Analysis

  • max time kernel
    167s
  • max time network
    186s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    24-11-2022 06:12

General

  • Target

    d996440977f4174edfc6f670330ecbb4101863c2c4135a6c69e4d2dc55c58fb4.exe

  • Size

    1.1MB

  • MD5

    32c50913f5bad6c1bf3e0472dc6835a7

  • SHA1

    f0f78ff7461068e336c421e59134bfb9cd866b2a

  • SHA256

    d996440977f4174edfc6f670330ecbb4101863c2c4135a6c69e4d2dc55c58fb4

  • SHA512

    29733e8f1e3b8ad6a0ea662668c88f626ca7aae4138ed4c2e33786ef1d1dc8bb3b69e5f666a4f09a76f8c629a7d55f853f788b3f6b6d8d1993ff63961e1fd085

  • SSDEEP

    24576:9x94aSqD+WRvWjGZXUYPu2tDrbbtJ5M/A2CJ:9xSxgB6oEYmMdXM/AfJ

Malware Config

Extracted

Family

cybergate

Version

v3.4.2.2

Botnet

1st

C2

58.138.194.52:80

Mutex

KA3TAD87D550W7

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

    cybergate

  • regkey_hkcu

    HKCU

  • regkey_hklm

    HKLM

Signatures

  • CyberGate, Rebhip

    CyberGate is a lightweight remote administration tool with a wide array of functionalities.

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Adds policy Run key to start application 2 TTPs 4 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.

  • Identifies Wine through registry keys 2 TTPs 1 IoCs

    Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

  • Adds Run key to start application 2 TTPs 4 IoCs
  • Drops file in System32 directory 4 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:1284
      • C:\Users\Admin\AppData\Local\Temp\d996440977f4174edfc6f670330ecbb4101863c2c4135a6c69e4d2dc55c58fb4.exe
        "C:\Users\Admin\AppData\Local\Temp\d996440977f4174edfc6f670330ecbb4101863c2c4135a6c69e4d2dc55c58fb4.exe"
        2⤵
        • Identifies VirtualBox via ACPI registry values (likely anti-VM)
        • Identifies Wine through registry keys
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2028
        • C:\Windows\SysWOW64\cmd.exe
          /c net stop MpsSvc
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:2032
          • C:\Windows\SysWOW64\net.exe
            net stop MpsSvc
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:1532
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop MpsSvc
              5⤵
                PID:276
          • C:\Users\Admin\AppData\Local\Temp\d996440977f4174edfc6f670330ecbb4101863c2c4135a6c69e4d2dc55c58fb4.exe
            C:\Users\Admin\AppData\Local\Temp\d996440977f4174edfc6f670330ecbb4101863c2c4135a6c69e4d2dc55c58fb4.exe
            3⤵
            • 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:556
            • C:\Windows\SysWOW64\explorer.exe
              explorer.exe
              4⤵
              • Drops file in System32 directory
              • Suspicious use of AdjustPrivilegeToken
              PID:1644

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      Persistence

      Registry Run Keys / Startup Folder

      3
      T1060

      Defense Evasion

      Virtualization/Sandbox Evasion

      2
      T1497

      Modify Registry

      3
      T1112

      Discovery

      Query Registry

      2
      T1012

      Virtualization/Sandbox Evasion

      2
      T1497

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        234KB

        MD5

        05fa080b61a4b7f3e71d0a88fdbe8324

        SHA1

        e8d1ed275674d8e4213237e063ccc137ed637062

        SHA256

        9055919330f096ad9db6497d8a4088bfe8acf00c639f401f3d72b6d109c75af7

        SHA512

        f06f9ef888fde67150d7323c11c2d5bc6cf28ca54b447dc84d9dcf6555e2f967d8143f0a564c5df0df880623b580b5b534b1d348a8ea048110bfda9a3db5f441

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

        1.1MB

        MD5

        32c50913f5bad6c1bf3e0472dc6835a7

        SHA1

        f0f78ff7461068e336c421e59134bfb9cd866b2a

        SHA256

        d996440977f4174edfc6f670330ecbb4101863c2c4135a6c69e4d2dc55c58fb4

        SHA512

        29733e8f1e3b8ad6a0ea662668c88f626ca7aae4138ed4c2e33786ef1d1dc8bb3b69e5f666a4f09a76f8c629a7d55f853f788b3f6b6d8d1993ff63961e1fd085

      • memory/276-74-0x0000000000000000-mapping.dmp
      • memory/556-87-0x0000000000400000-0x000000000044B000-memory.dmp
        Filesize

        300KB

      • memory/556-62-0x0000000000400000-0x000000000044B000-memory.dmp
        Filesize

        300KB

      • memory/556-58-0x0000000000400000-0x000000000044B000-memory.dmp
        Filesize

        300KB

      • memory/556-61-0x0000000000400000-0x000000000044B000-memory.dmp
        Filesize

        300KB

      • memory/556-97-0x0000000000400000-0x000000000044B000-memory.dmp
        Filesize

        300KB

      • memory/556-63-0x0000000000400000-0x000000000044B000-memory.dmp
        Filesize

        300KB

      • memory/556-64-0x0000000000400000-0x000000000044B000-memory.dmp
        Filesize

        300KB

      • memory/556-66-0x0000000000400000-0x000000000044B000-memory.dmp
        Filesize

        300KB

      • memory/556-67-0x0000000000409860-mapping.dmp
      • memory/556-68-0x0000000000400000-0x000000000044B000-memory.dmp
        Filesize

        300KB

      • memory/556-70-0x0000000000400000-0x000000000044B000-memory.dmp
        Filesize

        300KB

      • memory/556-76-0x0000000000400000-0x000000000044B000-memory.dmp
        Filesize

        300KB

      • memory/556-57-0x0000000000400000-0x000000000044B000-memory.dmp
        Filesize

        300KB

      • memory/556-88-0x0000000010480000-0x00000000104F0000-memory.dmp
        Filesize

        448KB

      • memory/556-60-0x0000000000400000-0x000000000044B000-memory.dmp
        Filesize

        300KB

      • memory/556-78-0x0000000010410000-0x0000000010480000-memory.dmp
        Filesize

        448KB

      • memory/1284-81-0x0000000010410000-0x0000000010480000-memory.dmp
        Filesize

        448KB

      • memory/1532-71-0x0000000000000000-mapping.dmp
      • memory/1644-93-0x0000000010480000-0x00000000104F0000-memory.dmp
        Filesize

        448KB

      • memory/1644-84-0x0000000000000000-mapping.dmp
      • memory/1644-86-0x00000000752D1000-0x00000000752D3000-memory.dmp
        Filesize

        8KB

      • memory/1644-96-0x0000000010480000-0x00000000104F0000-memory.dmp
        Filesize

        448KB

      • memory/1644-98-0x0000000010480000-0x00000000104F0000-memory.dmp
        Filesize

        448KB

      • memory/2028-72-0x0000000000400000-0x00000000005C7000-memory.dmp
        Filesize

        1.8MB

      • memory/2028-54-0x0000000000400000-0x00000000005C7000-memory.dmp
        Filesize

        1.8MB

      • memory/2028-55-0x00000000760B1000-0x00000000760B3000-memory.dmp
        Filesize

        8KB

      • memory/2028-73-0x0000000077C40000-0x0000000077DC0000-memory.dmp
        Filesize

        1.5MB

      • memory/2028-75-0x00000000003F0000-0x00000000003F4000-memory.dmp
        Filesize

        16KB

      • memory/2032-56-0x0000000000000000-mapping.dmp