Analysis

  • max time kernel
    178s
  • max time network
    191s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    06-12-2022 23:34

General

  • Target

    a5f1b1a528e2cf138ab966abb46069a01f8ba4f62009b91a5ef572e03c6595fd.exe

  • Size

    280KB

  • MD5

    d9cdac6b76c19890fa4425331194d053

  • SHA1

    93a4d30ef16af550827d7c5a0ab7267a8b6e6910

  • SHA256

    a5f1b1a528e2cf138ab966abb46069a01f8ba4f62009b91a5ef572e03c6595fd

  • SHA512

    791ef5a90c906d2128e099406789ed7cee2568139d70f5f7f1fbbe1adabfa5c2326d0b6f1aaba975a7f58e86b5735117849c5894d58750f04002a4f85efd8e6f

  • SSDEEP

    6144:O3LZcsxZZQttyCVxaWYSdMU/77hlruc6XmDoTbcI7CPPd5:KqeAtpVxagMU/plruchDofAP/

Malware Config

Extracted

Family

cybergate

Version

v1.02.0

Botnet

Slave

C2

twoshank.no-ip.info:82

Mutex

VC2XAYOA2N8X73

Attributes
  • enable_keylogger

    true

  • enable_message_box

    false

  • ftp_directory

    ./logs/

  • ftp_interval

    30

  • injected_process

    explorer.exe

  • install_dir

    install

  • install_file

    winlog.exe

  • install_flag

    true

  • keylogger_enable_ftp

    false

  • message_box_caption

    Remote Administration anywhere in the world.

  • message_box_title

    CyberGate

  • password

    abc123

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 2 IoCs
  • UPX packed file 5 IoCs

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

  • Loads dropped DLL 4 IoCs
  • Drops file in System32 directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 1 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:1280
      • C:\Users\Admin\AppData\Local\Temp\a5f1b1a528e2cf138ab966abb46069a01f8ba4f62009b91a5ef572e03c6595fd.exe
        "C:\Users\Admin\AppData\Local\Temp\a5f1b1a528e2cf138ab966abb46069a01f8ba4f62009b91a5ef572e03c6595fd.exe"
        2⤵
        • Adds policy Run key to start application
        • Modifies Installed Components in the registry
        • Loads dropped DLL
        • Drops file in System32 directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of WriteProcessMemory
        PID:1180
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe"
          3⤵
            PID:1308
          • C:\Users\Admin\AppData\Local\Temp\a5f1b1a528e2cf138ab966abb46069a01f8ba4f62009b91a5ef572e03c6595fd.exe
            "C:\Users\Admin\AppData\Local\Temp\a5f1b1a528e2cf138ab966abb46069a01f8ba4f62009b91a5ef572e03c6595fd.exe"
            3⤵
            • Loads dropped DLL
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of AdjustPrivilegeToken
            PID:824
            • C:\Windows\SysWOW64\install\winlog.exe
              "C:\Windows\system32\install\winlog.exe"
              4⤵
              • Executes dropped EXE
              PID:1864
          • C:\Windows\SysWOW64\install\winlog.exe
            "C:\Windows\system32\install\winlog.exe"
            3⤵
            • Executes dropped EXE
            PID:1652

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      Persistence

      Registry Run Keys / Startup Folder

      2
      T1060

      Defense Evasion

      Modify Registry

      2
      T1112

      Discovery

      System Information Discovery

      1
      T1082

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        219KB

        MD5

        31be9ed2b3007ff15f9cf858968a793e

        SHA1

        ec852ea276d0b71cff02b3a9bfe18dcd682586f7

        SHA256

        4ef5a1d403d1192ed025ce9e89b540547ba598cf283b73e20cb333c8c4d761cf

        SHA512

        ee766b0975a8444de8ce2659a618492fbe9efa005f7f7f9d353ade68ea4a767e4661df6ebeb2cac07a00a5944f4e39d76fc352cc6d6aff296094994e80788d08

      • C:\Windows\SysWOW64\install\winlog.exe
        Filesize

        280KB

        MD5

        d9cdac6b76c19890fa4425331194d053

        SHA1

        93a4d30ef16af550827d7c5a0ab7267a8b6e6910

        SHA256

        a5f1b1a528e2cf138ab966abb46069a01f8ba4f62009b91a5ef572e03c6595fd

        SHA512

        791ef5a90c906d2128e099406789ed7cee2568139d70f5f7f1fbbe1adabfa5c2326d0b6f1aaba975a7f58e86b5735117849c5894d58750f04002a4f85efd8e6f

      • C:\Windows\SysWOW64\install\winlog.exe
        Filesize

        280KB

        MD5

        d9cdac6b76c19890fa4425331194d053

        SHA1

        93a4d30ef16af550827d7c5a0ab7267a8b6e6910

        SHA256

        a5f1b1a528e2cf138ab966abb46069a01f8ba4f62009b91a5ef572e03c6595fd

        SHA512

        791ef5a90c906d2128e099406789ed7cee2568139d70f5f7f1fbbe1adabfa5c2326d0b6f1aaba975a7f58e86b5735117849c5894d58750f04002a4f85efd8e6f

      • C:\Windows\SysWOW64\install\winlog.exe
        Filesize

        280KB

        MD5

        d9cdac6b76c19890fa4425331194d053

        SHA1

        93a4d30ef16af550827d7c5a0ab7267a8b6e6910

        SHA256

        a5f1b1a528e2cf138ab966abb46069a01f8ba4f62009b91a5ef572e03c6595fd

        SHA512

        791ef5a90c906d2128e099406789ed7cee2568139d70f5f7f1fbbe1adabfa5c2326d0b6f1aaba975a7f58e86b5735117849c5894d58750f04002a4f85efd8e6f

      • \Windows\SysWOW64\install\winlog.exe
        Filesize

        280KB

        MD5

        d9cdac6b76c19890fa4425331194d053

        SHA1

        93a4d30ef16af550827d7c5a0ab7267a8b6e6910

        SHA256

        a5f1b1a528e2cf138ab966abb46069a01f8ba4f62009b91a5ef572e03c6595fd

        SHA512

        791ef5a90c906d2128e099406789ed7cee2568139d70f5f7f1fbbe1adabfa5c2326d0b6f1aaba975a7f58e86b5735117849c5894d58750f04002a4f85efd8e6f

      • \Windows\SysWOW64\install\winlog.exe
        Filesize

        280KB

        MD5

        d9cdac6b76c19890fa4425331194d053

        SHA1

        93a4d30ef16af550827d7c5a0ab7267a8b6e6910

        SHA256

        a5f1b1a528e2cf138ab966abb46069a01f8ba4f62009b91a5ef572e03c6595fd

        SHA512

        791ef5a90c906d2128e099406789ed7cee2568139d70f5f7f1fbbe1adabfa5c2326d0b6f1aaba975a7f58e86b5735117849c5894d58750f04002a4f85efd8e6f

      • \Windows\SysWOW64\install\winlog.exe
        Filesize

        280KB

        MD5

        d9cdac6b76c19890fa4425331194d053

        SHA1

        93a4d30ef16af550827d7c5a0ab7267a8b6e6910

        SHA256

        a5f1b1a528e2cf138ab966abb46069a01f8ba4f62009b91a5ef572e03c6595fd

        SHA512

        791ef5a90c906d2128e099406789ed7cee2568139d70f5f7f1fbbe1adabfa5c2326d0b6f1aaba975a7f58e86b5735117849c5894d58750f04002a4f85efd8e6f

      • \Windows\SysWOW64\install\winlog.exe
        Filesize

        280KB

        MD5

        d9cdac6b76c19890fa4425331194d053

        SHA1

        93a4d30ef16af550827d7c5a0ab7267a8b6e6910

        SHA256

        a5f1b1a528e2cf138ab966abb46069a01f8ba4f62009b91a5ef572e03c6595fd

        SHA512

        791ef5a90c906d2128e099406789ed7cee2568139d70f5f7f1fbbe1adabfa5c2326d0b6f1aaba975a7f58e86b5735117849c5894d58750f04002a4f85efd8e6f

      • memory/824-67-0x0000000024070000-0x00000000240CF000-memory.dmp
        Filesize

        380KB

      • memory/824-65-0x0000000024070000-0x00000000240CF000-memory.dmp
        Filesize

        380KB

      • memory/824-60-0x0000000000000000-mapping.dmp
      • memory/824-80-0x0000000024070000-0x00000000240CF000-memory.dmp
        Filesize

        380KB

      • memory/824-81-0x0000000024070000-0x00000000240CF000-memory.dmp
        Filesize

        380KB

      • memory/1180-62-0x0000000024070000-0x00000000240CF000-memory.dmp
        Filesize

        380KB

      • memory/1180-54-0x0000000076041000-0x0000000076043000-memory.dmp
        Filesize

        8KB

      • memory/1180-56-0x0000000024010000-0x000000002406F000-memory.dmp
        Filesize

        380KB

      • memory/1652-73-0x0000000000000000-mapping.dmp
      • memory/1864-75-0x0000000000000000-mapping.dmp