9c9e87c0c492673453acb1a253c8ae23ee8245531c37d6ef8ead76b6e2d1562e

Analysis

max time kernel
39s
max time network
46s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
15-03-2024 21:34

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Reason

Machine shutdown

Report Analysis Logs

General

Target

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

Executes dropped EXE 1 IoCs

pid	Process
2404	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

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
2764	SCHTASKS.exe

Modifies data under HKEY_USERS 15 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglow = "3288365271"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\StartColorMenu = "4288567808"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292311040"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "4292311040"	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\ColorizationBlurBalance = "1"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent	LogonUI.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = a6d8ff0076b9ed00429ce3000078d700005a9e000042750000264200f7630c00	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "221"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History\AutoColor = "0"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365271"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglowBalance = "10"	LogonUI.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	1752	shutdown.exe
Token: SeRemoteShutdownPrivilege	1752	shutdown.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
5020	LogonUI.exe

Suspicious use of WriteProcessMemory 57 IoCs

description	pid	Process	procid_target
PID 3652 wrote to memory of 2404	3652	7ev3n.exe	101
PID 3652 wrote to memory of 2404	3652	7ev3n.exe	101
PID 3652 wrote to memory of 2404	3652	7ev3n.exe	101
PID 2404 wrote to memory of 5080	2404	system.exe	102
PID 2404 wrote to memory of 5080	2404	system.exe	102
PID 2404 wrote to memory of 5080	2404	system.exe	102
PID 2404 wrote to memory of 2764	2404	system.exe	103
PID 2404 wrote to memory of 2764	2404	system.exe	103
PID 2404 wrote to memory of 2764	2404	system.exe	103
PID 2404 wrote to memory of 4612	2404	system.exe	106
PID 2404 wrote to memory of 4612	2404	system.exe	106
PID 2404 wrote to memory of 4612	2404	system.exe	106
PID 2404 wrote to memory of 4928	2404	system.exe	107
PID 2404 wrote to memory of 4928	2404	system.exe	107
PID 2404 wrote to memory of 4928	2404	system.exe	107
PID 2404 wrote to memory of 2968	2404	system.exe	108
PID 2404 wrote to memory of 2968	2404	system.exe	108
PID 2404 wrote to memory of 2968	2404	system.exe	108
PID 2404 wrote to memory of 3412	2404	system.exe	109
PID 2404 wrote to memory of 3412	2404	system.exe	109
PID 2404 wrote to memory of 3412	2404	system.exe	109
PID 2404 wrote to memory of 4296	2404	system.exe	111
PID 2404 wrote to memory of 4296	2404	system.exe	111
PID 2404 wrote to memory of 4296	2404	system.exe	111
PID 2404 wrote to memory of 4304	2404	system.exe	112
PID 2404 wrote to memory of 4304	2404	system.exe	112
PID 2404 wrote to memory of 4304	2404	system.exe	112
PID 4296 wrote to memory of 1864	4296	cmd.exe	118
PID 4296 wrote to memory of 1864	4296	cmd.exe	118
PID 4296 wrote to memory of 1864	4296	cmd.exe	118
PID 2968 wrote to memory of 1584	2968	cmd.exe	119
PID 2968 wrote to memory of 1584	2968	cmd.exe	119
PID 2968 wrote to memory of 1584	2968	cmd.exe	119
PID 4304 wrote to memory of 2004	4304	cmd.exe	121
PID 4304 wrote to memory of 2004	4304	cmd.exe	121
PID 4304 wrote to memory of 2004	4304	cmd.exe	121
PID 4928 wrote to memory of 2172	4928	cmd.exe	120
PID 4928 wrote to memory of 2172	4928	cmd.exe	120
PID 4928 wrote to memory of 2172	4928	cmd.exe	120
PID 3412 wrote to memory of 4644	3412	cmd.exe	122
PID 3412 wrote to memory of 4644	3412	cmd.exe	122
PID 3412 wrote to memory of 4644	3412	cmd.exe	122
PID 4612 wrote to memory of 216	4612	cmd.exe	123
PID 4612 wrote to memory of 216	4612	cmd.exe	123
PID 4612 wrote to memory of 216	4612	cmd.exe	123
PID 2404 wrote to memory of 888	2404	system.exe	129
PID 2404 wrote to memory of 888	2404	system.exe	129
PID 2404 wrote to memory of 888	2404	system.exe	129
PID 888 wrote to memory of 4356	888	cmd.exe	131
PID 888 wrote to memory of 4356	888	cmd.exe	131
PID 888 wrote to memory of 4356	888	cmd.exe	131
PID 2404 wrote to memory of 4524	2404	system.exe	132
PID 2404 wrote to memory of 4524	2404	system.exe	132
PID 2404 wrote to memory of 4524	2404	system.exe	132
PID 4524 wrote to memory of 1752	4524	cmd.exe	134
PID 4524 wrote to memory of 1752	4524	cmd.exe	134
PID 4524 wrote to memory of 1752	4524	cmd.exe	134

C:\Users\Admin\AppData\Local\Temp\7ev3n.exe
"C:\Users\Admin\AppData\Local\Temp\7ev3n.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3652
- C:\Users\Admin\AppData\Local\system.exe
  "C:\Users\Admin\AppData\Local\system.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:2404
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\del.bat
    3⤵
    PID:5080
- - 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:2764
- - 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:4612
  - - 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:216
- - 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:4928
  - - 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:2172
- - 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:2968
  - - 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:1584
- - 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:3412
  - - 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:4644
- - 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:4296
  - - 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:1864
- - 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:4304
  - - 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:2004
- - 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⤵
    - Suspicious use of WriteProcessMemory
    PID:888
  - - 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:4356
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c shutdown -r -t 10 -f
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4524
  - - C:\Windows\SysWOW64\shutdown.exe
      shutdown -r -t 10 -f
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:1752

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x4 /state0:0xa39b6855 /state1:0x41c64e6d
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:5020

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
65B

MD5
f727ee128a7eeb23b9c3242b049e61ef

SHA1
a260ee1e7c05377830130163737c7609598d61ee

SHA256
98bfdb556f8e8a2564cadfd0c62fff7b81b3a70a4f7e03a86f704fabd5d3c884

SHA512
c59a537dbd2349d0f29b6596d35c387fbb76a2cde16fddee04c3d861221c2a7a9ef1af67577a63a80523ec4fc079cc64090e3e86544730bf9cdac2ca122a9c0e

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C:\Users\Admin\AppData\Local\system.exe

Filesize
315KB

MD5
7ee101b66aa78da4faf50fa802db2494

SHA1
839d7d818802db949ec3e6dd1b79d7f6066e6c61

SHA256
ea8d762f5a481d6c62f9cf31da7b1d9a97bdc70911f76db395abc2aa008c8167

SHA512
f623e399dc07dc03818206663550b313a72d06ba7059b7a64b06add7661851d1c17edda9e36c8314b6a499530a296ac044efa07d38834edab0d5c2f7a1820963

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Analysis

Sharing

Errors

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads