Analysis

  • max time kernel
    151s
  • max time network
    190s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 18:57

General

  • Target

    c48f5b3114bf2567207123069887a8107c6d46b5007f08af417ef54d246f7025.exe

  • Size

    249KB

  • MD5

    42e3cd06ebbe5263bff923ebc6c5e17f

  • SHA1

    67ccd9df36413674dadd68303342afc1a40d1a10

  • SHA256

    c48f5b3114bf2567207123069887a8107c6d46b5007f08af417ef54d246f7025

  • SHA512

    d30c5625ba0b17d56e4559b60f3012498b8b343929972ef07121368034a94b2e1def4bc343361b260d2386a2aa48958eec6f813bcec0c6b11ee70b0f4c64b06b

  • SSDEEP

    6144:3RxfUwLVCSIDmLSD7STLoLyBXHnuAAbtkOY1C:3RVJLLIiLSqTLVBHnuAAKrC

Malware Config

Extracted

Family

cybergate

Version

v1.07.5

Botnet

remote

C2

aubury.dyndns.org:100

Mutex

3IC26417U571GR

Attributes
  • enable_keylogger

    true

  • enable_message_box

    false

  • ftp_directory

    ./logs/

  • ftp_interval

    30

  • ftp_password

    2g9nqu6y

  • ftp_port

    21

  • ftp_server

    mickey24.webuda.com

  • ftp_username

    a7873893

  • injected_process

    explorer.exe

  • install_dir

    install

  • install_file

    server.exe

  • install_flag

    true

  • keylogger_enable_ftp

    true

  • message_box_caption

    Remote Administration anywhere in the world.

  • message_box_title

    CyberGate

  • password

    mickey3

  • 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 9 IoCs

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

  • Loads dropped DLL 4 IoCs
  • 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.

  • Modifies system certificate store 2 TTPs 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 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:1204
      • C:\Users\Admin\AppData\Local\Temp\c48f5b3114bf2567207123069887a8107c6d46b5007f08af417ef54d246f7025.exe
        "C:\Users\Admin\AppData\Local\Temp\c48f5b3114bf2567207123069887a8107c6d46b5007f08af417ef54d246f7025.exe"
        2⤵
        • Adds policy Run key to start application
        • Modifies Installed Components in the registry
        • Loads dropped DLL
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of WriteProcessMemory
        PID:2040
        • C:\Windows\SysWOW64\explorer.exe
          explorer.exe
          3⤵
          • Modifies Installed Components in the registry
          • Suspicious use of AdjustPrivilegeToken
          PID:460
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe"
          3⤵
            PID:1668
          • C:\Users\Admin\AppData\Local\Temp\c48f5b3114bf2567207123069887a8107c6d46b5007f08af417ef54d246f7025.exe
            "C:\Users\Admin\AppData\Local\Temp\c48f5b3114bf2567207123069887a8107c6d46b5007f08af417ef54d246f7025.exe"
            3⤵
            • Loads dropped DLL
            • Modifies system certificate store
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of AdjustPrivilegeToken
            PID:1468
            • C:\directory\CyberGate\install\server.exe
              "C:\directory\CyberGate\install\server.exe"
              4⤵
              • Executes dropped EXE
              PID:1956
          • C:\directory\CyberGate\install\server.exe
            "C:\directory\CyberGate\install\server.exe"
            3⤵
            • Executes dropped EXE
            PID:1628

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        225KB

        MD5

        e646c9fa7146888f7b587ac00d03510d

        SHA1

        65e5265772b3f7c5c2b7865b5ffe4949e3f11103

        SHA256

        bb5b2ff763d67c209e8e7daff4d84f04c3f55c25011d0e9fad8e890161ee2d2e

        SHA512

        9d64e02eddf6335728d6ee7b1ed042ac163773a433cb5c5e97f77f2b37309eee69bcba4d3408fa1dd8c3bb696dccffb72d09b359f41a3366b081615107ea4c5b

      • C:\directory\CyberGate\install\server.exe
        Filesize

        249KB

        MD5

        42e3cd06ebbe5263bff923ebc6c5e17f

        SHA1

        67ccd9df36413674dadd68303342afc1a40d1a10

        SHA256

        c48f5b3114bf2567207123069887a8107c6d46b5007f08af417ef54d246f7025

        SHA512

        d30c5625ba0b17d56e4559b60f3012498b8b343929972ef07121368034a94b2e1def4bc343361b260d2386a2aa48958eec6f813bcec0c6b11ee70b0f4c64b06b

      • C:\directory\CyberGate\install\server.exe
        Filesize

        249KB

        MD5

        42e3cd06ebbe5263bff923ebc6c5e17f

        SHA1

        67ccd9df36413674dadd68303342afc1a40d1a10

        SHA256

        c48f5b3114bf2567207123069887a8107c6d46b5007f08af417ef54d246f7025

        SHA512

        d30c5625ba0b17d56e4559b60f3012498b8b343929972ef07121368034a94b2e1def4bc343361b260d2386a2aa48958eec6f813bcec0c6b11ee70b0f4c64b06b

      • \??\c:\directory\CyberGate\install\server.exe
        Filesize

        249KB

        MD5

        42e3cd06ebbe5263bff923ebc6c5e17f

        SHA1

        67ccd9df36413674dadd68303342afc1a40d1a10

        SHA256

        c48f5b3114bf2567207123069887a8107c6d46b5007f08af417ef54d246f7025

        SHA512

        d30c5625ba0b17d56e4559b60f3012498b8b343929972ef07121368034a94b2e1def4bc343361b260d2386a2aa48958eec6f813bcec0c6b11ee70b0f4c64b06b

      • \directory\CyberGate\install\server.exe
        Filesize

        249KB

        MD5

        42e3cd06ebbe5263bff923ebc6c5e17f

        SHA1

        67ccd9df36413674dadd68303342afc1a40d1a10

        SHA256

        c48f5b3114bf2567207123069887a8107c6d46b5007f08af417ef54d246f7025

        SHA512

        d30c5625ba0b17d56e4559b60f3012498b8b343929972ef07121368034a94b2e1def4bc343361b260d2386a2aa48958eec6f813bcec0c6b11ee70b0f4c64b06b

      • \directory\CyberGate\install\server.exe
        Filesize

        249KB

        MD5

        42e3cd06ebbe5263bff923ebc6c5e17f

        SHA1

        67ccd9df36413674dadd68303342afc1a40d1a10

        SHA256

        c48f5b3114bf2567207123069887a8107c6d46b5007f08af417ef54d246f7025

        SHA512

        d30c5625ba0b17d56e4559b60f3012498b8b343929972ef07121368034a94b2e1def4bc343361b260d2386a2aa48958eec6f813bcec0c6b11ee70b0f4c64b06b

      • \directory\CyberGate\install\server.exe
        Filesize

        249KB

        MD5

        42e3cd06ebbe5263bff923ebc6c5e17f

        SHA1

        67ccd9df36413674dadd68303342afc1a40d1a10

        SHA256

        c48f5b3114bf2567207123069887a8107c6d46b5007f08af417ef54d246f7025

        SHA512

        d30c5625ba0b17d56e4559b60f3012498b8b343929972ef07121368034a94b2e1def4bc343361b260d2386a2aa48958eec6f813bcec0c6b11ee70b0f4c64b06b

      • \directory\CyberGate\install\server.exe
        Filesize

        249KB

        MD5

        42e3cd06ebbe5263bff923ebc6c5e17f

        SHA1

        67ccd9df36413674dadd68303342afc1a40d1a10

        SHA256

        c48f5b3114bf2567207123069887a8107c6d46b5007f08af417ef54d246f7025

        SHA512

        d30c5625ba0b17d56e4559b60f3012498b8b343929972ef07121368034a94b2e1def4bc343361b260d2386a2aa48958eec6f813bcec0c6b11ee70b0f4c64b06b

      • memory/460-66-0x00000000754B1000-0x00000000754B3000-memory.dmp
        Filesize

        8KB

      • memory/460-72-0x0000000010480000-0x00000000104E5000-memory.dmp
        Filesize

        404KB

      • memory/460-64-0x0000000000000000-mapping.dmp
      • memory/460-76-0x0000000010480000-0x00000000104E5000-memory.dmp
        Filesize

        404KB

      • memory/1204-61-0x0000000010410000-0x0000000010475000-memory.dmp
        Filesize

        404KB

      • memory/1468-102-0x0000000000400000-0x0000000000451000-memory.dmp
        Filesize

        324KB

      • memory/1468-104-0x0000000004750000-0x00000000047A1000-memory.dmp
        Filesize

        324KB

      • memory/1468-88-0x0000000010560000-0x00000000105C5000-memory.dmp
        Filesize

        404KB

      • memory/1468-109-0x0000000010560000-0x00000000105C5000-memory.dmp
        Filesize

        404KB

      • memory/1468-103-0x0000000010560000-0x00000000105C5000-memory.dmp
        Filesize

        404KB

      • memory/1468-81-0x0000000000000000-mapping.dmp
      • memory/1628-94-0x0000000000000000-mapping.dmp
      • memory/1628-107-0x0000000000400000-0x0000000000451000-memory.dmp
        Filesize

        324KB

      • memory/1628-106-0x0000000000400000-0x0000000000451000-memory.dmp
        Filesize

        324KB

      • memory/1628-101-0x0000000000220000-0x0000000000223000-memory.dmp
        Filesize

        12KB

      • memory/1956-105-0x0000000000400000-0x0000000000451000-memory.dmp
        Filesize

        324KB

      • memory/1956-108-0x0000000000400000-0x0000000000451000-memory.dmp
        Filesize

        324KB

      • memory/1956-92-0x0000000000000000-mapping.dmp
      • memory/1956-100-0x0000000000220000-0x0000000000223000-memory.dmp
        Filesize

        12KB

      • memory/2040-99-0x0000000000400000-0x0000000000451000-memory.dmp
        Filesize

        324KB

      • memory/2040-58-0x0000000010410000-0x0000000010475000-memory.dmp
        Filesize

        404KB

      • memory/2040-83-0x0000000010560000-0x00000000105C5000-memory.dmp
        Filesize

        404KB

      • memory/2040-67-0x0000000010480000-0x00000000104E5000-memory.dmp
        Filesize

        404KB

      • memory/2040-55-0x0000000000400000-0x0000000000451000-memory.dmp
        Filesize

        324KB

      • memory/2040-56-0x0000000000220000-0x0000000000223000-memory.dmp
        Filesize

        12KB

      • memory/2040-77-0x00000000104F0000-0x0000000010555000-memory.dmp
        Filesize

        404KB

      • memory/2040-54-0x00000000761E1000-0x00000000761E3000-memory.dmp
        Filesize

        8KB