471f3fb1a953fab38be3081eb835574694bc72b94f239edc400d1ce3d7a8ecb0

Analysis

max time kernel
59s
max time network
62s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
22-11-2024 03:03

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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

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

2828 cmd.exe
Executes dropped EXE 1 IoCs

Processes:

system.exe

pid process

2888 system.exe

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

pid	process
2828	cmd.exe

pid	process
2888	system.exe

Loads dropped DLL 2 IoCs

Processes:

92ac6be4d9215b237d624177ca0543844d0dc8d071660ae4a4cf7c93cc11505b.exe

pid	process
1268	92ac6be4d9215b237d624177ca0543844d0dc8d071660ae4a4cf7c93cc11505b.exe
1268	92ac6be4d9215b237d624177ca0543844d0dc8d071660ae4a4cf7c93cc11505b.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:

system.exeSCHTASKS.exereg.exereg.execmd.execmd.execmd.execmd.exereg.execmd.exereg.execmd.exereg.exeshutdown.exe92ac6be4d9215b237d624177ca0543844d0dc8d071660ae4a4cf7c93cc11505b.execmd.execmd.exereg.exereg.execmd.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	system.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	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	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	shutdown.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	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

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

2960 SCHTASKS.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

shutdown.exe

description pid process

Token: SeShutdownPrivilege 2364 shutdown.exe
Token: SeRemoteShutdownPrivilege 2364 shutdown.exe

pid	process
2960	SCHTASKS.exe

description	pid	process
Token: SeShutdownPrivilege	2364	shutdown.exe
Token: SeRemoteShutdownPrivilege	2364	shutdown.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

92ac6be4d9215b237d624177ca0543844d0dc8d071660ae4a4cf7c93cc11505b.exesystem.execmd.execmd.execmd.execmd.execmd.execmd.exe

description	pid	process	target process
PID 1268 wrote to memory of 2888	1268	92ac6be4d9215b237d624177ca0543844d0dc8d071660ae4a4cf7c93cc11505b.exe	system.exe
PID 1268 wrote to memory of 2888	1268	92ac6be4d9215b237d624177ca0543844d0dc8d071660ae4a4cf7c93cc11505b.exe	system.exe
PID 1268 wrote to memory of 2888	1268	92ac6be4d9215b237d624177ca0543844d0dc8d071660ae4a4cf7c93cc11505b.exe	system.exe
PID 1268 wrote to memory of 2888	1268	92ac6be4d9215b237d624177ca0543844d0dc8d071660ae4a4cf7c93cc11505b.exe	system.exe
PID 2888 wrote to memory of 2828	2888	system.exe	cmd.exe
PID 2888 wrote to memory of 2828	2888	system.exe	cmd.exe
PID 2888 wrote to memory of 2828	2888	system.exe	cmd.exe
PID 2888 wrote to memory of 2828	2888	system.exe	cmd.exe
PID 2888 wrote to memory of 2960	2888	system.exe	SCHTASKS.exe
PID 2888 wrote to memory of 2960	2888	system.exe	SCHTASKS.exe
PID 2888 wrote to memory of 2960	2888	system.exe	SCHTASKS.exe
PID 2888 wrote to memory of 2960	2888	system.exe	SCHTASKS.exe
PID 2888 wrote to memory of 2860	2888	system.exe	cmd.exe
PID 2888 wrote to memory of 2860	2888	system.exe	cmd.exe
PID 2888 wrote to memory of 2860	2888	system.exe	cmd.exe
PID 2888 wrote to memory of 2860	2888	system.exe	cmd.exe
PID 2888 wrote to memory of 2808	2888	system.exe	cmd.exe
PID 2888 wrote to memory of 2808	2888	system.exe	cmd.exe
PID 2888 wrote to memory of 2808	2888	system.exe	cmd.exe
PID 2888 wrote to memory of 2808	2888	system.exe	cmd.exe
PID 2888 wrote to memory of 2928	2888	system.exe	cmd.exe
PID 2888 wrote to memory of 2928	2888	system.exe	cmd.exe
PID 2888 wrote to memory of 2928	2888	system.exe	cmd.exe
PID 2888 wrote to memory of 2928	2888	system.exe	cmd.exe
PID 2860 wrote to memory of 2724	2860	cmd.exe	reg.exe
PID 2860 wrote to memory of 2724	2860	cmd.exe	reg.exe
PID 2860 wrote to memory of 2724	2860	cmd.exe	reg.exe
PID 2860 wrote to memory of 2724	2860	cmd.exe	reg.exe
PID 2888 wrote to memory of 2772	2888	system.exe	cmd.exe
PID 2888 wrote to memory of 2772	2888	system.exe	cmd.exe
PID 2888 wrote to memory of 2772	2888	system.exe	cmd.exe
PID 2888 wrote to memory of 2772	2888	system.exe	cmd.exe
PID 2888 wrote to memory of 2864	2888	system.exe	cmd.exe
PID 2888 wrote to memory of 2864	2888	system.exe	cmd.exe
PID 2888 wrote to memory of 2864	2888	system.exe	cmd.exe
PID 2888 wrote to memory of 2864	2888	system.exe	cmd.exe
PID 2808 wrote to memory of 2508	2808	cmd.exe	reg.exe
PID 2808 wrote to memory of 2508	2808	cmd.exe	reg.exe
PID 2808 wrote to memory of 2508	2808	cmd.exe	reg.exe
PID 2808 wrote to memory of 2508	2808	cmd.exe	reg.exe
PID 2888 wrote to memory of 2744	2888	system.exe	cmd.exe
PID 2888 wrote to memory of 2744	2888	system.exe	cmd.exe
PID 2888 wrote to memory of 2744	2888	system.exe	cmd.exe
PID 2888 wrote to memory of 2744	2888	system.exe	cmd.exe
PID 2928 wrote to memory of 2984	2928	cmd.exe	reg.exe
PID 2928 wrote to memory of 2984	2928	cmd.exe	reg.exe
PID 2928 wrote to memory of 2984	2928	cmd.exe	reg.exe
PID 2928 wrote to memory of 2984	2928	cmd.exe	reg.exe
PID 2864 wrote to memory of 1388	2864	cmd.exe	reg.exe
PID 2864 wrote to memory of 1388	2864	cmd.exe	reg.exe
PID 2864 wrote to memory of 1388	2864	cmd.exe	reg.exe
PID 2864 wrote to memory of 1388	2864	cmd.exe	reg.exe
PID 2772 wrote to memory of 2588	2772	cmd.exe	reg.exe
PID 2772 wrote to memory of 2588	2772	cmd.exe	reg.exe
PID 2772 wrote to memory of 2588	2772	cmd.exe	reg.exe
PID 2772 wrote to memory of 2588	2772	cmd.exe	reg.exe
PID 2744 wrote to memory of 1744	2744	cmd.exe	reg.exe
PID 2744 wrote to memory of 1744	2744	cmd.exe	reg.exe
PID 2744 wrote to memory of 1744	2744	cmd.exe	reg.exe
PID 2744 wrote to memory of 1744	2744	cmd.exe	reg.exe
PID 2888 wrote to memory of 2052	2888	system.exe	cmd.exe
PID 2888 wrote to memory of 2052	2888	system.exe	cmd.exe
PID 2888 wrote to memory of 2052	2888	system.exe	cmd.exe
PID 2888 wrote to memory of 2052	2888	system.exe	cmd.exe

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:1268
- 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:2888
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\del.bat
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:2828
- - 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:2960
- - 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:2860
  - - 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:2724
- - 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:2808
  - - 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:2508
- - 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:2928
  - - 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:2984
- - 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:2772
  - - 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:2588
- - 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:2864
  - - 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:1388
- - 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:2744
  - - 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:1744
- - 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:2052
  - - 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:2244
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c shutdown -r -t 10 -f
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2540
  - - C:\Windows\SysWOW64\shutdown.exe
      shutdown -r -t 10 -f
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      PID:2364

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x0
1⤵
PID:2624

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x1
1⤵
PID:2904

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

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

Filesize
315KB

MD5
b0e64e04f25f02456a0d62a1c5a92a45

SHA1
2240cb551aa8f92bcde70409efffe6f0626207d8

SHA256
1a852ec77e653bc0e563d6096984277649c79f9c4d8e6d091f1d1475ac0bcb77

SHA512
9cbc3e9e71c8715b7a7bcbd29564cc46877d1c71ccef118bc6d30f5ffc2026cf4275b58c6f3f027ff2dbb49285efb91ecb0777e84781b035513dcad215e7a5d7

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Analysis

Sharing

Errors

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads