Analysis

  • max time kernel
    190s
  • max time network
    196s
  • 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 17:22

General

  • Target

    6e93a7eae8cfc5ebd7fa990757037411ba0a8d8294a09162d49f0e59eb3853f7.exe

  • Size

    276KB

  • MD5

    4c49b13e78be30704ceb69c781c3f3fa

  • SHA1

    8000c6e592ba10a77cf91fc5870015f6c417e7dc

  • SHA256

    6e93a7eae8cfc5ebd7fa990757037411ba0a8d8294a09162d49f0e59eb3853f7

  • SHA512

    b901a87a97353f181af923a1d6f237a721c1cdec98190b5fc5fb03735584cf13114152cb24f24c365d10beecc4158c501fc7dd2045714e87a45a47ff4878b8c4

  • SSDEEP

    6144:/4ABF94x3pAuO/50BTnyZsSaXhh4XAS79hO9R0O91FG+N:wUtGLyWSKaAS79MEqfG6

Malware Config

Extracted

Family

cybergate

Version

v1.05.1

Botnet

remote

C2

3xch4ng3.no-ip.biz:90

Mutex

3ODETYQW7J5TYH

Attributes
  • enable_keylogger

    true

  • enable_message_box

    true

  • ftp_directory

    ./logs/

  • ftp_interval

    30

  • injected_process

    explorer.exe

  • install_dir

    install

  • install_file

    svchost.exe

  • install_flag

    true

  • keylogger_enable_ftp

    false

  • message_box_caption

    Error Code : 1234 0xC0001234

  • message_box_title

    Unable to open file.

  • password

    cybergate

  • 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
  • Drops file in Drivers directory 2 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
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 2 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 WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:2644
      • C:\Users\Admin\AppData\Local\Temp\6e93a7eae8cfc5ebd7fa990757037411ba0a8d8294a09162d49f0e59eb3853f7.exe
        "C:\Users\Admin\AppData\Local\Temp\6e93a7eae8cfc5ebd7fa990757037411ba0a8d8294a09162d49f0e59eb3853f7.exe"
        2⤵
        • Adds policy Run key to start application
        • Drops file in Drivers directory
        • Modifies Installed Components in the registry
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of WriteProcessMemory
        PID:4092
        • C:\Windows\SysWOW64\explorer.exe
          explorer.exe
          3⤵
          • Modifies Installed Components in the registry
          PID:224
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe"
          3⤵
            PID:2092
          • C:\Users\Admin\AppData\Local\Temp\6e93a7eae8cfc5ebd7fa990757037411ba0a8d8294a09162d49f0e59eb3853f7.exe
            "C:\Users\Admin\AppData\Local\Temp\6e93a7eae8cfc5ebd7fa990757037411ba0a8d8294a09162d49f0e59eb3853f7.exe"
            3⤵
            • Checks computer location settings
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of AdjustPrivilegeToken
            PID:2648
            • C:\WINDOWS\SysWOW64\drivers\directory\CyberGate\install\svchost.exe
              "C:\WINDOWS\system32\drivers\directory\CyberGate\install\svchost.exe"
              4⤵
              • Executes dropped EXE
              PID:428
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 428 -s 568
                5⤵
                • Program crash
                PID:3872
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 428 -s 568
                5⤵
                • Program crash
                PID:4208
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 428 -ip 428
        1⤵
          PID:4336

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          222KB

          MD5

          21d71ed0e1177fd8fdd93d00e36f26f0

          SHA1

          f2e94dbda6f9573ccdc3c83344cfded926aa6d53

          SHA256

          a3dca24f0dcd48e277d849382a6461a3ea8a043353929984583a84ed72f2621c

          SHA512

          bcc11de9f9ff40afb34fc0b305f82e8ee28d8fadc92bece065e0202b195cecf3034eead7cffea2cc8e277d996f5f4fd9b186775cef9b535c6cb827d3a97b0fc1

        • C:\Windows\SysWOW64\drivers\directory\CyberGate\install\svchost.exe

          Filesize

          276KB

          MD5

          4c49b13e78be30704ceb69c781c3f3fa

          SHA1

          8000c6e592ba10a77cf91fc5870015f6c417e7dc

          SHA256

          6e93a7eae8cfc5ebd7fa990757037411ba0a8d8294a09162d49f0e59eb3853f7

          SHA512

          b901a87a97353f181af923a1d6f237a721c1cdec98190b5fc5fb03735584cf13114152cb24f24c365d10beecc4158c501fc7dd2045714e87a45a47ff4878b8c4

        • \??\c:\WINDOWS\SysWOW64\drivers\directory\CyberGate\install\svchost.exe

          Filesize

          276KB

          MD5

          4c49b13e78be30704ceb69c781c3f3fa

          SHA1

          8000c6e592ba10a77cf91fc5870015f6c417e7dc

          SHA256

          6e93a7eae8cfc5ebd7fa990757037411ba0a8d8294a09162d49f0e59eb3853f7

          SHA512

          b901a87a97353f181af923a1d6f237a721c1cdec98190b5fc5fb03735584cf13114152cb24f24c365d10beecc4158c501fc7dd2045714e87a45a47ff4878b8c4

        • memory/224-142-0x0000000010480000-0x00000000104E1000-memory.dmp

          Filesize

          388KB

        • memory/224-141-0x0000000010480000-0x00000000104E1000-memory.dmp

          Filesize

          388KB

        • memory/224-158-0x0000000010480000-0x00000000104E1000-memory.dmp

          Filesize

          388KB

        • memory/224-137-0x0000000000000000-mapping.dmp

        • memory/428-155-0x0000000000000000-mapping.dmp

        • memory/2648-157-0x0000000010560000-0x00000000105C1000-memory.dmp

          Filesize

          388KB

        • memory/2648-154-0x0000000010560000-0x00000000105C1000-memory.dmp

          Filesize

          388KB

        • memory/2648-150-0x0000000000000000-mapping.dmp

        • memory/2648-159-0x0000000010560000-0x00000000105C1000-memory.dmp

          Filesize

          388KB

        • memory/3872-160-0x0000000000000000-mapping.dmp

        • memory/4092-151-0x0000000010560000-0x00000000105C1000-memory.dmp

          Filesize

          388KB

        • memory/4092-146-0x00000000104F0000-0x0000000010551000-memory.dmp

          Filesize

          388KB

        • memory/4092-133-0x0000000010410000-0x0000000010471000-memory.dmp

          Filesize

          388KB

        • memory/4092-138-0x0000000010480000-0x00000000104E1000-memory.dmp

          Filesize

          388KB