Analysis

  • max time kernel
    150s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    03/12/2022, 00:41

General

  • Target

    e5b965d1745b2fb1921238d63e759be15add293bc347c414783634b25f4bc70b.exe

  • Size

    296KB

  • MD5

    158c6761595ad11cbc2b3a3c5a6c92d0

  • SHA1

    3325837c147777b88d356d6c7136a9c9f8459d08

  • SHA256

    e5b965d1745b2fb1921238d63e759be15add293bc347c414783634b25f4bc70b

  • SHA512

    70afe6c58a06e5ac4107971321f1240b0201b529b4e42079e8d4946c79df56b9c1d6a3159f8f5a38491c7e742c5dc16c6cc9d7e6316709ec4b5fbfdd9961a849

  • SSDEEP

    6144:POpslFlq3hdBCkWYxuukP1pjSKSNVkq/MVJbb:Pwsl6TBd47GLRMTbb

Malware Config

Extracted

Family

cybergate

Version

v1.07.5

Botnet

cyber

C2

meegablackieman.no-ip.biz:9999

Mutex

C3R503SW3W70YB

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

    wurschti

  • 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 9 IoCs

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

  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Drops file in System32 directory 4 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 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:1388
      • C:\Users\Admin\AppData\Local\Temp\e5b965d1745b2fb1921238d63e759be15add293bc347c414783634b25f4bc70b.exe
        "C:\Users\Admin\AppData\Local\Temp\e5b965d1745b2fb1921238d63e759be15add293bc347c414783634b25f4bc70b.exe"
        2⤵
        • Adds policy Run key to start application
        • Modifies Installed Components in the registry
        • Adds Run key to start application
        • Drops file in System32 directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of WriteProcessMemory
        PID:1196
        • C:\Windows\SysWOW64\explorer.exe
          explorer.exe
          3⤵
          • Modifies Installed Components in the registry
          • Suspicious use of AdjustPrivilegeToken
          PID:1104
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe"
          3⤵
            PID:280
          • C:\Users\Admin\AppData\Local\Temp\e5b965d1745b2fb1921238d63e759be15add293bc347c414783634b25f4bc70b.exe
            "C:\Users\Admin\AppData\Local\Temp\e5b965d1745b2fb1921238d63e759be15add293bc347c414783634b25f4bc70b.exe"
            3⤵
            • Loads dropped DLL
            • Drops file in System32 directory
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of AdjustPrivilegeToken
            PID:1516
            • C:\Windows\SysWOW64\install\server.exe
              "C:\Windows\system32\install\server.exe"
              4⤵
              • Executes dropped EXE
              PID:560

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        224KB

        MD5

        ef903b6e66554b5f21556f7bce70de86

        SHA1

        2de4a1689f342cbc4da56857d9aede2e7c42517f

        SHA256

        185baee341197c1e9329e2f2c06cc2be0d4f7dde16e4da3d45fd4415c78d642f

        SHA512

        f4ead137d1f43ced62596ee8a31dbbd9510c9c982797f29cb1b2002776fbedbedb968eb4047e9b9cf5b287a4595c1d67645bcdae5945e0c800c792b0f114c25a

      • C:\Windows\SysWOW64\install\server.exe

        Filesize

        296KB

        MD5

        158c6761595ad11cbc2b3a3c5a6c92d0

        SHA1

        3325837c147777b88d356d6c7136a9c9f8459d08

        SHA256

        e5b965d1745b2fb1921238d63e759be15add293bc347c414783634b25f4bc70b

        SHA512

        70afe6c58a06e5ac4107971321f1240b0201b529b4e42079e8d4946c79df56b9c1d6a3159f8f5a38491c7e742c5dc16c6cc9d7e6316709ec4b5fbfdd9961a849

      • C:\Windows\SysWOW64\install\server.exe

        Filesize

        296KB

        MD5

        158c6761595ad11cbc2b3a3c5a6c92d0

        SHA1

        3325837c147777b88d356d6c7136a9c9f8459d08

        SHA256

        e5b965d1745b2fb1921238d63e759be15add293bc347c414783634b25f4bc70b

        SHA512

        70afe6c58a06e5ac4107971321f1240b0201b529b4e42079e8d4946c79df56b9c1d6a3159f8f5a38491c7e742c5dc16c6cc9d7e6316709ec4b5fbfdd9961a849

      • \Windows\SysWOW64\install\server.exe

        Filesize

        296KB

        MD5

        158c6761595ad11cbc2b3a3c5a6c92d0

        SHA1

        3325837c147777b88d356d6c7136a9c9f8459d08

        SHA256

        e5b965d1745b2fb1921238d63e759be15add293bc347c414783634b25f4bc70b

        SHA512

        70afe6c58a06e5ac4107971321f1240b0201b529b4e42079e8d4946c79df56b9c1d6a3159f8f5a38491c7e742c5dc16c6cc9d7e6316709ec4b5fbfdd9961a849

      • \Windows\SysWOW64\install\server.exe

        Filesize

        296KB

        MD5

        158c6761595ad11cbc2b3a3c5a6c92d0

        SHA1

        3325837c147777b88d356d6c7136a9c9f8459d08

        SHA256

        e5b965d1745b2fb1921238d63e759be15add293bc347c414783634b25f4bc70b

        SHA512

        70afe6c58a06e5ac4107971321f1240b0201b529b4e42079e8d4946c79df56b9c1d6a3159f8f5a38491c7e742c5dc16c6cc9d7e6316709ec4b5fbfdd9961a849

      • memory/1104-64-0x00000000751A1000-0x00000000751A3000-memory.dmp

        Filesize

        8KB

      • memory/1104-70-0x0000000010480000-0x00000000104E5000-memory.dmp

        Filesize

        404KB

      • memory/1104-73-0x0000000010480000-0x00000000104E5000-memory.dmp

        Filesize

        404KB

      • memory/1196-65-0x0000000010480000-0x00000000104E5000-memory.dmp

        Filesize

        404KB

      • memory/1196-81-0x0000000010560000-0x00000000105C5000-memory.dmp

        Filesize

        404KB

      • memory/1196-75-0x00000000104F0000-0x0000000010555000-memory.dmp

        Filesize

        404KB

      • memory/1196-54-0x0000000075D01000-0x0000000075D03000-memory.dmp

        Filesize

        8KB

      • memory/1196-56-0x0000000010410000-0x0000000010475000-memory.dmp

        Filesize

        404KB

      • memory/1388-59-0x0000000010410000-0x0000000010475000-memory.dmp

        Filesize

        404KB

      • memory/1516-86-0x0000000010560000-0x00000000105C5000-memory.dmp

        Filesize

        404KB

      • memory/1516-87-0x0000000010560000-0x00000000105C5000-memory.dmp

        Filesize

        404KB

      • memory/1516-93-0x0000000010560000-0x00000000105C5000-memory.dmp

        Filesize

        404KB