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Analysis

  • max time kernel
    119s
  • max time network
    16s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    04/10/2024, 15:37

General

  • Target

    c11446bf752a29289d345fef384c832d53840dd5cf2d3a136e294c960b72ad16N.exe

  • Size

    1.7MB

  • MD5

    3827105fb0ee82b61b8e4cd09f1d7630

  • SHA1

    8100d036511f062163ac7a820ecd197e0bd964ce

  • SHA256

    c11446bf752a29289d345fef384c832d53840dd5cf2d3a136e294c960b72ad16

  • SHA512

    74231ab358650cdbd405ce0cdf1a094ab638b886559a7c64f9cc0ff413c1359263dbe1fca91be1c5944d56e58b2070a0c55984446065c6fc628f1f3c61b43d3c

  • SSDEEP

    12288:Y6sg9q8utL6R91NNaUfViptH0D9wvT1xkZTWbq6Pknm2N5kv7Z62J5ugQ8cY47Os:YyG6RGjv7biFpVUM

Malware Config

Signatures

  • Modifies firewall policy service 3 TTPs 8 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 7 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • UPX packed file 21 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 14 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies registry key 1 TTPs 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 36 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 62 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c11446bf752a29289d345fef384c832d53840dd5cf2d3a136e294c960b72ad16N.exe
    "C:\Users\Admin\AppData\Local\Temp\c11446bf752a29289d345fef384c832d53840dd5cf2d3a136e294c960b72ad16N.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2612
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\LjVsF.bat" "
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2924
      • C:\Windows\SysWOW64\reg.exe
        REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "WinUpdt" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Window Updates\winupdt3.exe" /f
        3⤵
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        PID:2792
    • C:\Users\Admin\AppData\Roaming\Window Updates\winupdt3.exe
      "C:\Users\Admin\AppData\Roaming\Window Updates\winupdt3.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2912
      • C:\Users\Admin\AppData\Roaming\Window Updates\winupdt3.exe
        "C:\Users\Admin\AppData\Roaming\Window Updates\winupdt3.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2760
        • 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
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2640
          • C:\Windows\SysWOW64\reg.exe
            REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
            5⤵
            • Modifies firewall policy service
            • System Location Discovery: System Language Discovery
            • Modifies registry key
            PID:2624
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\Window Updates\winupdt3.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Window Updates\winupdt3.exe:*:Enabled:Windows Messanger" /f
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2648
          • C:\Windows\SysWOW64\reg.exe
            REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\Window Updates\winupdt3.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Window Updates\winupdt3.exe:*:Enabled:Windows Messanger" /f
            5⤵
            • Modifies firewall policy service
            • System Location Discovery: System Language Discovery
            • Modifies registry key
            PID:1720
        • 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
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2656
          • C:\Windows\SysWOW64\reg.exe
            REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
            5⤵
            • Modifies firewall policy service
            • System Location Discovery: System Language Discovery
            • Modifies registry key
            PID:1560
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\local.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\local.exe:*:Enabled:Windows Messanger" /f
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2708
          • C:\Windows\SysWOW64\reg.exe
            REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\local.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\local.exe:*:Enabled:Windows Messanger" /f
            5⤵
            • Modifies firewall policy service
            • System Location Discovery: System Language Discovery
            • Modifies registry key
            PID:1048
      • C:\Users\Admin\AppData\Roaming\Window Updates\winupdt3.exe
        "C:\Users\Admin\AppData\Roaming\Window Updates\winupdt3.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:2928

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\LjVsF.bat

    Filesize

    152B

    MD5

    deba559edd7e3c8dcc3e27362ac41cde

    SHA1

    a5688d69bc779c836262874f344de154ae7e7219

    SHA256

    49f5709cc8357f7e406ae904f54d82d476094e2e93dc93308147d8ed9a175a90

    SHA512

    9296532fd85f48b49802be12a8581453f84274cada2433d082d5901bd86c57c86bdcc4bd4420d2f6014d1e964f0b1234eb0d34bd23ffad22c9ae02f615847fbd

  • C:\Users\Admin\AppData\Roaming\Window Updates\winupdt3.exe

    Filesize

    1.7MB

    MD5

    84b22ff9557d25c34d5456103b123172

    SHA1

    bbf712e64bc2f2ec3fd87e6f409b2f9b4039d44f

    SHA256

    865a89be2aec54fa48919b74bd71daa6264843ce0c90ad7da76fbc049b107df7

    SHA512

    c3f33bc23176e40fdcf6af4f212190c55f2ff05567e3dc0dc10f9f95bbf23fa10b80edb392aa635eadca98ca2d5d84c5b28419693a42b82c92afe927a359a55a

  • memory/2612-0-0x0000000000400000-0x00000000005B6000-memory.dmp

    Filesize

    1.7MB

  • memory/2612-42-0x00000000032C0000-0x0000000003476000-memory.dmp

    Filesize

    1.7MB

  • memory/2612-45-0x0000000000400000-0x00000000005B6000-memory.dmp

    Filesize

    1.7MB

  • memory/2760-71-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/2760-73-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/2760-81-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/2760-51-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/2760-83-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/2760-55-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/2760-97-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/2760-79-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/2760-76-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/2760-95-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/2760-88-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/2760-56-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/2912-62-0x0000000000400000-0x00000000005B6000-memory.dmp

    Filesize

    1.7MB

  • memory/2912-70-0x0000000002910000-0x0000000002AC6000-memory.dmp

    Filesize

    1.7MB

  • memory/2912-44-0x0000000000400000-0x00000000005B6000-memory.dmp

    Filesize

    1.7MB

  • memory/2912-50-0x0000000002810000-0x00000000029C6000-memory.dmp

    Filesize

    1.7MB

  • memory/2928-61-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2928-57-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2928-60-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2928-72-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB