Analysis

  • max time kernel
    152s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/11/2022, 10:48

General

  • Target

    abb0a7bf9f78e22d3885da9429d8525665a22a599f981b8e83fa71a339a29331.exe

  • Size

    276KB

  • MD5

    3ff592435d42547ace5b645664b0f3f1

  • SHA1

    a75e65012a557794d18edef70eecfbd095129fd3

  • SHA256

    abb0a7bf9f78e22d3885da9429d8525665a22a599f981b8e83fa71a339a29331

  • SHA512

    d148609340ea502674ed076638e1fd847fb98605b1ccdaee7e3220bd31804554429876ef998b7ce0cb0a14925be502cbbe304aa525684f6e1eb88b4032c81d21

  • SSDEEP

    6144:bRjC+DsxZZQttyCVxaWYSda4bHPS9x6qr6jDRPWHz6kp62kVz:1jJeAtpVxag1bvgx6NdC62kVz

Malware Config

Extracted

Family

cybergate

Version

v1.03.0

Botnet

freeze

C2

infryze.no-ip.biz:81

Mutex

5706OOX82VD8DG

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

    ownage

  • regkey_hklm

    HKLM

Signatures

  • CyberGate, Rebhip

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

  • Executes dropped EXE 2 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.

  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 2 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:2132
      • C:\Users\Admin\AppData\Local\Temp\abb0a7bf9f78e22d3885da9429d8525665a22a599f981b8e83fa71a339a29331.exe
        "C:\Users\Admin\AppData\Local\Temp\abb0a7bf9f78e22d3885da9429d8525665a22a599f981b8e83fa71a339a29331.exe"
        2⤵
        • Modifies Installed Components in the registry
        • Checks computer location settings
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of WriteProcessMemory
        PID:1436
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe"
          3⤵
            PID:2548
          • C:\Users\Admin\AppData\Local\Temp\abb0a7bf9f78e22d3885da9429d8525665a22a599f981b8e83fa71a339a29331.exe
            "C:\Users\Admin\AppData\Local\Temp\abb0a7bf9f78e22d3885da9429d8525665a22a599f981b8e83fa71a339a29331.exe"
            3⤵
            • Checks computer location settings
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of AdjustPrivilegeToken
            PID:2684
            • C:\directory\CyberGate\install\server.exe
              "C:\directory\CyberGate\install\server.exe"
              4⤵
              • Executes dropped EXE
              PID:4228
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 4228 -s 576
                5⤵
                • Program crash
                PID:1064
          • C:\directory\CyberGate\install\server.exe
            "C:\directory\CyberGate\install\server.exe"
            3⤵
            • Executes dropped EXE
            PID:4212
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 4212 -s 564
              4⤵
              • Program crash
              PID:1072
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4212 -ip 4212
        1⤵
          PID:3820
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4228 -ip 4228
          1⤵
            PID:1276

          Network

                MITRE ATT&CK Enterprise v6

                Replay Monitor

                Loading Replay Monitor...

                Downloads

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

                  Filesize

                  221KB

                  MD5

                  c89322f9d2acfe9da26a66ae000bbe5a

                  SHA1

                  360210356f85b5843baa4e784e48eb4a02b767e6

                  SHA256

                  e24e9ee34ea3ab19a740536c3e4b8e832ed5badae621a094117836d255263a3c

                  SHA512

                  f0680d90b9c01a6a37f93ed6c92b675173b95d47416ca1432ebab47b958122d2289cf328b53dad974d45efc1f301429a0eee8cd656b4f390b78276c7b387dd0e

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

                  Filesize

                  276KB

                  MD5

                  3ff592435d42547ace5b645664b0f3f1

                  SHA1

                  a75e65012a557794d18edef70eecfbd095129fd3

                  SHA256

                  abb0a7bf9f78e22d3885da9429d8525665a22a599f981b8e83fa71a339a29331

                  SHA512

                  d148609340ea502674ed076638e1fd847fb98605b1ccdaee7e3220bd31804554429876ef998b7ce0cb0a14925be502cbbe304aa525684f6e1eb88b4032c81d21

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

                  Filesize

                  276KB

                  MD5

                  3ff592435d42547ace5b645664b0f3f1

                  SHA1

                  a75e65012a557794d18edef70eecfbd095129fd3

                  SHA256

                  abb0a7bf9f78e22d3885da9429d8525665a22a599f981b8e83fa71a339a29331

                  SHA512

                  d148609340ea502674ed076638e1fd847fb98605b1ccdaee7e3220bd31804554429876ef998b7ce0cb0a14925be502cbbe304aa525684f6e1eb88b4032c81d21

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

                  Filesize

                  276KB

                  MD5

                  3ff592435d42547ace5b645664b0f3f1

                  SHA1

                  a75e65012a557794d18edef70eecfbd095129fd3

                  SHA256

                  abb0a7bf9f78e22d3885da9429d8525665a22a599f981b8e83fa71a339a29331

                  SHA512

                  d148609340ea502674ed076638e1fd847fb98605b1ccdaee7e3220bd31804554429876ef998b7ce0cb0a14925be502cbbe304aa525684f6e1eb88b4032c81d21

                • memory/1436-133-0x0000000024010000-0x0000000024071000-memory.dmp

                  Filesize

                  388KB

                • memory/1436-138-0x0000000024080000-0x00000000240E1000-memory.dmp

                  Filesize

                  388KB

                • memory/2684-141-0x0000000024080000-0x00000000240E1000-memory.dmp

                  Filesize

                  388KB

                • memory/2684-148-0x0000000024080000-0x00000000240E1000-memory.dmp

                  Filesize

                  388KB

                • memory/2684-149-0x0000000024080000-0x00000000240E1000-memory.dmp

                  Filesize

                  388KB