2eaccf2ffad0c83282b940b5ed1e65f38acacc9e002b48e3bf4f852e1097232a

Analysis

max time kernel
50s
max time network
53s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
17-03-2024 04:49

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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

evasion 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

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
2568	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2528	system.exe

Loads dropped DLL 2 IoCs

pid	Process
2244	7ev3n.exe
2244	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

Creates scheduled task(s) 1 TTPs 1 IoCs

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

persistence

Scheduled Task/Job

T1053

pid	Process
2508	SCHTASKS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	2940	shutdown.exe
Token: SeRemoteShutdownPrivilege	2940	shutdown.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2244 wrote to memory of 2528	2244	7ev3n.exe	28
PID 2244 wrote to memory of 2528	2244	7ev3n.exe	28
PID 2244 wrote to memory of 2528	2244	7ev3n.exe	28
PID 2244 wrote to memory of 2528	2244	7ev3n.exe	28
PID 2528 wrote to memory of 2568	2528	system.exe	29
PID 2528 wrote to memory of 2568	2528	system.exe	29
PID 2528 wrote to memory of 2568	2528	system.exe	29
PID 2528 wrote to memory of 2568	2528	system.exe	29
PID 2528 wrote to memory of 2508	2528	system.exe	31
PID 2528 wrote to memory of 2508	2528	system.exe	31
PID 2528 wrote to memory of 2508	2528	system.exe	31
PID 2528 wrote to memory of 2508	2528	system.exe	31
PID 2528 wrote to memory of 2648	2528	system.exe	33
PID 2528 wrote to memory of 2648	2528	system.exe	33
PID 2528 wrote to memory of 2648	2528	system.exe	33
PID 2528 wrote to memory of 2648	2528	system.exe	33
PID 2528 wrote to memory of 2368	2528	system.exe	34
PID 2528 wrote to memory of 2368	2528	system.exe	34
PID 2528 wrote to memory of 2368	2528	system.exe	34
PID 2528 wrote to memory of 2368	2528	system.exe	34
PID 2528 wrote to memory of 2444	2528	system.exe	36
PID 2528 wrote to memory of 2444	2528	system.exe	36
PID 2528 wrote to memory of 2444	2528	system.exe	36
PID 2528 wrote to memory of 2444	2528	system.exe	36
PID 2528 wrote to memory of 2332	2528	system.exe	38
PID 2528 wrote to memory of 2332	2528	system.exe	38
PID 2528 wrote to memory of 2332	2528	system.exe	38
PID 2528 wrote to memory of 2332	2528	system.exe	38
PID 2528 wrote to memory of 2376	2528	system.exe	40
PID 2528 wrote to memory of 2376	2528	system.exe	40
PID 2528 wrote to memory of 2376	2528	system.exe	40
PID 2528 wrote to memory of 2376	2528	system.exe	40
PID 2528 wrote to memory of 2452	2528	system.exe	42
PID 2528 wrote to memory of 2452	2528	system.exe	42
PID 2528 wrote to memory of 2452	2528	system.exe	42
PID 2528 wrote to memory of 2452	2528	system.exe	42
PID 2648 wrote to memory of 2388	2648	cmd.exe	45
PID 2648 wrote to memory of 2388	2648	cmd.exe	45
PID 2648 wrote to memory of 2388	2648	cmd.exe	45
PID 2648 wrote to memory of 2388	2648	cmd.exe	45
PID 2332 wrote to memory of 2600	2332	cmd.exe	47
PID 2332 wrote to memory of 2600	2332	cmd.exe	47
PID 2332 wrote to memory of 2600	2332	cmd.exe	47
PID 2332 wrote to memory of 2600	2332	cmd.exe	47
PID 2452 wrote to memory of 2432	2452	cmd.exe	46
PID 2452 wrote to memory of 2432	2452	cmd.exe	46
PID 2452 wrote to memory of 2432	2452	cmd.exe	46
PID 2452 wrote to memory of 2432	2452	cmd.exe	46
PID 2376 wrote to memory of 2524	2376	cmd.exe	48
PID 2376 wrote to memory of 2524	2376	cmd.exe	48
PID 2376 wrote to memory of 2524	2376	cmd.exe	48
PID 2376 wrote to memory of 2524	2376	cmd.exe	48
PID 2444 wrote to memory of 2656	2444	cmd.exe	50
PID 2444 wrote to memory of 2656	2444	cmd.exe	50
PID 2444 wrote to memory of 2656	2444	cmd.exe	50
PID 2444 wrote to memory of 2656	2444	cmd.exe	50
PID 2368 wrote to memory of 2624	2368	cmd.exe	49
PID 2368 wrote to memory of 2624	2368	cmd.exe	49
PID 2368 wrote to memory of 2624	2368	cmd.exe	49
PID 2368 wrote to memory of 2624	2368	cmd.exe	49
PID 2528 wrote to memory of 2272	2528	system.exe	53
PID 2528 wrote to memory of 2272	2528	system.exe	53
PID 2528 wrote to memory of 2272	2528	system.exe	53
PID 2528 wrote to memory of 2272	2528	system.exe	53

C:\Users\Admin\AppData\Local\Temp\ransomwares\7ev3n\7ev3n.exe
"C:\Users\Admin\AppData\Local\Temp\ransomwares\7ev3n\7ev3n.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2244
- C:\Users\Admin\AppData\Local\system.exe
  "C:\Users\Admin\AppData\Local\system.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:2528
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\del.bat
    3⤵
    - Deletes itself
    PID:2568
- - 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⤵
    - Creates scheduled task(s)
    PID:2508
- - 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⤵
    - Suspicious use of WriteProcessMemory
    PID:2648
  - - 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
      PID:2388
- - 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⤵
    - Suspicious use of WriteProcessMemory
    PID:2368
  - - 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
      PID:2624
- - 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⤵
    - Suspicious use of WriteProcessMemory
    PID:2444
  - - 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⤵
      PID:2656
- - 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⤵
    - Suspicious use of WriteProcessMemory
    PID:2332
  - - 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⤵
      PID:2600
- - 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⤵
    - Suspicious use of WriteProcessMemory
    PID:2376
  - - 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⤵
      PID:2524
- - 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⤵
    - Suspicious use of WriteProcessMemory
    PID:2452
  - - 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
      PID:2432
- - 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⤵
    PID:2272
  - - 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⤵
      PID:2216
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c shutdown -r -t 10 -f
    3⤵
    PID:2100
  - - C:\Windows\SysWOW64\shutdown.exe
      shutdown -r -t 10 -f
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:2940

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x0
1⤵
PID:984

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

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Scheduled Task/Job

T1053

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

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

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
cd9080bb60574a2c0f6146423afa8024

SHA1
bdf88c90416f66518af1480c483088bc8a26b5e3

SHA256
63689a07149b730a68f3b1d63781cd585c953cbf1efafbe36f7a0be68202cd52

SHA512
e3e424f55cb4868ff901dd0040d8a928cf1da233b1449682edc3990eb7b7dd4d157d797a24ac9e5ef1b7c87c6ca7eacbd186d819b3b3b99096d7c7bab214846b

Download Submit
memory/984-105-0x0000000002A80000-0x0000000002A81000-memory.dmp

Filesize
4KB

Download
memory/2148-106-0x00000000026E0000-0x00000000026E1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

Errors

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads