Analysis

  • max time kernel
    153s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-09-2022 09:55

General

  • Target

    c1b815a14361033d47a2dae502ba7a320817cbae93c066cfc852703f2b7ff3d0.exe

  • Size

    384KB

  • MD5

    c865f50de1dab5a0154cec834db899a7

  • SHA1

    5d5948005b80448df4d06f1d6db05e1c82f95977

  • SHA256

    c1b815a14361033d47a2dae502ba7a320817cbae93c066cfc852703f2b7ff3d0

  • SHA512

    0dd2fd0d02376817f386ad19043f6cb27081a88eb14fc6f7abe537575dfb2c75893351b015ed0ec5c9bbcc48d599d9b53c5fa46981a33ba398afa8166fb93f49

  • SSDEEP

    6144:y+ItTqrdbTa+ckrqow7cOs3gfKskZyabt1IubmSpfQv0CEYf38pxXX9rOAYfU7ip:yTtMdfdrG7CvbtVpfZCODNOrfUtlC

Malware Config

Extracted

Family

cybergate

Version

v1.04.8

Botnet

hack

C2

sss.servepics.com:53320

127.0.0.1:81

Mutex

5807782VAJH01C

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

    1

  • 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
  • Modifies Installed Components in the registry 2 TTPs 4 IoCs
  • UPX packed file 9 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 3 IoCs
  • Drops file in System32 directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 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:760
      • C:\Users\Admin\AppData\Local\Temp\c1b815a14361033d47a2dae502ba7a320817cbae93c066cfc852703f2b7ff3d0.exe
        "C:\Users\Admin\AppData\Local\Temp\c1b815a14361033d47a2dae502ba7a320817cbae93c066cfc852703f2b7ff3d0.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:1484
        • C:\Windows\SysWOW64\explorer.exe
          explorer.exe
          3⤵
          • Adds policy Run key to start application
          • Modifies Installed Components in the registry
          PID:3724
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe"
          3⤵
            PID:4624
          • C:\Users\Admin\AppData\Local\Temp\c1b815a14361033d47a2dae502ba7a320817cbae93c066cfc852703f2b7ff3d0.exe
            "C:\Users\Admin\AppData\Local\Temp\c1b815a14361033d47a2dae502ba7a320817cbae93c066cfc852703f2b7ff3d0.exe"
            3⤵
            • Checks computer location settings
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of AdjustPrivilegeToken
            PID:3608
            • C:\Users\Admin\AppData\Local\Temp\c1b815a14361033d47a2dae502ba7a320817cbae93c066cfc852703f2b7ff3d0.exe
              "C:\Users\Admin\AppData\Local\Temp\c1b815a14361033d47a2dae502ba7a320817cbae93c066cfc852703f2b7ff3d0.exe"
              4⤵
                PID:2556
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 2556 -s 584
                  5⤵
                  • Program crash
                  PID:824
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 2556 -ip 2556
          1⤵
            PID:3260

          Network

          MITRE ATT&CK Matrix ATT&CK v6

          Persistence

          Registry Run Keys / Startup Folder

          3
          T1060

          Defense Evasion

          Modify Registry

          3
          T1112

          Discovery

          Query Registry

          1
          T1012

          System Information Discovery

          2
          T1082

          Replay Monitor

          Loading Replay Monitor...

          Downloads

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

            222KB

            MD5

            be4a35d7a1fd7e344495643f2d95ee2d

            SHA1

            433aaeda152a706ec99f39e85239c6b570bb5175

            SHA256

            485175dd908d3f3f19f4220e7fbc3258ecf2d0ece4db9fdd9a5b4bc3a4c6963d

            SHA512

            0200cc582ee02689c358a2768b394880d567d6e0b48be0bc464ca19bf02375937b86b2ef0a149b74cdc6eb7efc8e6beea7a9cec3a8d99881829dc21cda770735

          • memory/1484-159-0x0000000000400000-0x0000000000460000-memory.dmp
            Filesize

            384KB

          • memory/1484-135-0x00000000021E0000-0x0000000002219000-memory.dmp
            Filesize

            228KB

          • memory/1484-150-0x00000000104F0000-0x0000000010551000-memory.dmp
            Filesize

            388KB

          • memory/1484-136-0x0000000000400000-0x0000000000460000-memory.dmp
            Filesize

            384KB

          • memory/1484-138-0x0000000010410000-0x0000000010471000-memory.dmp
            Filesize

            388KB

          • memory/1484-161-0x00000000021E0000-0x0000000002219000-memory.dmp
            Filesize

            228KB

          • memory/1484-143-0x0000000010480000-0x00000000104E1000-memory.dmp
            Filesize

            388KB

          • memory/1484-132-0x0000000000400000-0x0000000000460000-memory.dmp
            Filesize

            384KB

          • memory/1484-155-0x0000000010560000-0x00000000105C1000-memory.dmp
            Filesize

            388KB

          • memory/1484-133-0x0000000000400000-0x0000000000460000-memory.dmp
            Filesize

            384KB

          • memory/1484-134-0x00000000004E0000-0x00000000004E4000-memory.dmp
            Filesize

            16KB

          • memory/2556-162-0x0000000000000000-mapping.dmp
          • memory/2556-163-0x0000000000400000-0x0000000000460000-memory.dmp
            Filesize

            384KB

          • memory/2556-164-0x0000000000400000-0x0000000000460000-memory.dmp
            Filesize

            384KB

          • memory/2556-165-0x0000000002090000-0x00000000020C9000-memory.dmp
            Filesize

            228KB

          • memory/3608-166-0x0000000010560000-0x00000000105C1000-memory.dmp
            Filesize

            388KB

          • memory/3608-158-0x0000000010560000-0x00000000105C1000-memory.dmp
            Filesize

            388KB

          • memory/3608-160-0x0000000010560000-0x00000000105C1000-memory.dmp
            Filesize

            388KB

          • memory/3608-154-0x0000000000000000-mapping.dmp
          • memory/3724-148-0x0000000010480000-0x00000000104E1000-memory.dmp
            Filesize

            388KB

          • memory/3724-146-0x0000000010480000-0x00000000104E1000-memory.dmp
            Filesize

            388KB

          • memory/3724-142-0x0000000000000000-mapping.dmp