9c9e87c0c492673453acb1a253c8ae23ee8245531c37d6ef8ead76b6e2d1562e

Analysis

max time kernel
117s
max time network
129s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
17-03-2024 01:08

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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

Deletes itself 1 IoCs

pid	Process
2712	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2136	system.exe

Loads dropped DLL 2 IoCs

pid	Process
2276	7ev3n.exe
2276	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
2692	SCHTASKS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	1756	shutdown.exe
Token: SeRemoteShutdownPrivilege	1756	shutdown.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2276 wrote to memory of 2136	2276	7ev3n.exe	28
PID 2276 wrote to memory of 2136	2276	7ev3n.exe	28
PID 2276 wrote to memory of 2136	2276	7ev3n.exe	28
PID 2276 wrote to memory of 2136	2276	7ev3n.exe	28
PID 2136 wrote to memory of 2712	2136	system.exe	29
PID 2136 wrote to memory of 2712	2136	system.exe	29
PID 2136 wrote to memory of 2712	2136	system.exe	29
PID 2136 wrote to memory of 2712	2136	system.exe	29
PID 2136 wrote to memory of 2692	2136	system.exe	31
PID 2136 wrote to memory of 2692	2136	system.exe	31
PID 2136 wrote to memory of 2692	2136	system.exe	31
PID 2136 wrote to memory of 2692	2136	system.exe	31
PID 2136 wrote to memory of 2732	2136	system.exe	33
PID 2136 wrote to memory of 2732	2136	system.exe	33
PID 2136 wrote to memory of 2732	2136	system.exe	33
PID 2136 wrote to memory of 2732	2136	system.exe	33
PID 2136 wrote to memory of 2460	2136	system.exe	34
PID 2136 wrote to memory of 2460	2136	system.exe	34
PID 2136 wrote to memory of 2460	2136	system.exe	34
PID 2136 wrote to memory of 2460	2136	system.exe	34
PID 2136 wrote to memory of 2772	2136	system.exe	36
PID 2136 wrote to memory of 2772	2136	system.exe	36
PID 2136 wrote to memory of 2772	2136	system.exe	36
PID 2136 wrote to memory of 2772	2136	system.exe	36
PID 2136 wrote to memory of 2720	2136	system.exe	39
PID 2136 wrote to memory of 2720	2136	system.exe	39
PID 2136 wrote to memory of 2720	2136	system.exe	39
PID 2136 wrote to memory of 2720	2136	system.exe	39
PID 2136 wrote to memory of 2428	2136	system.exe	40
PID 2136 wrote to memory of 2428	2136	system.exe	40
PID 2136 wrote to memory of 2428	2136	system.exe	40
PID 2136 wrote to memory of 2428	2136	system.exe	40
PID 2136 wrote to memory of 2468	2136	system.exe	42
PID 2136 wrote to memory of 2468	2136	system.exe	42
PID 2136 wrote to memory of 2468	2136	system.exe	42
PID 2136 wrote to memory of 2468	2136	system.exe	42
PID 2732 wrote to memory of 1880	2732	cmd.exe	45
PID 2732 wrote to memory of 1880	2732	cmd.exe	45
PID 2732 wrote to memory of 1880	2732	cmd.exe	45
PID 2732 wrote to memory of 1880	2732	cmd.exe	45
PID 2720 wrote to memory of 2176	2720	cmd.exe	47
PID 2720 wrote to memory of 2176	2720	cmd.exe	47
PID 2720 wrote to memory of 2176	2720	cmd.exe	47
PID 2720 wrote to memory of 2176	2720	cmd.exe	47
PID 2772 wrote to memory of 1332	2772	cmd.exe	46
PID 2772 wrote to memory of 1332	2772	cmd.exe	46
PID 2772 wrote to memory of 1332	2772	cmd.exe	46
PID 2772 wrote to memory of 1332	2772	cmd.exe	46
PID 2468 wrote to memory of 268	2468	cmd.exe	48
PID 2468 wrote to memory of 268	2468	cmd.exe	48
PID 2468 wrote to memory of 268	2468	cmd.exe	48
PID 2468 wrote to memory of 268	2468	cmd.exe	48
PID 2460 wrote to memory of 592	2460	cmd.exe	49
PID 2460 wrote to memory of 592	2460	cmd.exe	49
PID 2460 wrote to memory of 592	2460	cmd.exe	49
PID 2460 wrote to memory of 592	2460	cmd.exe	49
PID 2428 wrote to memory of 532	2428	cmd.exe	50
PID 2428 wrote to memory of 532	2428	cmd.exe	50
PID 2428 wrote to memory of 532	2428	cmd.exe	50
PID 2428 wrote to memory of 532	2428	cmd.exe	50
PID 2136 wrote to memory of 1932	2136	system.exe	55
PID 2136 wrote to memory of 1932	2136	system.exe	55
PID 2136 wrote to memory of 1932	2136	system.exe	55
PID 2136 wrote to memory of 1932	2136	system.exe	55

C:\Users\Admin\AppData\Local\Temp\7ev3n.exe
"C:\Users\Admin\AppData\Local\Temp\7ev3n.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2276
- C:\Users\Admin\AppData\Local\system.exe
  "C:\Users\Admin\AppData\Local\system.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:2136
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\del.bat
    3⤵
    - Deletes itself
    PID:2712
- - 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:2692
- - 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:2732
  - - 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:1880
- - 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:2460
  - - 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:592
- - 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:2772
  - - 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:1332
- - 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:2720
  - - 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:2176
- - 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:2428
  - - 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:532
- - 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:2468
  - - 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:268
- - 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:1932
  - - 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:908
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c shutdown -r -t 10 -f
    3⤵
    PID:2104
  - - C:\Windows\SysWOW64\shutdown.exe
      shutdown -r -t 10 -f
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:1756

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x0
1⤵
PID:1976

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x1
1⤵
PID:2276

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

Filesize
315KB

MD5
94179bb0b7cc41c3e322867ef0d49bef

SHA1
59063e891689cdf4b72e97c58d39dbd885085bee

SHA256
aa5f8f584d1f4e967f8580a8e507be38248cdad2ed81ae59bddcc9c561c3f1c3

SHA512
4bef8fd6f79413378d212cc5f1293becd68b6700d766b65a90d3368cf158c54b45a87dd6e19ed8bb69ed3c73e4c74e81a5f09df77731e8d9b79be8417f9e0a04

Download Submit
memory/1976-112-0x00000000029C0000-0x00000000029C1000-memory.dmp

Filesize
4KB

Download
memory/2276-113-0x00000000026E0000-0x00000000026E1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

Errors

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads