Analysis

  • max time kernel
    189s
  • max time network
    189s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 16:51

General

  • Target

    a519e95d0b6ec5d3af802ac08318f7953b41057ece5804a06f0c388b5ba26391.exe

  • Size

    272KB

  • MD5

    55b1779ce2eb14cc41d1f13454b2bbe9

  • SHA1

    579629d210e9246ed8dd6cfe22db2eb258ecf471

  • SHA256

    a519e95d0b6ec5d3af802ac08318f7953b41057ece5804a06f0c388b5ba26391

  • SHA512

    44e7259aa23618ff5318cb6a520df6ec4976b1bd86a2eadcea33b703abf80dd5b9266af139138e73c7228d4a474ce1e2f9ac9683efc7b5657d391e6cad791fb2

  • SSDEEP

    6144:zk4qm9Myqn2Y52IuXK8ZjUcBAtECiNkZm4HPU7axjNcBE7B1GqL:I91nv52r9txkc8+Q2O7dL

Malware Config

Extracted

Family

cybergate

Version

2.6

Botnet

deneme

C2

onuroymen.no-ip.org:81

Mutex

***MUTEX***

Attributes
  • enable_keylogger

    true

  • enable_message_box

    false

  • ftp_directory

    ./logs/

  • ftp_interval

    30

  • injected_process

    explorer.exe

  • install_dir

    install

  • install_file

    svchost.exe

  • install_flag

    true

  • keylogger_enable_ftp

    false

  • message_box_caption

    texto da mensagem

  • message_box_title

    título da mensagem

  • password

    1111

  • 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 16 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
  • 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.

  • Program crash 1 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 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:3080
      • C:\Users\Admin\AppData\Local\Temp\a519e95d0b6ec5d3af802ac08318f7953b41057ece5804a06f0c388b5ba26391.exe
        "C:\Users\Admin\AppData\Local\Temp\a519e95d0b6ec5d3af802ac08318f7953b41057ece5804a06f0c388b5ba26391.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:624
        • C:\Windows\SysWOW64\explorer.exe
          explorer.exe
          3⤵
          • Modifies Installed Components in the registry
          PID:1504
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe"
          3⤵
            PID:4264
          • C:\Users\Admin\AppData\Local\Temp\a519e95d0b6ec5d3af802ac08318f7953b41057ece5804a06f0c388b5ba26391.exe
            "C:\Users\Admin\AppData\Local\Temp\a519e95d0b6ec5d3af802ac08318f7953b41057ece5804a06f0c388b5ba26391.exe"
            3⤵
            • Checks computer location settings
            • Drops file in System32 directory
            • Modifies registry class
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of AdjustPrivilegeToken
            PID:2468
            • C:\Windows\SysWOW64\install\svchost.exe
              "C:\Windows\system32\install\svchost.exe"
              4⤵
              • Executes dropped EXE
              PID:4540
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 4540 -s 572
                5⤵
                • Program crash
                PID:5096
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4540 -ip 4540
        1⤵
          PID:4940

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          229KB

          MD5

          b28f3c35670f3a56eec1e0689bd0aff7

          SHA1

          a4fb154fcfe282d92dc8837f3c5951fb43ef57f7

          SHA256

          0e9b4ed0f62805f8e539f3416208a2d6c45c502fdf8099c10c2a4ef3b07b9b6a

          SHA512

          3624c72206de28db76f34ff14f51250a8f835b0b4d23b97cd7e17b884a802c9401349baa8ba674a15b10959ca720488418ad903f742bafc101a2167c537af8d9

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

          Filesize

          272KB

          MD5

          55b1779ce2eb14cc41d1f13454b2bbe9

          SHA1

          579629d210e9246ed8dd6cfe22db2eb258ecf471

          SHA256

          a519e95d0b6ec5d3af802ac08318f7953b41057ece5804a06f0c388b5ba26391

          SHA512

          44e7259aa23618ff5318cb6a520df6ec4976b1bd86a2eadcea33b703abf80dd5b9266af139138e73c7228d4a474ce1e2f9ac9683efc7b5657d391e6cad791fb2

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

          Filesize

          272KB

          MD5

          55b1779ce2eb14cc41d1f13454b2bbe9

          SHA1

          579629d210e9246ed8dd6cfe22db2eb258ecf471

          SHA256

          a519e95d0b6ec5d3af802ac08318f7953b41057ece5804a06f0c388b5ba26391

          SHA512

          44e7259aa23618ff5318cb6a520df6ec4976b1bd86a2eadcea33b703abf80dd5b9266af139138e73c7228d4a474ce1e2f9ac9683efc7b5657d391e6cad791fb2

        • memory/624-155-0x0000000024160000-0x00000000241C2000-memory.dmp

          Filesize

          392KB

        • memory/624-137-0x0000000024010000-0x0000000024072000-memory.dmp

          Filesize

          392KB

        • memory/624-142-0x0000000024080000-0x00000000240E2000-memory.dmp

          Filesize

          392KB

        • memory/624-159-0x0000000000400000-0x0000000000455000-memory.dmp

          Filesize

          340KB

        • memory/624-135-0x0000000000400000-0x0000000000455000-memory.dmp

          Filesize

          340KB

        • memory/624-150-0x00000000240F0000-0x0000000024152000-memory.dmp

          Filesize

          392KB

        • memory/1504-146-0x0000000024080000-0x00000000240E2000-memory.dmp

          Filesize

          392KB

        • memory/1504-145-0x0000000024080000-0x00000000240E2000-memory.dmp

          Filesize

          392KB

        • memory/1504-162-0x0000000024080000-0x00000000240E2000-memory.dmp

          Filesize

          392KB

        • memory/1504-141-0x0000000000000000-mapping.dmp

        • memory/2468-154-0x0000000000000000-mapping.dmp

        • memory/2468-158-0x0000000024160000-0x00000000241C2000-memory.dmp

          Filesize

          392KB

        • memory/2468-160-0x0000000000400000-0x0000000000455000-memory.dmp

          Filesize

          340KB

        • memory/2468-161-0x0000000024160000-0x00000000241C2000-memory.dmp

          Filesize

          392KB

        • memory/2468-163-0x0000000024160000-0x00000000241C2000-memory.dmp

          Filesize

          392KB

        • memory/4540-164-0x0000000000000000-mapping.dmp

        • memory/4540-166-0x0000000000400000-0x0000000000455000-memory.dmp

          Filesize

          340KB