Analysis

  • max time kernel
    151s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-12-2022 00:07

General

  • Target

    3da47876379f551fa07df8de18cfb3f7b8764599a383374cb36ded4864ce6258.exe

  • Size

    328KB

  • MD5

    47f28bb51084002cbd9f6033378e65fb

  • SHA1

    0af0d68652d1b0c6d59d08805a8647befb8daded

  • SHA256

    3da47876379f551fa07df8de18cfb3f7b8764599a383374cb36ded4864ce6258

  • SHA512

    b5bf0e0a3142fe74d6c0c47faa0d77a856b6044b9307b93c30d076704c801af1fcefece2f74c680d0b490ef729acf2bdd7ca6d9cec0bfb861615802ef70613c6

  • SSDEEP

    6144:rafYsiHC94Tb+MwfC0QK4nzIq88Wl2YoFBsmbbRdqNQthVW6fpqN:W59Ib+V/VVl2hXfGNCbWSm

Malware Config

Extracted

Family

cybergate

Version

v1.07.5

Botnet

UA

C2

mulenrug.zapto.org:100

Mutex

1PN42F5U3YDH13

Attributes
  • enable_keylogger

    true

  • enable_message_box

    false

  • ftp_directory

    ./logs/

  • ftp_interval

    30

  • injected_process

    explorer.exe

  • install_dir

    install

  • install_file

    ua.exe

  • install_flag

    true

  • keylogger_enable_ftp

    false

  • password

    pirat

  • 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 19 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
  • 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: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:2416
      • C:\Users\Admin\AppData\Local\Temp\3da47876379f551fa07df8de18cfb3f7b8764599a383374cb36ded4864ce6258.exe
        "C:\Users\Admin\AppData\Local\Temp\3da47876379f551fa07df8de18cfb3f7b8764599a383374cb36ded4864ce6258.exe"
        2⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1536
        • C:\Users\Admin\AppData\Local\Temp\3da47876379f551fa07df8de18cfb3f7b8764599a383374cb36ded4864ce6258.exe
          C:\Users\Admin\AppData\Local\Temp\3da47876379f551fa07df8de18cfb3f7b8764599a383374cb36ded4864ce6258.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 behavior: EnumeratesProcesses
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of WriteProcessMemory
          PID:2308
          • C:\Windows\SysWOW64\explorer.exe
            explorer.exe
            4⤵
            • Modifies Installed Components in the registry
            • Suspicious use of AdjustPrivilegeToken
            PID:4960
          • C:\Program Files\Internet Explorer\iexplore.exe
            "C:\Program Files\Internet Explorer\iexplore.exe"
            4⤵
              PID:1996
            • C:\Users\Admin\AppData\Local\Temp\3da47876379f551fa07df8de18cfb3f7b8764599a383374cb36ded4864ce6258.exe
              "C:\Users\Admin\AppData\Local\Temp\3da47876379f551fa07df8de18cfb3f7b8764599a383374cb36ded4864ce6258.exe"
              4⤵
              • Checks computer location settings
              • Drops file in System32 directory
              • Modifies registry class
              • Suspicious behavior: GetForegroundWindowSpam
              • Suspicious use of AdjustPrivilegeToken
              PID:2636
              • C:\Windows\SysWOW64\install\ua.exe
                "C:\Windows\system32\install\ua.exe"
                5⤵
                • Executes dropped EXE
                • Suspicious use of SetThreadContext
                • Suspicious use of SetWindowsHookEx
                PID:308
                • C:\Windows\SysWOW64\install\ua.exe
                  C:\Windows\SysWOW64\install\ua.exe
                  6⤵
                  • Executes dropped EXE
                  PID:3452
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -u -p 3452 -s 592
                    7⤵
                    • Program crash
                    PID:1032
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 3452 -ip 3452
        1⤵
          PID:4416

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\Admin2.txt

          Filesize

          224KB

          MD5

          a2f7e5bbf6a2d43c32ccefcc0ffa578a

          SHA1

          e35dca6b9ffbc5f92341aef3453011f9a8d3a48f

          SHA256

          6449774986a03def8b1c48f21dffe176d81da0989156ece70d5a5cecc54a1d41

          SHA512

          9bdf55b7a37aee2b6d841e09333115a733d5c513d80fbb2ee1699dce20c1033a442b56b8238f4c5b9ec65cd5042a8bf584b558d91dc8080e98dc7282f0d169a8

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

          Filesize

          328KB

          MD5

          47f28bb51084002cbd9f6033378e65fb

          SHA1

          0af0d68652d1b0c6d59d08805a8647befb8daded

          SHA256

          3da47876379f551fa07df8de18cfb3f7b8764599a383374cb36ded4864ce6258

          SHA512

          b5bf0e0a3142fe74d6c0c47faa0d77a856b6044b9307b93c30d076704c801af1fcefece2f74c680d0b490ef729acf2bdd7ca6d9cec0bfb861615802ef70613c6

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

          Filesize

          328KB

          MD5

          47f28bb51084002cbd9f6033378e65fb

          SHA1

          0af0d68652d1b0c6d59d08805a8647befb8daded

          SHA256

          3da47876379f551fa07df8de18cfb3f7b8764599a383374cb36ded4864ce6258

          SHA512

          b5bf0e0a3142fe74d6c0c47faa0d77a856b6044b9307b93c30d076704c801af1fcefece2f74c680d0b490ef729acf2bdd7ca6d9cec0bfb861615802ef70613c6

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

          Filesize

          328KB

          MD5

          47f28bb51084002cbd9f6033378e65fb

          SHA1

          0af0d68652d1b0c6d59d08805a8647befb8daded

          SHA256

          3da47876379f551fa07df8de18cfb3f7b8764599a383374cb36ded4864ce6258

          SHA512

          b5bf0e0a3142fe74d6c0c47faa0d77a856b6044b9307b93c30d076704c801af1fcefece2f74c680d0b490ef729acf2bdd7ca6d9cec0bfb861615802ef70613c6

        • memory/308-163-0x0000000000000000-mapping.dmp

        • memory/2308-144-0x0000000010480000-0x00000000104E5000-memory.dmp

          Filesize

          404KB

        • memory/2308-133-0x0000000000400000-0x0000000000458000-memory.dmp

          Filesize

          352KB

        • memory/2308-132-0x0000000000000000-mapping.dmp

        • memory/2308-135-0x0000000000400000-0x0000000000458000-memory.dmp

          Filesize

          352KB

        • memory/2308-136-0x0000000000400000-0x0000000000458000-memory.dmp

          Filesize

          352KB

        • memory/2308-150-0x00000000104F0000-0x0000000010555000-memory.dmp

          Filesize

          404KB

        • memory/2308-161-0x0000000000400000-0x0000000000458000-memory.dmp

          Filesize

          352KB

        • memory/2308-139-0x0000000010410000-0x0000000010475000-memory.dmp

          Filesize

          404KB

        • memory/2308-137-0x0000000000400000-0x0000000000458000-memory.dmp

          Filesize

          352KB

        • memory/2308-157-0x0000000010560000-0x00000000105C5000-memory.dmp

          Filesize

          404KB

        • memory/2636-154-0x0000000000000000-mapping.dmp

        • memory/2636-162-0x0000000010560000-0x00000000105C5000-memory.dmp

          Filesize

          404KB

        • memory/2636-160-0x0000000010560000-0x00000000105C5000-memory.dmp

          Filesize

          404KB

        • memory/2636-174-0x0000000010560000-0x00000000105C5000-memory.dmp

          Filesize

          404KB

        • memory/3452-171-0x0000000000400000-0x0000000000458000-memory.dmp

          Filesize

          352KB

        • memory/3452-165-0x0000000000000000-mapping.dmp

        • memory/3452-172-0x0000000000400000-0x0000000000458000-memory.dmp

          Filesize

          352KB

        • memory/3452-169-0x0000000000400000-0x0000000000458000-memory.dmp

          Filesize

          352KB

        • memory/3452-170-0x0000000000400000-0x0000000000458000-memory.dmp

          Filesize

          352KB

        • memory/4960-148-0x0000000010480000-0x00000000104E5000-memory.dmp

          Filesize

          404KB

        • memory/4960-143-0x0000000000000000-mapping.dmp

        • memory/4960-173-0x0000000010480000-0x00000000104E5000-memory.dmp

          Filesize

          404KB

        • memory/4960-147-0x0000000010480000-0x00000000104E5000-memory.dmp

          Filesize

          404KB