7d373ccb96d1dbb1856ef31afa87c2112a0c1795a796ab01cb154700288afec5

Analysis

max time kernel
42s
max time network
51s
platform
windows10-1703_x64
resource
win10-20231023-en
resource tags

arch:x64arch:x86image:win10-20231023-enlocale:en-usos:windows10-1703-x64system
submitted
17-11-2023 12:54

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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
4144	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
1052	SCHTASKS.exe

Modifies data under HKEY_USERS 15 IoCs

description	ioc	Process
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\DWM	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\ColorizationAfterglowBalance = "10"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "1"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History	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\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\ColorizationColor = "3288365271"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglow = "3288365271"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationBlurBalance = "1"	LogonUI.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	5052	shutdown.exe
Token: SeRemoteShutdownPrivilege	5052	shutdown.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1180	LogonUI.exe

Suspicious use of WriteProcessMemory 57 IoCs

description	pid	Process	procid_target
PID 4240 wrote to memory of 4144	4240	7ev3n.exe	71
PID 4240 wrote to memory of 4144	4240	7ev3n.exe	71
PID 4240 wrote to memory of 4144	4240	7ev3n.exe	71
PID 4144 wrote to memory of 2324	4144	system.exe	72
PID 4144 wrote to memory of 2324	4144	system.exe	72
PID 4144 wrote to memory of 2324	4144	system.exe	72
PID 4144 wrote to memory of 1052	4144	system.exe	73
PID 4144 wrote to memory of 1052	4144	system.exe	73
PID 4144 wrote to memory of 1052	4144	system.exe	73
PID 4144 wrote to memory of 4528	4144	system.exe	76
PID 4144 wrote to memory of 4528	4144	system.exe	76
PID 4144 wrote to memory of 4528	4144	system.exe	76
PID 4144 wrote to memory of 1648	4144	system.exe	77
PID 4144 wrote to memory of 1648	4144	system.exe	77
PID 4144 wrote to memory of 1648	4144	system.exe	77
PID 4144 wrote to memory of 3812	4144	system.exe	85
PID 4144 wrote to memory of 3812	4144	system.exe	85
PID 4144 wrote to memory of 3812	4144	system.exe	85
PID 4144 wrote to memory of 3780	4144	system.exe	82
PID 4144 wrote to memory of 3780	4144	system.exe	82
PID 4144 wrote to memory of 3780	4144	system.exe	82
PID 4144 wrote to memory of 3708	4144	system.exe	81
PID 4144 wrote to memory of 3708	4144	system.exe	81
PID 4144 wrote to memory of 3708	4144	system.exe	81
PID 4144 wrote to memory of 2716	4144	system.exe	80
PID 4144 wrote to memory of 2716	4144	system.exe	80
PID 4144 wrote to memory of 2716	4144	system.exe	80
PID 3708 wrote to memory of 1560	3708	cmd.exe	88
PID 3708 wrote to memory of 1560	3708	cmd.exe	88
PID 3708 wrote to memory of 1560	3708	cmd.exe	88
PID 3780 wrote to memory of 2112	3780	cmd.exe	93
PID 3780 wrote to memory of 2112	3780	cmd.exe	93
PID 3780 wrote to memory of 2112	3780	cmd.exe	93
PID 1648 wrote to memory of 4556	1648	cmd.exe	92
PID 1648 wrote to memory of 4556	1648	cmd.exe	92
PID 1648 wrote to memory of 4556	1648	cmd.exe	92
PID 2716 wrote to memory of 4616	2716	cmd.exe	89
PID 2716 wrote to memory of 4616	2716	cmd.exe	89
PID 2716 wrote to memory of 4616	2716	cmd.exe	89
PID 3812 wrote to memory of 3440	3812	cmd.exe	91
PID 3812 wrote to memory of 3440	3812	cmd.exe	91
PID 3812 wrote to memory of 3440	3812	cmd.exe	91
PID 4528 wrote to memory of 4296	4528	cmd.exe	90
PID 4528 wrote to memory of 4296	4528	cmd.exe	90
PID 4528 wrote to memory of 4296	4528	cmd.exe	90
PID 4144 wrote to memory of 3968	4144	system.exe	95
PID 4144 wrote to memory of 3968	4144	system.exe	95
PID 4144 wrote to memory of 3968	4144	system.exe	95
PID 3968 wrote to memory of 1836	3968	cmd.exe	97
PID 3968 wrote to memory of 1836	3968	cmd.exe	97
PID 3968 wrote to memory of 1836	3968	cmd.exe	97
PID 4144 wrote to memory of 2644	4144	system.exe	98
PID 4144 wrote to memory of 2644	4144	system.exe	98
PID 4144 wrote to memory of 2644	4144	system.exe	98
PID 2644 wrote to memory of 5052	2644	cmd.exe	100
PID 2644 wrote to memory of 5052	2644	cmd.exe	100
PID 2644 wrote to memory of 5052	2644	cmd.exe	100

C:\Users\Admin\AppData\Local\Temp\7ev3n.exe
"C:\Users\Admin\AppData\Local\Temp\7ev3n.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4240
- C:\Users\Admin\AppData\Local\system.exe
  "C:\Users\Admin\AppData\Local\system.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:4144
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\del.bat
    3⤵
    PID:2324
- - 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:1052
- - 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:4528
  - - 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:4296
- - 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:1648
  - - 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:4556
- - 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:2716
  - - 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:4616
- - 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:3708
  - - 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:1560
- - 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:3780
  - - 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:2112
- - 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:3812
  - - 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:3440
- - 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:3968
  - - 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:1836
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c shutdown -r -t 10 -f
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2644
  - - C:\Windows\SysWOW64\shutdown.exe
      shutdown -r -t 10 -f
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:5052

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x0 /state0:0xa3ae6055 /state1:0x41c64e6d
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:1180

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

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

Filesize
315KB

MD5
83d3f5dd79f3e8f9253c42a5d7bd4635

SHA1
359ed5b78b06dd3d9259a2e9643e640a8bd201b4

SHA256
bec73642db3e2d424c3d7ec4d62c8038f1ca3390e69199adfd41afb18c17d1a4

SHA512
d207436ee23090c3d00486f779d03f257c3051ee2f146446c8e4b68e254ea6880733615addda64afa1ded34feacc249f4b5fc1ae58c9286fed84a824f1d547e9

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

Filesize
315KB

MD5
83d3f5dd79f3e8f9253c42a5d7bd4635

SHA1
359ed5b78b06dd3d9259a2e9643e640a8bd201b4

SHA256
bec73642db3e2d424c3d7ec4d62c8038f1ca3390e69199adfd41afb18c17d1a4

SHA512
d207436ee23090c3d00486f779d03f257c3051ee2f146446c8e4b68e254ea6880733615addda64afa1ded34feacc249f4b5fc1ae58c9286fed84a824f1d547e9

Download Submit

Analysis

Sharing

Errors

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads