Analysis

  • max time kernel
    151s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-10-2022 22:44

General

  • Target

    61813e2eaf167ce0b7db5db00760d2247128b918d69c5cdd6d8c86ccb978e9ee.exe

  • Size

    554KB

  • MD5

    920dbc03f2b68c7858e190b329564080

  • SHA1

    816c13db1ca80eb5673cab7a47955dea8e9b98b6

  • SHA256

    61813e2eaf167ce0b7db5db00760d2247128b918d69c5cdd6d8c86ccb978e9ee

  • SHA512

    726ad60eeb6868487336340d90d1fb56571b1ed4cae58766db95034b82f0523dcb57f60743dba8bc3df6876a2f34d9bab94f79ba7ae81aeb6ea33c41c6ceebc4

  • SSDEEP

    6144:imVCRD/xy7N6MQ2K2mm0Wse1/QlmznD0ui2n3R9e/l+AlK/HLKzuCMU7cDFlGI/w:iFD/xys2K2mmHs+00Ddi2n3XeN+bHIT

Score
10/10

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Modifies firewall policy service 2 TTPs 10 IoCs
  • Executes dropped EXE 3 IoCs
  • UPX packed file 6 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Checks computer location settings 2 TTPs 3 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Modifies registry key 1 TTPs 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 39 IoCs
  • Suspicious use of SetWindowsHookEx 10 IoCs
  • Suspicious use of WriteProcessMemory 53 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\61813e2eaf167ce0b7db5db00760d2247128b918d69c5cdd6d8c86ccb978e9ee.exe
    "C:\Users\Admin\AppData\Local\Temp\61813e2eaf167ce0b7db5db00760d2247128b918d69c5cdd6d8c86ccb978e9ee.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3180
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v2.0.50727\AppLaunch.exe"
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4316
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4044
        • C:\Windows\SysWOW64\reg.exe
          REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
          4⤵
          • Modifies firewall policy service
          • Modifies registry key
          PID:1364
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Windows\Microsoft.NET\Framework\v2.0.50727\AppLaunch.exe" /t REG_SZ /d "C:\Windows\Microsoft.NET\Framework\v2.0.50727\AppLaunch.exe:*:Enabled:Windows Messanger" /f
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:208
        • C:\Windows\SysWOW64\reg.exe
          REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Windows\Microsoft.NET\Framework\v2.0.50727\AppLaunch.exe" /t REG_SZ /d "C:\Windows\Microsoft.NET\Framework\v2.0.50727\AppLaunch.exe:*:Enabled:Windows Messanger" /f
          4⤵
          • Modifies firewall policy service
          • Modifies registry key
          PID:4436
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:224
        • C:\Windows\SysWOW64\reg.exe
          REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
          4⤵
          • Modifies firewall policy service
          • Modifies registry key
          PID:4544
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Local\Temp\585N35DY7U.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\585N35DY7U.exe:*:Enabled:Windows Messanger" /f
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2748
        • C:\Windows\SysWOW64\reg.exe
          REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Local\Temp\585N35DY7U.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\585N35DY7U.exe:*:Enabled:Windows Messanger" /f
          4⤵
          • Modifies firewall policy service
          • Modifies registry key
          PID:3224
    • C:\Users\Admin\AppData\Local\Temp\VaultCmd.exe
      "C:\Users\Admin\AppData\Local\Temp\VaultCmd.exe"
      2⤵
      • Executes dropped EXE
      • Checks computer location settings
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3888
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c reg add "HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" /v "Shell" /d "C:\Windows\explorer.exe, C:\Users\Admin\AppData\Local\Temp\VaultCmd.exe" /f
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1632
        • C:\Windows\SysWOW64\reg.exe
          reg add "HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" /v "Shell" /d "C:\Windows\explorer.exe, C:\Users\Admin\AppData\Local\Temp\VaultCmd.exe" /f
          4⤵
          • Modifies WinLogon for persistence
          PID:2288
      • C:\Users\Admin\AppData\Local\Temp\typeperf.exe
        "C:\Users\Admin\AppData\Local\Temp\typeperf.exe"
        3⤵
        • Executes dropped EXE
        • Checks computer location settings
        • Suspicious use of SetThreadContext
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2992
        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\AppLaunch.exe
          "C:\Windows\Microsoft.NET\Framework\v2.0.50727\AppLaunch.exe"
          4⤵
          • Suspicious use of SetWindowsHookEx
          PID:4796
        • C:\Users\Admin\AppData\Local\Temp\VaultCmd.exe
          "C:\Users\Admin\AppData\Local\Temp\VaultCmd.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          PID:3856

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\VaultCmd.exe.log

    Filesize

    224B

    MD5

    33fe65aefdd54d746621e77615d65b49

    SHA1

    ee39605365280eeb998e52187bb7b0b754b6941a

    SHA256

    6f62b06a657a489ffd5eb2ee418809b2b8017bc6e1ca7c303476d43a046ac6b6

    SHA512

    5112e615fc51377326574cbad681ec4f492d4fc27479f7d8313f1f7d2a12c2ae44a1820e8128edc7e3ee01e43aedfba313c252b7b343c8fd5627fd92e0121a0d

  • C:\Users\Admin\AppData\Local\Temp\VaultCmd.exe

    Filesize

    11KB

    MD5

    b571cd24128879c2ad9086303a8dfddc

    SHA1

    84ceae0866be13f019bc86a31eaddf6980c6a9da

    SHA256

    388ad7ca4e6403b8804269cd6c73f6a5e3a232b1f1c63687c515da77b0406a78

    SHA512

    646219a8d925453f8b2b1a0a7a7e4be389e024563e387f44f481e0564032bb16e2b58359a38037be935cdaa77342ec440fa8655b0df8c72e244c7dc5d4d00a5d

  • C:\Users\Admin\AppData\Local\Temp\VaultCmd.exe

    Filesize

    11KB

    MD5

    b571cd24128879c2ad9086303a8dfddc

    SHA1

    84ceae0866be13f019bc86a31eaddf6980c6a9da

    SHA256

    388ad7ca4e6403b8804269cd6c73f6a5e3a232b1f1c63687c515da77b0406a78

    SHA512

    646219a8d925453f8b2b1a0a7a7e4be389e024563e387f44f481e0564032bb16e2b58359a38037be935cdaa77342ec440fa8655b0df8c72e244c7dc5d4d00a5d

  • C:\Users\Admin\AppData\Local\Temp\VaultCmd.exe

    Filesize

    11KB

    MD5

    b571cd24128879c2ad9086303a8dfddc

    SHA1

    84ceae0866be13f019bc86a31eaddf6980c6a9da

    SHA256

    388ad7ca4e6403b8804269cd6c73f6a5e3a232b1f1c63687c515da77b0406a78

    SHA512

    646219a8d925453f8b2b1a0a7a7e4be389e024563e387f44f481e0564032bb16e2b58359a38037be935cdaa77342ec440fa8655b0df8c72e244c7dc5d4d00a5d

  • C:\Users\Admin\AppData\Local\Temp\typeperf.exe

    Filesize

    554KB

    MD5

    920dbc03f2b68c7858e190b329564080

    SHA1

    816c13db1ca80eb5673cab7a47955dea8e9b98b6

    SHA256

    61813e2eaf167ce0b7db5db00760d2247128b918d69c5cdd6d8c86ccb978e9ee

    SHA512

    726ad60eeb6868487336340d90d1fb56571b1ed4cae58766db95034b82f0523dcb57f60743dba8bc3df6876a2f34d9bab94f79ba7ae81aeb6ea33c41c6ceebc4

  • C:\Users\Admin\AppData\Local\Temp\typeperf.exe

    Filesize

    554KB

    MD5

    920dbc03f2b68c7858e190b329564080

    SHA1

    816c13db1ca80eb5673cab7a47955dea8e9b98b6

    SHA256

    61813e2eaf167ce0b7db5db00760d2247128b918d69c5cdd6d8c86ccb978e9ee

    SHA512

    726ad60eeb6868487336340d90d1fb56571b1ed4cae58766db95034b82f0523dcb57f60743dba8bc3df6876a2f34d9bab94f79ba7ae81aeb6ea33c41c6ceebc4

  • memory/2992-163-0x0000000074B50000-0x0000000075101000-memory.dmp

    Filesize

    5.7MB

  • memory/2992-162-0x0000000074B50000-0x0000000075101000-memory.dmp

    Filesize

    5.7MB

  • memory/3180-133-0x0000000074B50000-0x0000000075101000-memory.dmp

    Filesize

    5.7MB

  • memory/3180-132-0x0000000074B50000-0x0000000075101000-memory.dmp

    Filesize

    5.7MB

  • memory/3180-165-0x0000000074B50000-0x0000000075101000-memory.dmp

    Filesize

    5.7MB

  • memory/3856-179-0x0000000074B50000-0x0000000075101000-memory.dmp

    Filesize

    5.7MB

  • memory/3856-178-0x0000000074B50000-0x0000000075101000-memory.dmp

    Filesize

    5.7MB

  • memory/3888-156-0x0000000074B50000-0x0000000075101000-memory.dmp

    Filesize

    5.7MB

  • memory/3888-154-0x0000000074B50000-0x0000000075101000-memory.dmp

    Filesize

    5.7MB

  • memory/3888-164-0x0000000074B50000-0x0000000075101000-memory.dmp

    Filesize

    5.7MB

  • memory/4316-135-0x0000000000400000-0x000000000047D000-memory.dmp

    Filesize

    500KB

  • memory/4316-137-0x0000000000400000-0x000000000047D000-memory.dmp

    Filesize

    500KB

  • memory/4316-138-0x0000000000400000-0x000000000047D000-memory.dmp

    Filesize

    500KB

  • memory/4316-155-0x0000000000400000-0x000000000047D000-memory.dmp

    Filesize

    500KB

  • memory/4316-146-0x0000000000400000-0x000000000047D000-memory.dmp

    Filesize

    500KB

  • memory/4796-174-0x0000000000400000-0x000000000047D000-memory.dmp

    Filesize

    500KB