Analysis

  • max time kernel
    152s
  • max time network
    159s
  • 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, 02:33

General

  • Target

    5431187dc44b05fd42ef9eb30c8704bc42e076de2d92991b1a1d320ae0e14d73.exe

  • Size

    652KB

  • MD5

    4b328465fa5c96d11bef876bcf9fc55f

  • SHA1

    f5b9d8710b6fc5490872019cb32666ebbf64c64d

  • SHA256

    5431187dc44b05fd42ef9eb30c8704bc42e076de2d92991b1a1d320ae0e14d73

  • SHA512

    9ffd12438c05b2340dca5e837dce3feb3e0265e2ce09c964f7a5c28158f6ee555040bc586ef0bbab25beb1aad6413b506d4dd445013af730ec1ade7127d63d11

  • SSDEEP

    12288:pb6lQ4dLOSwCDfJqlE6uGiGSAlVLuBRzXA2oAMHVB66EYAUTS9D/ksSzQR2:xWLtwCc26uGi2VCHXSBzTaDMsAQR2

Malware Config

Extracted

Family

cybergate

Version

2.7 Final

Botnet

vítima

C2

127.0.0.1:1000

glider.no-ip.biz:1000

Mutex

***MUTEX***

Attributes
  • enable_keylogger

    true

  • enable_message_box

    false

  • ftp_directory

    ./logs/

  • ftp_interval

    30

  • injected_process

    explorer.exe

  • install_dir

    Svchost

  • install_file

    server.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 1 IoCs
  • Modifies Installed Components in the registry 2 TTPs 4 IoCs
  • 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: 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:3060
      • C:\Users\Admin\AppData\Local\Temp\5431187dc44b05fd42ef9eb30c8704bc42e076de2d92991b1a1d320ae0e14d73.exe
        "C:\Users\Admin\AppData\Local\Temp\5431187dc44b05fd42ef9eb30c8704bc42e076de2d92991b1a1d320ae0e14d73.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 use of FindShellTrayWindow
        • Suspicious use of WriteProcessMemory
        PID:4188
        • C:\Windows\SysWOW64\explorer.exe
          explorer.exe
          3⤵
          • Modifies Installed Components in the registry
          PID:2492
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe"
          3⤵
            PID:2696
          • C:\Users\Admin\AppData\Local\Temp\5431187dc44b05fd42ef9eb30c8704bc42e076de2d92991b1a1d320ae0e14d73.exe
            "C:\Users\Admin\AppData\Local\Temp\5431187dc44b05fd42ef9eb30c8704bc42e076de2d92991b1a1d320ae0e14d73.exe"
            3⤵
            • Checks computer location settings
            • Drops file in System32 directory
            • Modifies registry class
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of AdjustPrivilegeToken
            PID:1648
            • C:\Windows\SysWOW64\Svchost\server.exe
              "C:\Windows\system32\Svchost\server.exe"
              4⤵
              • Executes dropped EXE
              PID:4720
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 4720 -s 220
                5⤵
                • Program crash
                PID:4232
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4188 -ip 4188
        1⤵
          PID:3620
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 4720 -ip 4720
          1⤵
            PID:4256

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

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

            Filesize

            588KB

            MD5

            f8cdfb16abb7b6f3bd9888de952e74f7

            SHA1

            4399d35fb9ae3025683824c8dd02861b63779743

            SHA256

            784019a12c3fd74d9b0224e916582ec91281a93e2487de61e76505070dd81cf0

            SHA512

            79e333201b1bed9c1c07e258ba26a3d4278379d65956d238b5f3174afd64bc5d8b37023b1246b08d4fc4beffc4b59b8a933861bb7c1311d9f8ca3969bb2dca04

          • C:\Windows\SysWOW64\Svchost\server.exe

            Filesize

            652KB

            MD5

            4b328465fa5c96d11bef876bcf9fc55f

            SHA1

            f5b9d8710b6fc5490872019cb32666ebbf64c64d

            SHA256

            5431187dc44b05fd42ef9eb30c8704bc42e076de2d92991b1a1d320ae0e14d73

            SHA512

            9ffd12438c05b2340dca5e837dce3feb3e0265e2ce09c964f7a5c28158f6ee555040bc586ef0bbab25beb1aad6413b506d4dd445013af730ec1ade7127d63d11

          • C:\Windows\SysWOW64\Svchost\server.exe

            Filesize

            652KB

            MD5

            4b328465fa5c96d11bef876bcf9fc55f

            SHA1

            f5b9d8710b6fc5490872019cb32666ebbf64c64d

            SHA256

            5431187dc44b05fd42ef9eb30c8704bc42e076de2d92991b1a1d320ae0e14d73

            SHA512

            9ffd12438c05b2340dca5e837dce3feb3e0265e2ce09c964f7a5c28158f6ee555040bc586ef0bbab25beb1aad6413b506d4dd445013af730ec1ade7127d63d11

          • memory/1648-168-0x0000000010530000-0x000000001058C000-memory.dmp

            Filesize

            368KB

          • memory/1648-173-0x0000000010530000-0x000000001058C000-memory.dmp

            Filesize

            368KB

          • memory/1648-167-0x0000000000400000-0x00000000004AC000-memory.dmp

            Filesize

            688KB

          • memory/2492-148-0x0000000010470000-0x00000000104CC000-memory.dmp

            Filesize

            368KB

          • memory/2492-172-0x0000000010470000-0x00000000104CC000-memory.dmp

            Filesize

            368KB

          • memory/4188-166-0x0000000000400000-0x00000000004AC000-memory.dmp

            Filesize

            688KB

          • memory/4188-160-0x0000000010530000-0x000000001058C000-memory.dmp

            Filesize

            368KB

          • memory/4188-132-0x0000000000400000-0x00000000004AC000-memory.dmp

            Filesize

            688KB

          • memory/4188-134-0x0000000010410000-0x000000001046C000-memory.dmp

            Filesize

            368KB

          • memory/4188-152-0x00000000104D0000-0x000000001052C000-memory.dmp

            Filesize

            368KB

          • memory/4188-142-0x0000000010470000-0x00000000104CC000-memory.dmp

            Filesize

            368KB

          • memory/4720-171-0x0000000000400000-0x00000000004AC000-memory.dmp

            Filesize

            688KB