471f3fb1a953fab38be3081eb835574694bc72b94f239edc400d1ce3d7a8ecb0

Analysis

max time kernel
31s
max time network
31s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
22-11-2024 02:43

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Reason

Machine shutdown

Report Analysis Logs

General

Target

92ac6be4d9215b237d624177ca0543844d0dc8d071660ae4a4cf7c93cc11505b.exe
Size

315KB
MD5

8434eea972e516a35f4ac59a7f868453
SHA1

39eff0a248b7f23ee728396968e9279b241d2378
SHA256

92ac6be4d9215b237d624177ca0543844d0dc8d071660ae4a4cf7c93cc11505b
SHA512

308160a34f7074f9a8178ce8ba37f155ba096c7448bc5cd0e9861788e158d2eacdbb329f716bc1b6935db9b26c0bcb9aca23966c73e4114c8ea92e6f53d77348
SSDEEP

6144:BswDdb2MemnBVlz0SoVbO4A6OA4Trl28TyT6llY1/I8cWJWlfTXve:BswRSslz0P1OdFXJlJ8buXve

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

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
2484	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2892	system.exe

Loads dropped DLL 2 IoCs

pid	Process
2520	92ac6be4d9215b237d624177ca0543844d0dc8d071660ae4a4cf7c93cc11505b.exe
2520	92ac6be4d9215b237d624177ca0543844d0dc8d071660ae4a4cf7c93cc11505b.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

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

description	ioc	Process
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	cmd.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	cmd.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	system.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	92ac6be4d9215b237d624177ca0543844d0dc8d071660ae4a4cf7c93cc11505b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
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	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.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

pid	Process
2708	SCHTASKS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	952	shutdown.exe
Token: SeRemoteShutdownPrivilege	952	shutdown.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2520 wrote to memory of 2892	2520	92ac6be4d9215b237d624177ca0543844d0dc8d071660ae4a4cf7c93cc11505b.exe	31
PID 2520 wrote to memory of 2892	2520	92ac6be4d9215b237d624177ca0543844d0dc8d071660ae4a4cf7c93cc11505b.exe	31
PID 2520 wrote to memory of 2892	2520	92ac6be4d9215b237d624177ca0543844d0dc8d071660ae4a4cf7c93cc11505b.exe	31
PID 2520 wrote to memory of 2892	2520	92ac6be4d9215b237d624177ca0543844d0dc8d071660ae4a4cf7c93cc11505b.exe	31
PID 2892 wrote to memory of 2484	2892	system.exe	32
PID 2892 wrote to memory of 2484	2892	system.exe	32
PID 2892 wrote to memory of 2484	2892	system.exe	32
PID 2892 wrote to memory of 2484	2892	system.exe	32
PID 2892 wrote to memory of 2708	2892	system.exe	34
PID 2892 wrote to memory of 2708	2892	system.exe	34
PID 2892 wrote to memory of 2708	2892	system.exe	34
PID 2892 wrote to memory of 2708	2892	system.exe	34
PID 2892 wrote to memory of 2732	2892	system.exe	36
PID 2892 wrote to memory of 2732	2892	system.exe	36
PID 2892 wrote to memory of 2732	2892	system.exe	36
PID 2892 wrote to memory of 2732	2892	system.exe	36
PID 2892 wrote to memory of 1204	2892	system.exe	37
PID 2892 wrote to memory of 1204	2892	system.exe	37
PID 2892 wrote to memory of 1204	2892	system.exe	37
PID 2892 wrote to memory of 1204	2892	system.exe	37
PID 2892 wrote to memory of 2740	2892	system.exe	39
PID 2892 wrote to memory of 2740	2892	system.exe	39
PID 2892 wrote to memory of 2740	2892	system.exe	39
PID 2892 wrote to memory of 2740	2892	system.exe	39
PID 2892 wrote to memory of 2716	2892	system.exe	40
PID 2892 wrote to memory of 2716	2892	system.exe	40
PID 2892 wrote to memory of 2716	2892	system.exe	40
PID 2892 wrote to memory of 2716	2892	system.exe	40
PID 2892 wrote to memory of 2904	2892	system.exe	42
PID 2892 wrote to memory of 2904	2892	system.exe	42
PID 2892 wrote to memory of 2904	2892	system.exe	42
PID 2892 wrote to memory of 2904	2892	system.exe	42
PID 2892 wrote to memory of 2628	2892	system.exe	43
PID 2892 wrote to memory of 2628	2892	system.exe	43
PID 2892 wrote to memory of 2628	2892	system.exe	43
PID 2892 wrote to memory of 2628	2892	system.exe	43
PID 2904 wrote to memory of 2720	2904	cmd.exe	49
PID 2904 wrote to memory of 2720	2904	cmd.exe	49
PID 2904 wrote to memory of 2720	2904	cmd.exe	49
PID 2904 wrote to memory of 2720	2904	cmd.exe	49
PID 2740 wrote to memory of 2676	2740	cmd.exe	48
PID 2740 wrote to memory of 2676	2740	cmd.exe	48
PID 2740 wrote to memory of 2676	2740	cmd.exe	48
PID 2740 wrote to memory of 2676	2740	cmd.exe	48
PID 2732 wrote to memory of 2496	2732	cmd.exe	50
PID 2732 wrote to memory of 2496	2732	cmd.exe	50
PID 2732 wrote to memory of 2496	2732	cmd.exe	50
PID 2732 wrote to memory of 2496	2732	cmd.exe	50
PID 1204 wrote to memory of 2768	1204	cmd.exe	51
PID 1204 wrote to memory of 2768	1204	cmd.exe	51
PID 1204 wrote to memory of 2768	1204	cmd.exe	51
PID 1204 wrote to memory of 2768	1204	cmd.exe	51
PID 2716 wrote to memory of 2440	2716	cmd.exe	53
PID 2716 wrote to memory of 2440	2716	cmd.exe	53
PID 2716 wrote to memory of 2440	2716	cmd.exe	53
PID 2716 wrote to memory of 2440	2716	cmd.exe	53
PID 2628 wrote to memory of 2116	2628	cmd.exe	52
PID 2628 wrote to memory of 2116	2628	cmd.exe	52
PID 2628 wrote to memory of 2116	2628	cmd.exe	52
PID 2628 wrote to memory of 2116	2628	cmd.exe	52
PID 2892 wrote to memory of 2580	2892	system.exe	56
PID 2892 wrote to memory of 2580	2892	system.exe	56
PID 2892 wrote to memory of 2580	2892	system.exe	56
PID 2892 wrote to memory of 2580	2892	system.exe	56

C:\Users\Admin\AppData\Local\Temp\92ac6be4d9215b237d624177ca0543844d0dc8d071660ae4a4cf7c93cc11505b.exe
"C:\Users\Admin\AppData\Local\Temp\92ac6be4d9215b237d624177ca0543844d0dc8d071660ae4a4cf7c93cc11505b.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2520
- 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:2892
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\del.bat
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:2484
- - 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:2708
- - 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: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
      System Location Discovery: System Language Discovery
      PID:2496
- - 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:1204
  - - 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:2768
- - 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:2740
  - - 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:2676
- - 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:2716
  - - 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:2440
- - 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:2904
  - - 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:2720
- - 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:2628
  - - 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:2116
- - 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:2580
  - - 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:1824
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c shutdown -r -t 10 -f
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1212
  - - C:\Windows\SysWOW64\shutdown.exe
      shutdown -r -t 10 -f
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      PID:952

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x0
1⤵
PID:2428

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x1
1⤵
PID:2480

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
124B

MD5
0d751d38e8f5a5119ce628495e0cada0

SHA1
402e008d0b7dc3dcccabda31d9e9d35272e10cc7

SHA256
2fab7170e9c43a48c4c637a5f7f6bc6cbb72e369c99af8f9680aaa68549ab1bc

SHA512
ef1fafd9eee050075c991ead727b33dd7e49dc80bab1cdb1a7c932d6b2bd2a8e90f9db5270d484e1173e9377e017f7d7d97045ee4f7fc8a808663f656d1005d9

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

Filesize
315KB

MD5
5d5f6c4ef03196c9e9fdc613d14f37f3

SHA1
d561d135388d06886b4ac267017defb10e142ecd

SHA256
8fff044037936df9e7c5cee91fd28d6cea67b07aa5856c7937a3c6f63dc1b392

SHA512
185a31469628d1329412afcb9717fd88a5adddff0ef790033854353d4c9b7fedc4865f5fd065c60e18d8d0ae2bf4ee5deb4d0d93e28adbbe42ec90e3a5fe4669

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Analysis

Sharing

Errors

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads