2eaccf2ffad0c83282b940b5ed1e65f38acacc9e002b48e3bf4f852e1097232a

Resubmissions

05-02-2025 08:55

250205-kvkxmayrcz 10

05-02-2025 06:37

250205-hdsvsswldm 10

17-03-2024 04:49

240317-ffz1saef65 10

Analysis

max time kernel
31s
max time network
33s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
05-02-2025 06:37

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Reason

Machine shutdown

Report Analysis Logs

General

Target

ransomwares/7ev3n/7ev3n.exe
Size

315KB
MD5

9f8bc96c96d43ecb69f883388d228754
SHA1

61ed25a706afa2f6684bb4d64f69c5fb29d20953
SHA256

7d373ccb96d1dbb1856ef31afa87c2112a0c1795a796ab01cb154700288afec5
SHA512

550a891c1059f58aa983138caf65a7ea9c326cb1b94c15f3e7594128f6e9f1295b9c2dbc0925637dba7c94e938083fffc6a63dc7c2e5b1e247679931cce505c6
SSDEEP

6144:BswDdb2MemnBVlz0SoVbO4A6OA4Trl28TyT6llY1/I8cWJWlfTXv:BswRSslz0P1OdFXJlJ8buXv

Score

10^/10

defense_evasion discovery persistence trojan

Malware Config

Signatures

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

Deletes itself 1 IoCs

pid	Process
1844	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
1716	system.exe

Loads dropped DLL 2 IoCs

pid	Process
2096	7ev3n.exe
2096	7ev3n.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 20 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7ev3n.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	system.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
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	shutdown.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	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	cmd.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
2720	SCHTASKS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	2172	shutdown.exe
Token: SeRemoteShutdownPrivilege	2172	shutdown.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2096 wrote to memory of 1716	2096	7ev3n.exe	31
PID 2096 wrote to memory of 1716	2096	7ev3n.exe	31
PID 2096 wrote to memory of 1716	2096	7ev3n.exe	31
PID 2096 wrote to memory of 1716	2096	7ev3n.exe	31
PID 1716 wrote to memory of 1844	1716	system.exe	32
PID 1716 wrote to memory of 1844	1716	system.exe	32
PID 1716 wrote to memory of 1844	1716	system.exe	32
PID 1716 wrote to memory of 1844	1716	system.exe	32
PID 1716 wrote to memory of 2720	1716	system.exe	33
PID 1716 wrote to memory of 2720	1716	system.exe	33
PID 1716 wrote to memory of 2720	1716	system.exe	33
PID 1716 wrote to memory of 2720	1716	system.exe	33
PID 1716 wrote to memory of 2716	1716	system.exe	36
PID 1716 wrote to memory of 2716	1716	system.exe	36
PID 1716 wrote to memory of 2716	1716	system.exe	36
PID 1716 wrote to memory of 2716	1716	system.exe	36
PID 1716 wrote to memory of 2980	1716	system.exe	37
PID 1716 wrote to memory of 2980	1716	system.exe	37
PID 1716 wrote to memory of 2980	1716	system.exe	37
PID 1716 wrote to memory of 2980	1716	system.exe	37
PID 1716 wrote to memory of 2508	1716	system.exe	39
PID 1716 wrote to memory of 2508	1716	system.exe	39
PID 1716 wrote to memory of 2508	1716	system.exe	39
PID 1716 wrote to memory of 2508	1716	system.exe	39
PID 1716 wrote to memory of 2840	1716	system.exe	40
PID 1716 wrote to memory of 2840	1716	system.exe	40
PID 1716 wrote to memory of 2840	1716	system.exe	40
PID 1716 wrote to memory of 2840	1716	system.exe	40
PID 2716 wrote to memory of 2632	2716	cmd.exe	44
PID 2716 wrote to memory of 2632	2716	cmd.exe	44
PID 2716 wrote to memory of 2632	2716	cmd.exe	44
PID 2716 wrote to memory of 2632	2716	cmd.exe	44
PID 2980 wrote to memory of 2664	2980	cmd.exe	46
PID 2980 wrote to memory of 2664	2980	cmd.exe	46
PID 2980 wrote to memory of 2664	2980	cmd.exe	46
PID 2980 wrote to memory of 2664	2980	cmd.exe	46
PID 2508 wrote to memory of 2876	2508	cmd.exe	47
PID 2508 wrote to memory of 2876	2508	cmd.exe	47
PID 2508 wrote to memory of 2876	2508	cmd.exe	47
PID 2508 wrote to memory of 2876	2508	cmd.exe	47
PID 1716 wrote to memory of 2804	1716	system.exe	43
PID 1716 wrote to memory of 2804	1716	system.exe	43
PID 1716 wrote to memory of 2804	1716	system.exe	43
PID 1716 wrote to memory of 2804	1716	system.exe	43
PID 2840 wrote to memory of 2784	2840	cmd.exe	48
PID 2840 wrote to memory of 2784	2840	cmd.exe	48
PID 2840 wrote to memory of 2784	2840	cmd.exe	48
PID 2840 wrote to memory of 2784	2840	cmd.exe	48
PID 1716 wrote to memory of 2628	1716	system.exe	50
PID 1716 wrote to memory of 2628	1716	system.exe	50
PID 1716 wrote to memory of 2628	1716	system.exe	50
PID 1716 wrote to memory of 2628	1716	system.exe	50
PID 2804 wrote to memory of 2084	2804	cmd.exe	52
PID 2804 wrote to memory of 2084	2804	cmd.exe	52
PID 2804 wrote to memory of 2084	2804	cmd.exe	52
PID 2804 wrote to memory of 2084	2804	cmd.exe	52
PID 2628 wrote to memory of 2080	2628	cmd.exe	53
PID 2628 wrote to memory of 2080	2628	cmd.exe	53
PID 2628 wrote to memory of 2080	2628	cmd.exe	53
PID 2628 wrote to memory of 2080	2628	cmd.exe	53
PID 1716 wrote to memory of 1320	1716	system.exe	56
PID 1716 wrote to memory of 1320	1716	system.exe	56
PID 1716 wrote to memory of 1320	1716	system.exe	56
PID 1716 wrote to memory of 1320	1716	system.exe	56

C:\Users\Admin\AppData\Local\Temp\ransomwares\7ev3n\7ev3n.exe
C:\Users\Admin\AppData\Local\Temp\ransomwares\7ev3n\7ev3n.exe dsrm -subtree -noprompt -c user"http://+:443"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2096
- 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:1716
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\del.bat
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:1844
- - 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:2720
- - 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:2716
  - - 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:2632
- - 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:2980
  - - 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:2664
- - 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:2508
  - - 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:2876
- - 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:2840
  - - 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:2784
- - 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:2804
  - - 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:2084
- - 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:2628
  - - 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:2080
- - 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
    PID:1320
  - - 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:972
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c shutdown -r -t 10 -f
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1504
  - - C:\Windows\SysWOW64\shutdown.exe
      shutdown -r -t 10 -f
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      PID:2172

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x0
1⤵
PID:2572

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x1
1⤵
PID:2148

Network

MITRE ATT&CK Enterprise v15

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

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Downloads

C:\Users\Admin\AppData\Local\del.bat

Filesize
83B

MD5
c845363aae0b9f8f4c33759ac4610840

SHA1
fa0d93ee743416cf7f6bd39d888973c36e64cb44

SHA256
09968bc0c94979ff041838aea1119727122e3e33c7558c135e3f6ba8e4de62eb

SHA512
550fe7d835ab46421b4b20e1425330ce43c7cacc72f7cff657a956cbd2aacc48c3e40d8fa84262e6b5af5205853662cc69202da277ccb807b4acf87196383d14

Download Submit
\Users\Admin\AppData\Local\system.exe

Filesize
315KB

MD5
4b14f672476ffa473d729eee7568d23c

SHA1
e1d887d9ffc7ead7689fa67cbdbcc9e59d518694

SHA256
fd744749035c4b796648f719510ef1229a4625d421bca304686f4a71997e780d

SHA512
baf7e35bc4a4f04ebe00629a13c3feefe64efcc71d38bb5a0fce9ae7f5ab49e02026196571f73ac8423c70469480d07d458519e84019ddd2745d288a42ff1091

Download Submit

Resubmissions

Analysis

Sharing

Errors

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads