWOW64\reg.exe
      REG ADD "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System" /v "EnableLUA" /t REG_DWORD /d 0 /f /reg:64
      4⤵
      UAC bypass
      System Location Discovery: System Language Discovery
      PID:2780
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c REG ADD "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion" /v "crypted" /t REG_SZ /d 1 /f /reg:64
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3356
  - - C:\Windows\SysWOW64\reg.exe
      REG ADD "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion" /v "crypted" /t REG_SZ /d 1 /f /reg:64
      4⤵
      System Location Discovery: System Language Discovery
      PID:3012
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c shutdown -r -t 10 -f
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:5544
  - - C:\Windows\SysWOW64\shutdown.exe
      shutdown -r -t 10 -f
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      PID:5220

C:\Windows\system32\bcdedit.exe
bcdedit /set {current} bootems no
1⤵
- Modifies boot configuration data using bcdedit
PID:4316

C:\Windows\system32\bcdedit.exe
bcdedit /set {current} advancedoptions off
1⤵
- Modifies boot configuration data using bcdedit
PID:1776

C:\Windows\system32\bcdedit.exe
bcdedit /set {current} optionsedit off
1⤵
- Modifies boot configuration data using bcdedit
PID:2580

C:\Windows\system32\bcdedit.exe
bcdedit /set {current} bootstatuspolicy IgnoreAllFailures
1⤵
- Modifies boot configuration data using bcdedit
PID:1636

C:\Windows\system32\bcdedit.exe
bcdedit /set {current} recoveryenabled off
1⤵
- Modifies boot configuration data using bcdedit
PID:5904

C:\Users\Admin\AppData\Local\system.exe
C:\Users\Admin\AppData\Local\system.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3388
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\del.bat
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3804

C:\Windows\System32\PickerHost.exe
C:\Windows\System32\PickerHost.exe -Embedding
1⤵
- Suspicious use of SetWindowsHookEx
PID:3688

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x4 /state0:0xa3a39055 /state1:0x41c64e6d
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:3316

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Inhibit System Recovery

T1490

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Downloads

del.bat

Path C:\Users\Admin\AppData\Local\del.bat
Size 76B
SHA256 01ddb9a534a1519c377c6951557207284a9a941870951797b2dfa5ed86a85709
MD5 2623d4a3f9735b4a8298ad5050eb73ef
SHA1 3dcd1491a378acd63f725bd427ecb9810dc3cea2
SHA512 aff6ca24a072b2219dafaa751a011cf41b5e8f638438e79d4e1852ff33ce7dbfa87e9e36b867866b2b8bd5ae30f0267d0ce2827caea21ec73a690ae9b4e329e8
TLSH
T1E1A02441F4C14C340005040D0355570D71570CCD014407D005334C3C01C144F5140D01
MD5 SHA1 SHA512 TLSH

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system.exe

Path C:\Users\Admin\AppData\Local\system.exe
Size 315KB
SHA256 a3505cdc0b8895144de2b88ddebdb2e8b9e7f5c7db801d89754c3c61ce81f773
MD5 990cc5ebb75d11abe1e85945f93533c4
SHA1 8b9ee036a64446d13fb0cdfe3dd7a20e139d10ce
SHA512 da7468041ff69b59595d0d30207379f05fb459b8b44c25ab658fe9121df1b02ea94e055c357046e1c1377b79fb01c934f032871d6d9e95cddcef421cf12cede5
SSDEEP 6144:BswDdb2MemnBVlz0SoVbO4A6OA4Trl28TyT6llY1/I8cWJWlfTXv8:BswRSslz0P1OdFXJlJ8buXv8
TLSH
T1C6643A54BC8840ADC03693F00AA2C6A5633EF633371569ABBFDD53781E255E1E733A16
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/3388-100-0x0000000003A60000-0x0000000003A68000-memory.dmp

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memory/3388-99-0x00000000039B0000-0x0000000003A5F000-memory.dmp

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Analysis

Sharing

Errors

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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