Analysis

  • max time kernel
    153s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/10/2022, 08:02

General

  • Target

    2e5b2cf7c8a4907cb364c686b07ef31d7c3458e20ed7c700e08d503d3c41a8fe.exe

  • Size

    904KB

  • MD5

    49dceb9bc4f10b3492d28554a6cc747f

  • SHA1

    0052331ebaf4abc2373597faadd0e4818f3606af

  • SHA256

    2e5b2cf7c8a4907cb364c686b07ef31d7c3458e20ed7c700e08d503d3c41a8fe

  • SHA512

    e1cb037eccbb09b8a6b5bf9d1d578d5b06f3911e5f3e05c539d7da8e1e063443d252ba8ece2ae4265d9e7dae532fffcc6632c60d611dd5172f2b75bc3fb8aad5

  • SSDEEP

    24576:cwQNiyIakELjXn8d26JcJDY3udp/RrhvoMZGf2:clML8Ty26JcJsEvV/Gf2

Malware Config

Extracted

Family

cybergate

Version

2.6

Botnet

Server

C2

adsll.no-ip.org:81

ncn.dyndns.tv:82

Mutex

***MUTEX***

Attributes
  • enable_keylogger

    true

  • enable_message_box

    false

  • ftp_directory

    ./logs/

  • ftp_interval

    30

  • injected_process

    explorer.exe

  • install_dir

    Installer

  • install_file

    taskmgr.exe

  • install_flag

    true

  • keylogger_enable_ftp

    false

  • message_box_caption

    texto da mensagem

  • message_box_title

    título da mensagem

  • password

    abcd1234

  • 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 8 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 5 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 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.

  • Program crash 1 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:1396
      • C:\Users\Admin\AppData\Local\Temp\2e5b2cf7c8a4907cb364c686b07ef31d7c3458e20ed7c700e08d503d3c41a8fe.exe
        "C:\Users\Admin\AppData\Local\Temp\2e5b2cf7c8a4907cb364c686b07ef31d7c3458e20ed7c700e08d503d3c41a8fe.exe"
        2⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:4892
        • C:\Users\Admin\AppData\Local\Temp\2e5b2cf7c8a4907cb364c686b07ef31d7c3458e20ed7c700e08d503d3c41a8fe.EXE
          "C:\Users\Admin\AppData\Local\Temp\2e5b2cf7c8a4907cb364c686b07ef31d7c3458e20ed7c700e08d503d3c41a8fe.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 use of FindShellTrayWindow
          • Suspicious use of WriteProcessMemory
          PID:4460
          • C:\Windows\SysWOW64\explorer.exe
            explorer.exe
            4⤵
            • Modifies Installed Components in the registry
            PID:2188
          • C:\Users\Admin\AppData\Local\Temp\2e5b2cf7c8a4907cb364c686b07ef31d7c3458e20ed7c700e08d503d3c41a8fe.EXE
            "C:\Users\Admin\AppData\Local\Temp\2e5b2cf7c8a4907cb364c686b07ef31d7c3458e20ed7c700e08d503d3c41a8fe.EXE"
            4⤵
            • Checks computer location settings
            • Drops file in System32 directory
            • Modifies registry class
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of SetWindowsHookEx
            PID:1388
            • C:\Windows\SysWOW64\Installer\taskmgr.exe
              "C:\Windows\system32\Installer\taskmgr.exe"
              5⤵
              • Executes dropped EXE
              • Drops file in System32 directory
              • Suspicious use of NtSetInformationThreadHideFromDebugger
              • Suspicious use of SetThreadContext
              • Suspicious use of SetWindowsHookEx
              PID:3480
              • C:\Windows\SysWOW64\Installer\taskmgr.EXE
                "C:\Windows\SysWOW64\Installer\taskmgr.EXE"
                6⤵
                • Executes dropped EXE
                PID:2276
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 2276 -s 564
                  7⤵
                  • Program crash
                  PID:2596
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 2276 -ip 2276
      1⤵
        PID:4516

      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

              033df6795e279c527784717204112afe

              SHA1

              db981763475890e8f5f21ae72be7e4c20384ac86

              SHA256

              6938dd59f79bc92bcf3e8643e83e354c31e35547f19e826d0af72637cdd8ee5d

              SHA512

              a5a82c0713899aa9dd7346c77d6dcaaef42377e410ddaa95ddde81144e3fdeee9db316bd4b1147e0c26d9e8b25cf7e9c1093f28d9ee5c083a68d0ec4b3724d50

            • C:\Windows\SysWOW64\Installer\taskmgr.exe

              Filesize

              904KB

              MD5

              49dceb9bc4f10b3492d28554a6cc747f

              SHA1

              0052331ebaf4abc2373597faadd0e4818f3606af

              SHA256

              2e5b2cf7c8a4907cb364c686b07ef31d7c3458e20ed7c700e08d503d3c41a8fe

              SHA512

              e1cb037eccbb09b8a6b5bf9d1d578d5b06f3911e5f3e05c539d7da8e1e063443d252ba8ece2ae4265d9e7dae532fffcc6632c60d611dd5172f2b75bc3fb8aad5

            • C:\Windows\SysWOW64\Installer\taskmgr.exe

              Filesize

              904KB

              MD5

              49dceb9bc4f10b3492d28554a6cc747f

              SHA1

              0052331ebaf4abc2373597faadd0e4818f3606af

              SHA256

              2e5b2cf7c8a4907cb364c686b07ef31d7c3458e20ed7c700e08d503d3c41a8fe

              SHA512

              e1cb037eccbb09b8a6b5bf9d1d578d5b06f3911e5f3e05c539d7da8e1e063443d252ba8ece2ae4265d9e7dae532fffcc6632c60d611dd5172f2b75bc3fb8aad5

            • C:\Windows\SysWOW64\Installer\taskmgr.exe

              Filesize

              904KB

              MD5

              49dceb9bc4f10b3492d28554a6cc747f

              SHA1

              0052331ebaf4abc2373597faadd0e4818f3606af

              SHA256

              2e5b2cf7c8a4907cb364c686b07ef31d7c3458e20ed7c700e08d503d3c41a8fe

              SHA512

              e1cb037eccbb09b8a6b5bf9d1d578d5b06f3911e5f3e05c539d7da8e1e063443d252ba8ece2ae4265d9e7dae532fffcc6632c60d611dd5172f2b75bc3fb8aad5

            • \??\c:\users\admin\appdata\local\temp\EF67EAF9

              Filesize

              14B

              MD5

              2589ff665bc52e79071ff0f5688bc553

              SHA1

              d3411b3103044bf36ca303a703153d675e62edc0

              SHA256

              d4351692cd166f4af4f73e76b895a6aedb096ddbac0cf80835bd16da4039a314

              SHA512

              41693f1b24d9e4aa09a920ccd910d70e24e14665c3d1127c0dbb345d25ac3b96d2164437555f2b66151d0c7ce2873c61898d173c65135bdff9e813223d9b0fec

            • memory/1388-161-0x00000000240F0000-0x0000000024152000-memory.dmp

              Filesize

              392KB

            • memory/1388-163-0x00000000240F0000-0x0000000024152000-memory.dmp

              Filesize

              392KB

            • memory/1388-162-0x0000000000400000-0x00000000007A5000-memory.dmp

              Filesize

              3.6MB

            • memory/1388-177-0x00000000240F0000-0x0000000024152000-memory.dmp

              Filesize

              392KB

            • memory/2188-151-0x0000000024080000-0x00000000240E2000-memory.dmp

              Filesize

              392KB

            • memory/2188-154-0x0000000024080000-0x00000000240E2000-memory.dmp

              Filesize

              392KB

            • memory/2276-174-0x0000000000400000-0x0000000000450000-memory.dmp

              Filesize

              320KB

            • memory/2276-176-0x0000000000400000-0x0000000000450000-memory.dmp

              Filesize

              320KB

            • memory/3480-166-0x0000000000400000-0x00000000007A5000-memory.dmp

              Filesize

              3.6MB

            • memory/3480-175-0x0000000000400000-0x00000000007A5000-memory.dmp

              Filesize

              3.6MB

            • memory/4460-143-0x0000000024010000-0x0000000024072000-memory.dmp

              Filesize

              392KB

            • memory/4460-157-0x00000000240F0000-0x0000000024152000-memory.dmp

              Filesize

              392KB

            • memory/4460-141-0x0000000000400000-0x0000000000450000-memory.dmp

              Filesize

              320KB

            • memory/4460-148-0x0000000024080000-0x00000000240E2000-memory.dmp

              Filesize

              392KB

            • memory/4460-139-0x0000000000400000-0x0000000000450000-memory.dmp

              Filesize

              320KB

            • memory/4460-138-0x0000000000400000-0x0000000000450000-memory.dmp

              Filesize

              320KB

            • memory/4460-160-0x0000000000400000-0x0000000000450000-memory.dmp

              Filesize

              320KB

            • memory/4460-137-0x0000000000400000-0x0000000000450000-memory.dmp

              Filesize

              320KB

            • memory/4892-132-0x0000000000400000-0x00000000007A5000-memory.dmp

              Filesize

              3.6MB

            • memory/4892-140-0x0000000000400000-0x00000000007A5000-memory.dmp

              Filesize

              3.6MB

            • memory/4892-133-0x0000000000400000-0x00000000007A5000-memory.dmp

              Filesize

              3.6MB