Analysis

  • max time kernel
    156s
  • max time network
    164s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-10-2022 02:31

General

  • Target

    09b22c329159e2b18f595f45c97dce3783a212d4e1ff9944e6001364fec28879.exe

  • Size

    348KB

  • MD5

    7975b8487d0e00aaf52011131829863c

  • SHA1

    b114bb5a9398f5054bc91e20c73c9e7af73f67b1

  • SHA256

    09b22c329159e2b18f595f45c97dce3783a212d4e1ff9944e6001364fec28879

  • SHA512

    93099bfc27cc69265d0f983e393843f4bfaf5fd203c4b112e2eaedb767620a4f35ff1b309a721c53167473fa49fff85d028e2c2c255add899b62780d0e66142e

  • SSDEEP

    6144:iaAyt2t49eQvTKDL1Wg8xamOSSlH61HNkJJIc5ysQCzmxfbhXUEHFhf:Qyt2t493uDLYg8xam3KH6HNoQAKxfbhh

Malware Config

Extracted

Family

cybergate

Version

v1.02.0

Botnet

COBA OE SERVER CRYPTER

C2

dancuk.no-ip.biz:82

Mutex

QRW48233JS0V3V

Attributes
  • enable_keylogger

    true

  • enable_message_box

    false

  • ftp_directory

    ./logs/

  • ftp_interval

    30

  • injected_process

    explorer.exe

  • install_dir

    install

  • install_file

    server.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 2 IoCs
  • Modifies Installed Components in the registry 2 TTPs 4 IoCs
  • UPX packed file 17 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
  • Suspicious use of SetThreadContext 2 IoCs
  • Drops file in Windows 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 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3032
      • C:\Users\Admin\AppData\Local\Temp\09b22c329159e2b18f595f45c97dce3783a212d4e1ff9944e6001364fec28879.exe
        "C:\Users\Admin\AppData\Local\Temp\09b22c329159e2b18f595f45c97dce3783a212d4e1ff9944e6001364fec28879.exe"
        2⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:4416
        • C:\Users\Admin\AppData\Local\Temp\09b22c329159e2b18f595f45c97dce3783a212d4e1ff9944e6001364fec28879.exe
          "C:\Users\Admin\AppData\Local\Temp\09b22c329159e2b18f595f45c97dce3783a212d4e1ff9944e6001364fec28879.exe"
          3⤵
          • Adds policy Run key to start application
          • Modifies Installed Components in the registry
          • Adds Run key to start application
          • Drops file in Windows directory
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of WriteProcessMemory
          PID:3608
          • C:\Windows\SysWOW64\explorer.exe
            explorer.exe
            4⤵
            • Modifies Installed Components in the registry
            PID:4816
          • C:\Program Files\Internet Explorer\iexplore.exe
            "C:\Program Files\Internet Explorer\iexplore.exe"
            4⤵
              PID:4908
            • C:\Users\Admin\AppData\Local\Temp\09b22c329159e2b18f595f45c97dce3783a212d4e1ff9944e6001364fec28879.exe
              "C:\Users\Admin\AppData\Local\Temp\09b22c329159e2b18f595f45c97dce3783a212d4e1ff9944e6001364fec28879.exe"
              4⤵
              • Checks computer location settings
              • Drops file in Windows directory
              • Modifies registry class
              • Suspicious behavior: GetForegroundWindowSpam
              • Suspicious use of AdjustPrivilegeToken
              PID:4160
              • C:\Windows\install\server.exe
                "C:\Windows\install\server.exe"
                5⤵
                • Executes dropped EXE
                • Suspicious use of SetThreadContext
                • Suspicious use of SetWindowsHookEx
                PID:3488
                • C:\Windows\install\server.exe
                  "C:\Windows\install\server.exe"
                  6⤵
                  • Executes dropped EXE
                  PID:2980
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -u -p 2980 -s 528
                    7⤵
                    • Program crash
                    PID:4764
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 376 -p 2980 -ip 2980
        1⤵
          PID:4988

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\XX--XX--XX.txt

          Filesize

          219KB

          MD5

          c35d64a36562a8ef78967d71f6b03bd8

          SHA1

          4ae50f630a70c881a8eacb9bb5698eabb9161be4

          SHA256

          51470b002db534df899ad0f07b23404b02e2b94b06f7e7930bdd0970735d34f4

          SHA512

          9b0441ca63a10d907ff1bb52c1194ed8d0cbf84b191ed6404b824471e10aee398eb21825990f696f46d4ddf3c002737ec749c4a1f3ddd6a5e8c5fcbc1ad81f82

        • C:\Windows\install\server.exe

          Filesize

          348KB

          MD5

          7975b8487d0e00aaf52011131829863c

          SHA1

          b114bb5a9398f5054bc91e20c73c9e7af73f67b1

          SHA256

          09b22c329159e2b18f595f45c97dce3783a212d4e1ff9944e6001364fec28879

          SHA512

          93099bfc27cc69265d0f983e393843f4bfaf5fd203c4b112e2eaedb767620a4f35ff1b309a721c53167473fa49fff85d028e2c2c255add899b62780d0e66142e

        • C:\Windows\install\server.exe

          Filesize

          348KB

          MD5

          7975b8487d0e00aaf52011131829863c

          SHA1

          b114bb5a9398f5054bc91e20c73c9e7af73f67b1

          SHA256

          09b22c329159e2b18f595f45c97dce3783a212d4e1ff9944e6001364fec28879

          SHA512

          93099bfc27cc69265d0f983e393843f4bfaf5fd203c4b112e2eaedb767620a4f35ff1b309a721c53167473fa49fff85d028e2c2c255add899b62780d0e66142e

        • C:\Windows\install\server.exe

          Filesize

          348KB

          MD5

          7975b8487d0e00aaf52011131829863c

          SHA1

          b114bb5a9398f5054bc91e20c73c9e7af73f67b1

          SHA256

          09b22c329159e2b18f595f45c97dce3783a212d4e1ff9944e6001364fec28879

          SHA512

          93099bfc27cc69265d0f983e393843f4bfaf5fd203c4b112e2eaedb767620a4f35ff1b309a721c53167473fa49fff85d028e2c2c255add899b62780d0e66142e

        • memory/2980-175-0x0000000000400000-0x0000000000455000-memory.dmp

          Filesize

          340KB

        • memory/2980-174-0x0000000000400000-0x0000000000455000-memory.dmp

          Filesize

          340KB

        • memory/2980-173-0x0000000000400000-0x0000000000455000-memory.dmp

          Filesize

          340KB

        • memory/2980-169-0x0000000000000000-mapping.dmp

        • memory/3488-165-0x0000000000000000-mapping.dmp

        • memory/3608-139-0x0000000000400000-0x0000000000455000-memory.dmp

          Filesize

          340KB

        • memory/3608-146-0x0000000024070000-0x00000000240CF000-memory.dmp

          Filesize

          380KB

        • memory/3608-135-0x0000000000400000-0x0000000000455000-memory.dmp

          Filesize

          340KB

        • memory/3608-137-0x0000000000400000-0x0000000000455000-memory.dmp

          Filesize

          340KB

        • memory/3608-134-0x0000000000000000-mapping.dmp

        • memory/3608-159-0x0000000024130000-0x000000002418F000-memory.dmp

          Filesize

          380KB

        • memory/3608-138-0x0000000000400000-0x0000000000455000-memory.dmp

          Filesize

          340KB

        • memory/3608-141-0x0000000024010000-0x000000002406F000-memory.dmp

          Filesize

          380KB

        • memory/3608-163-0x0000000000400000-0x0000000000455000-memory.dmp

          Filesize

          340KB

        • memory/3608-152-0x00000000240D0000-0x000000002412F000-memory.dmp

          Filesize

          380KB

        • memory/4160-156-0x0000000000000000-mapping.dmp

        • memory/4160-162-0x0000000024130000-0x000000002418F000-memory.dmp

          Filesize

          380KB

        • memory/4160-164-0x0000000024130000-0x000000002418F000-memory.dmp

          Filesize

          380KB

        • memory/4816-145-0x0000000000000000-mapping.dmp

        • memory/4816-150-0x0000000024070000-0x00000000240CF000-memory.dmp

          Filesize

          380KB

        • memory/4816-149-0x0000000024070000-0x00000000240CF000-memory.dmp

          Filesize

          380KB

        • memory/4816-176-0x0000000024070000-0x00000000240CF000-memory.dmp

          Filesize

          380KB