Analysis

  • max time kernel
    162s
  • max time network
    168s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14-10-2022 09:29

General

  • Target

    d038b9b1e94f9fd687563b7d301632936af4cc67b3e5e8808263dc94dabb0fab.exe

  • Size

    416KB

  • MD5

    7657537c0a4c38443aa0363deabe29b0

  • SHA1

    08aa2b9434a93086f30c6adff40a2fe7de95a14a

  • SHA256

    d038b9b1e94f9fd687563b7d301632936af4cc67b3e5e8808263dc94dabb0fab

  • SHA512

    8e89b9073be9ca219424af3465ef0a9e4624b2286f24ebdf66a9748ca7172c571aa1bca224b592631d57bfff749ee68abdf0bcbdc8f889af638f941db8439620

  • SSDEEP

    6144:sBGMef6TgRqnQUJlkmTsH3OJSrPrr35o2Jw4oDLNvJkNBm6Lrt0S4wP:25ef62qnQcTNJSrPf5jJgP5KBuw

Malware Config

Extracted

Family

cybergate

Version

v3.4.2.2

Botnet

remote

C2

nel1.no-ip.org:7600

Mutex

YRXF77L8WPI105

Attributes
  • enable_keylogger

    true

  • enable_message_box

    false

  • ftp_directory

    ./logs

  • ftp_interval

    30

  • injected_process

    explorer.exe

  • install_dir

    install

  • install_file

    sounds.exe

  • install_flag

    true

  • keylogger_enable_ftp

    false

  • message_box_caption

    Remote Administration anywhere in the world.

  • message_box_title

    CyberGate

  • 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
  • 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.

  • 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
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3048
      • C:\Users\Admin\AppData\Local\Temp\d038b9b1e94f9fd687563b7d301632936af4cc67b3e5e8808263dc94dabb0fab.exe
        "C:\Users\Admin\AppData\Local\Temp\d038b9b1e94f9fd687563b7d301632936af4cc67b3e5e8808263dc94dabb0fab.exe"
        2⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4344
        • C:\Users\Admin\AppData\Local\Temp\d038b9b1e94f9fd687563b7d301632936af4cc67b3e5e8808263dc94dabb0fab.exe
          "C:\Users\Admin\AppData\Local\Temp\d038b9b1e94f9fd687563b7d301632936af4cc67b3e5e8808263dc94dabb0fab.exe"
          3⤵
          • Adds policy Run key to start application
          • Modifies Installed Components in the registry
          • Checks computer location settings
          • Adds Run key to start application
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of WriteProcessMemory
          PID:1244
          • C:\Windows\SysWOW64\explorer.exe
            explorer.exe
            4⤵
            • Modifies Installed Components in the registry
            PID:1384
          • C:\Users\Admin\AppData\Local\Temp\d038b9b1e94f9fd687563b7d301632936af4cc67b3e5e8808263dc94dabb0fab.exe
            "C:\Users\Admin\AppData\Local\Temp\d038b9b1e94f9fd687563b7d301632936af4cc67b3e5e8808263dc94dabb0fab.exe"
            4⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:2124
          • C:\directory\MS Sounds\install\sounds.exe
            "C:\directory\MS Sounds\install\sounds.exe"
            4⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:1776
            • C:\directory\MS Sounds\install\sounds.exe
              "C:\directory\MS Sounds\install\sounds.exe"
              5⤵
              • Executes dropped EXE
              PID:3356

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      234KB

      MD5

      1a8c69b909baba7c2c730367e0f0bcd0

      SHA1

      5df02a300c4172f41a87b237f8cb2acbfa669baa

      SHA256

      c2ff73b573587abfe79360a3f795b916d93d41cec32dd2713464f55659bce37f

      SHA512

      13bba5642dfa33878535db01e926779a8892c4b82f56aa4f6bf50427d5849b1603a7680dcd8bfa47560fec56b6e3d7199a515ee34584246c34962110c2c56298

    • C:\directory\MS Sounds\install\sounds.exe

      Filesize

      416KB

      MD5

      7657537c0a4c38443aa0363deabe29b0

      SHA1

      08aa2b9434a93086f30c6adff40a2fe7de95a14a

      SHA256

      d038b9b1e94f9fd687563b7d301632936af4cc67b3e5e8808263dc94dabb0fab

      SHA512

      8e89b9073be9ca219424af3465ef0a9e4624b2286f24ebdf66a9748ca7172c571aa1bca224b592631d57bfff749ee68abdf0bcbdc8f889af638f941db8439620

    • C:\directory\MS Sounds\install\sounds.exe

      Filesize

      416KB

      MD5

      7657537c0a4c38443aa0363deabe29b0

      SHA1

      08aa2b9434a93086f30c6adff40a2fe7de95a14a

      SHA256

      d038b9b1e94f9fd687563b7d301632936af4cc67b3e5e8808263dc94dabb0fab

      SHA512

      8e89b9073be9ca219424af3465ef0a9e4624b2286f24ebdf66a9748ca7172c571aa1bca224b592631d57bfff749ee68abdf0bcbdc8f889af638f941db8439620

    • \??\c:\directory\MS Sounds\install\sounds.exe

      Filesize

      416KB

      MD5

      7657537c0a4c38443aa0363deabe29b0

      SHA1

      08aa2b9434a93086f30c6adff40a2fe7de95a14a

      SHA256

      d038b9b1e94f9fd687563b7d301632936af4cc67b3e5e8808263dc94dabb0fab

      SHA512

      8e89b9073be9ca219424af3465ef0a9e4624b2286f24ebdf66a9748ca7172c571aa1bca224b592631d57bfff749ee68abdf0bcbdc8f889af638f941db8439620

    • memory/1244-139-0x0000000000400000-0x000000000044B000-memory.dmp

      Filesize

      300KB

    • memory/1244-135-0x0000000000400000-0x000000000044B000-memory.dmp

      Filesize

      300KB

    • memory/1244-162-0x0000000000400000-0x000000000044B000-memory.dmp

      Filesize

      300KB

    • memory/1244-137-0x0000000000400000-0x000000000044B000-memory.dmp

      Filesize

      300KB

    • memory/1244-141-0x0000000010410000-0x0000000010480000-memory.dmp

      Filesize

      448KB

    • memory/1244-155-0x00000000104F0000-0x0000000010560000-memory.dmp

      Filesize

      448KB

    • memory/1244-146-0x0000000010480000-0x00000000104F0000-memory.dmp

      Filesize

      448KB

    • memory/1244-136-0x0000000000400000-0x000000000044B000-memory.dmp

      Filesize

      300KB

    • memory/1384-150-0x0000000010480000-0x00000000104F0000-memory.dmp

      Filesize

      448KB

    • memory/1384-149-0x0000000010480000-0x00000000104F0000-memory.dmp

      Filesize

      448KB

    • memory/1384-172-0x0000000010480000-0x00000000104F0000-memory.dmp

      Filesize

      448KB

    • memory/1776-163-0x00000000734B0000-0x0000000073A61000-memory.dmp

      Filesize

      5.7MB

    • memory/1776-169-0x00000000734B0000-0x0000000073A61000-memory.dmp

      Filesize

      5.7MB

    • memory/2124-158-0x00000000104F0000-0x0000000010560000-memory.dmp

      Filesize

      448KB

    • memory/2124-159-0x00000000104F0000-0x0000000010560000-memory.dmp

      Filesize

      448KB

    • memory/2124-173-0x00000000104F0000-0x0000000010560000-memory.dmp

      Filesize

      448KB

    • memory/3356-170-0x0000000000400000-0x000000000044B000-memory.dmp

      Filesize

      300KB

    • memory/3356-171-0x0000000000400000-0x000000000044B000-memory.dmp

      Filesize

      300KB

    • memory/4344-133-0x00000000752E0000-0x0000000075891000-memory.dmp

      Filesize

      5.7MB

    • memory/4344-132-0x00000000752E0000-0x0000000075891000-memory.dmp

      Filesize

      5.7MB

    • memory/4344-138-0x00000000752E0000-0x0000000075891000-memory.dmp

      Filesize

      5.7MB