Analysis

  • max time kernel
    152s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    06/12/2022, 14:34

General

  • Target

    c34fff6b00398494bbd050ec7120a19c8029d66d7c3ce88be8316e406b01e8ec.exe

  • Size

    364KB

  • MD5

    8c06adaff27672f1a2729edc2222c573

  • SHA1

    d4181db916f1a918d0f66b726d89877e6da3be46

  • SHA256

    c34fff6b00398494bbd050ec7120a19c8029d66d7c3ce88be8316e406b01e8ec

  • SHA512

    8c8215368025234d215a501b626ed9c202de111da3bb2b17a25bc348a6d4ba6816c88e9a78f31c1a50799c0638c95b57296a062de47de30d4262eeefdf0277d6

  • SSDEEP

    6144:6nqSeVnRwxNJs/Myg7vxloyXJZbj84WM9UjV9dZnzvNcIwBU/VApZnuABO:6lRygHoyHHR9O9dZb2BiVArrO

Malware Config

Signatures

  • Modifies firewall policy service 2 TTPs 8 IoCs
  • Adds policy Run key to start application 2 TTPs 2 IoCs
  • Modifies Installed Components in the registry 2 TTPs 4 IoCs
  • UPX packed file 7 IoCs

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

  • Adds Run key to start application 2 TTPs 4 IoCs
  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Suspicious use of SetThreadContext 2 IoCs
  • Modifies registry key 1 TTPs 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 36 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 49 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c34fff6b00398494bbd050ec7120a19c8029d66d7c3ce88be8316e406b01e8ec.exe
    "C:\Users\Admin\AppData\Local\Temp\c34fff6b00398494bbd050ec7120a19c8029d66d7c3ce88be8316e406b01e8ec.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1884
    • C:\Users\Admin\AppData\Local\Temp\c34fff6b00398494bbd050ec7120a19c8029d66d7c3ce88be8316e406b01e8ec.exe
      "C:\Users\Admin\AppData\Local\Temp\c34fff6b00398494bbd050ec7120a19c8029d66d7c3ce88be8316e406b01e8ec.exe"
      2⤵
      • Writes to the Master Boot Record (MBR)
      • Suspicious use of SetThreadContext
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1872
      • C:\Users\Admin\AppData\Local\Temp\c34fff6b00398494bbd050ec7120a19c8029d66d7c3ce88be8316e406b01e8ec.exe
        "C:\Users\Admin\AppData\Local\Temp\c34fff6b00398494bbd050ec7120a19c8029d66d7c3ce88be8316e406b01e8ec.exe"
        3⤵
        • Adds policy Run key to start application
        • Modifies Installed Components in the registry
        • Adds Run key to start application
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1924
        • 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⤵
          • Suspicious use of WriteProcessMemory
          PID:1852
          • 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
            • Modifies registry key
            PID:752
        • 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\c34fff6b00398494bbd050ec7120a19c8029d66d7c3ce88be8316e406b01e8ec.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\c34fff6b00398494bbd050ec7120a19c8029d66d7c3ce88be8316e406b01e8ec.exe:*:Enabled:Windows Messanger" /f
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:916
          • C:\Windows\SysWOW64\reg.exe
            REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Local\Temp\c34fff6b00398494bbd050ec7120a19c8029d66d7c3ce88be8316e406b01e8ec.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\c34fff6b00398494bbd050ec7120a19c8029d66d7c3ce88be8316e406b01e8ec.exe:*:Enabled:Windows Messanger" /f
            5⤵
            • Modifies firewall policy service
            • Modifies registry key
            PID:276
        • 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⤵
          • Suspicious use of WriteProcessMemory
          PID:564
          • 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
            • Modifies registry key
            PID:1328
        • 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\Devnull.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Devnull.exe:*:Enabled:Windows Messanger" /f
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1432
          • C:\Windows\SysWOW64\reg.exe
            REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\Devnull.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Devnull.exe:*:Enabled:Windows Messanger" /f
            5⤵
            • Modifies firewall policy service
            • Modifies registry key
            PID:1444

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • memory/1872-62-0x0000000000400000-0x0000000000435000-memory.dmp

          Filesize

          212KB

        • memory/1872-56-0x0000000000400000-0x0000000000435000-memory.dmp

          Filesize

          212KB

        • memory/1872-88-0x0000000000400000-0x0000000000435000-memory.dmp

          Filesize

          212KB

        • memory/1872-59-0x0000000000400000-0x0000000000435000-memory.dmp

          Filesize

          212KB

        • memory/1872-57-0x0000000000400000-0x0000000000435000-memory.dmp

          Filesize

          212KB

        • memory/1924-68-0x0000000000400000-0x0000000000473000-memory.dmp

          Filesize

          460KB

        • memory/1924-79-0x0000000075571000-0x0000000075573000-memory.dmp

          Filesize

          8KB

        • memory/1924-75-0x0000000000400000-0x0000000000473000-memory.dmp

          Filesize

          460KB

        • memory/1924-74-0x0000000000400000-0x0000000000473000-memory.dmp

          Filesize

          460KB

        • memory/1924-71-0x0000000000400000-0x0000000000473000-memory.dmp

          Filesize

          460KB

        • memory/1924-70-0x0000000000400000-0x0000000000473000-memory.dmp

          Filesize

          460KB

        • memory/1924-89-0x0000000000400000-0x0000000000473000-memory.dmp

          Filesize

          460KB

        • memory/1924-67-0x0000000000400000-0x0000000000473000-memory.dmp

          Filesize

          460KB

        • memory/1924-90-0x0000000000400000-0x0000000000473000-memory.dmp

          Filesize

          460KB