Analysis

  • max time kernel
    177s
  • max time network
    190s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 17:07

General

  • Target

    512c35f6047798e237e8cf1f3731331b81d9cb42328acb7c012368acb427534a.exe

  • Size

    296KB

  • MD5

    44c29c6c513b8e21ef91f90fb04df9ef

  • SHA1

    e18d0043b46b63e254d0d756a8db64468196d390

  • SHA256

    512c35f6047798e237e8cf1f3731331b81d9cb42328acb7c012368acb427534a

  • SHA512

    a1105b756d1af23ad0ce9f643b961b657e0a3afa708d0ea0f3e768847345bd144a6e4f6281ae79be145d11294360988f83579401979de968434a156e3012ec47

  • SSDEEP

    6144:POpslFlqZhdBCkWYxuukP1pjSKSNVkq/MVJbr:PwsloTBd47GLRMTbr

Malware Config

Extracted

Family

cybergate

Version

v1.07.5

Botnet

remote

C2

delldhp.no-ip.biz:100

Mutex

82P412HLB7618F

Attributes
  • enable_keylogger

    true

  • enable_message_box

    false

  • ftp_directory

    ./logs/

  • ftp_interval

    30

  • injected_process

    explorer.exe

  • install_dir

    WinDir

  • install_file

    Svchost.exe

  • install_flag

    true

  • keylogger_enable_ftp

    false

  • message_box_caption

    Remote Administration anywhere in the world.

  • message_box_title

    CyberGate

  • password

    123456

  • regkey_hkcu

    HKCU

  • regkey_hklm

    HKLM

Signatures

  • CyberGate, Rebhip

    CyberGate is a lightweight remote administration tool with a wide array of functionalities.

  • Adds policy Run key to start application 2 TTPs 4 IoCs
  • Executes dropped EXE 1 IoCs
  • Modifies Installed Components in the registry 2 TTPs 4 IoCs
  • UPX packed file 10 IoCs

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

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Adds Run key to start application 2 TTPs 4 IoCs
  • Drops file in Program Files directory 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:2640
      • C:\Users\Admin\AppData\Local\Temp\512c35f6047798e237e8cf1f3731331b81d9cb42328acb7c012368acb427534a.exe
        "C:\Users\Admin\AppData\Local\Temp\512c35f6047798e237e8cf1f3731331b81d9cb42328acb7c012368acb427534a.exe"
        2⤵
        • Adds policy Run key to start application
        • Modifies Installed Components in the registry
        • Adds Run key to start application
        • Drops file in Program Files directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of WriteProcessMemory
        PID:2016
        • C:\Windows\SysWOW64\explorer.exe
          explorer.exe
          3⤵
          • Modifies Installed Components in the registry
          • Suspicious use of AdjustPrivilegeToken
          PID:4008
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe"
          3⤵
            PID:5008
          • C:\Users\Admin\AppData\Local\Temp\512c35f6047798e237e8cf1f3731331b81d9cb42328acb7c012368acb427534a.exe
            "C:\Users\Admin\AppData\Local\Temp\512c35f6047798e237e8cf1f3731331b81d9cb42328acb7c012368acb427534a.exe"
            3⤵
            • Checks computer location settings
            • Drops file in Program Files directory
            • Modifies registry class
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of AdjustPrivilegeToken
            PID:4232
            • C:\Program Files (x86)\WinDir\Svchost.exe
              "C:\Program Files (x86)\WinDir\Svchost.exe"
              4⤵
              • Executes dropped EXE
              PID:4328
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 4328 -s 584
                5⤵
                • Program crash
                PID:4400
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4328 -ip 4328
        1⤵
          PID:1192

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Program Files (x86)\WinDir\Svchost.exe

          Filesize

          296KB

          MD5

          44c29c6c513b8e21ef91f90fb04df9ef

          SHA1

          e18d0043b46b63e254d0d756a8db64468196d390

          SHA256

          512c35f6047798e237e8cf1f3731331b81d9cb42328acb7c012368acb427534a

          SHA512

          a1105b756d1af23ad0ce9f643b961b657e0a3afa708d0ea0f3e768847345bd144a6e4f6281ae79be145d11294360988f83579401979de968434a156e3012ec47

        • C:\Program Files (x86)\WinDir\Svchost.exe

          Filesize

          296KB

          MD5

          44c29c6c513b8e21ef91f90fb04df9ef

          SHA1

          e18d0043b46b63e254d0d756a8db64468196d390

          SHA256

          512c35f6047798e237e8cf1f3731331b81d9cb42328acb7c012368acb427534a

          SHA512

          a1105b756d1af23ad0ce9f643b961b657e0a3afa708d0ea0f3e768847345bd144a6e4f6281ae79be145d11294360988f83579401979de968434a156e3012ec47

        • C:\Users\Admin\AppData\Local\Temp\Admin2.txt

          Filesize

          224KB

          MD5

          b4fe898c7977e25f450ca7fcfd8973dd

          SHA1

          73a8e279f8ef3db54187ca4dcfa568eca89089c1

          SHA256

          109405fcf90c393b99260fddc8f30e36b438e87a8de2e3e4eb5b09e179d4ffe2

          SHA512

          a0094a872070f85c865a0879b53e270891fdf996ba47f18338725647a12e3921dc41f8e28e29395480379f22f2c76a63c2b613915dba34361bfa0b45f2d82e4d

        • memory/2016-138-0x0000000010480000-0x00000000104E5000-memory.dmp

          Filesize

          404KB

        • memory/2016-146-0x00000000104F0000-0x0000000010555000-memory.dmp

          Filesize

          404KB

        • memory/2016-133-0x0000000010410000-0x0000000010475000-memory.dmp

          Filesize

          404KB

        • memory/2016-151-0x0000000010560000-0x00000000105C5000-memory.dmp

          Filesize

          404KB

        • memory/4008-137-0x0000000000000000-mapping.dmp

        • memory/4008-141-0x0000000010480000-0x00000000104E5000-memory.dmp

          Filesize

          404KB

        • memory/4008-142-0x0000000010480000-0x00000000104E5000-memory.dmp

          Filesize

          404KB

        • memory/4008-158-0x0000000010480000-0x00000000104E5000-memory.dmp

          Filesize

          404KB

        • memory/4232-150-0x0000000000000000-mapping.dmp

        • memory/4232-155-0x0000000010560000-0x00000000105C5000-memory.dmp

          Filesize

          404KB

        • memory/4232-154-0x0000000010560000-0x00000000105C5000-memory.dmp

          Filesize

          404KB

        • memory/4232-159-0x0000000010560000-0x00000000105C5000-memory.dmp

          Filesize

          404KB

        • memory/4328-156-0x0000000000000000-mapping.dmp