Analysis

  • max time kernel
    164s
  • max time network
    176s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-10-2022 05:12

General

  • Target

    70f1097dfb7efda0bdf21f8b028ec68188dc45f914da208f8a071b956de11a26.exe

  • Size

    384KB

  • MD5

    80bbdeb6bbcb978fe1f233029ef56178

  • SHA1

    a9893ac9a93f2e51adb4650ee8b691fd5a549beb

  • SHA256

    70f1097dfb7efda0bdf21f8b028ec68188dc45f914da208f8a071b956de11a26

  • SHA512

    bfd69001214aca3bbf8e799b904c63915458dcbbfca747330cd9563b049ed7399c124150dab8c950bb9a47cf33415609edd411b795cb1bba0c8279c602a3729a

  • SSDEEP

    6144:X4ABF94EpAuO/50BTnqPd0Mpz7qhh4nXjjf8MZ9BKXKzoeOFXfdOVpdLqaJfB5:oUKGLE0kuGnESBzwe1Z7

Malware Config

Extracted

Family

cybergate

Version

v1.04.8

Botnet

remote

C2

127.0.0.1:999

Mutex

QG7QHMSDDTB41D

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

    123456

  • 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
  • UPX packed file 10 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
  • 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 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:3064
      • C:\Users\Admin\AppData\Local\Temp\70f1097dfb7efda0bdf21f8b028ec68188dc45f914da208f8a071b956de11a26.exe
        "C:\Users\Admin\AppData\Local\Temp\70f1097dfb7efda0bdf21f8b028ec68188dc45f914da208f8a071b956de11a26.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:2556
        • C:\Windows\SysWOW64\explorer.exe
          explorer.exe
          3⤵
          • Modifies Installed Components in the registry
          PID:1268
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe"
          3⤵
            PID:3656
          • C:\Users\Admin\AppData\Local\Temp\70f1097dfb7efda0bdf21f8b028ec68188dc45f914da208f8a071b956de11a26.exe
            "C:\Users\Admin\AppData\Local\Temp\70f1097dfb7efda0bdf21f8b028ec68188dc45f914da208f8a071b956de11a26.exe"
            3⤵
            • Checks computer location settings
            • Drops file in System32 directory
            • Modifies registry class
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of AdjustPrivilegeToken
            PID:3808
            • C:\Windows\SysWOW64\install\server.exe
              "C:\Windows\system32\install\server.exe"
              4⤵
              • Executes dropped EXE
              PID:3444
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 3444 -s 564
                5⤵
                • Program crash
                PID:4396
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 3444 -ip 3444
        1⤵
          PID:1372

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          222KB

          MD5

          181a3fa4a1e9fb8038ce50d648166f86

          SHA1

          64d7d0d98e4382da17cf391328c8ad5425691879

          SHA256

          abe687aaa76cf21269faa8be03137119a03c7e50e4d204162008d7b0f707e261

          SHA512

          824dd1ac4dc2de46ca60faac04dc529da01220a277e14ed96b43ee315206507d101bddd0518cdd4af9d730b819c480094e808076d71e3737d2aa513f64547f3e

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

          Filesize

          384KB

          MD5

          80bbdeb6bbcb978fe1f233029ef56178

          SHA1

          a9893ac9a93f2e51adb4650ee8b691fd5a549beb

          SHA256

          70f1097dfb7efda0bdf21f8b028ec68188dc45f914da208f8a071b956de11a26

          SHA512

          bfd69001214aca3bbf8e799b904c63915458dcbbfca747330cd9563b049ed7399c124150dab8c950bb9a47cf33415609edd411b795cb1bba0c8279c602a3729a

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

          Filesize

          384KB

          MD5

          80bbdeb6bbcb978fe1f233029ef56178

          SHA1

          a9893ac9a93f2e51adb4650ee8b691fd5a549beb

          SHA256

          70f1097dfb7efda0bdf21f8b028ec68188dc45f914da208f8a071b956de11a26

          SHA512

          bfd69001214aca3bbf8e799b904c63915458dcbbfca747330cd9563b049ed7399c124150dab8c950bb9a47cf33415609edd411b795cb1bba0c8279c602a3729a

        • memory/1268-156-0x0000000010480000-0x00000000104E1000-memory.dmp

          Filesize

          388KB

        • memory/1268-142-0x0000000010480000-0x00000000104E1000-memory.dmp

          Filesize

          388KB

        • memory/1268-141-0x0000000010480000-0x00000000104E1000-memory.dmp

          Filesize

          388KB

        • memory/2556-138-0x0000000010480000-0x00000000104E1000-memory.dmp

          Filesize

          388KB

        • memory/2556-146-0x00000000104F0000-0x0000000010551000-memory.dmp

          Filesize

          388KB

        • memory/2556-151-0x0000000010560000-0x00000000105C1000-memory.dmp

          Filesize

          388KB

        • memory/2556-133-0x0000000010410000-0x0000000010471000-memory.dmp

          Filesize

          388KB

        • memory/3808-154-0x0000000010560000-0x00000000105C1000-memory.dmp

          Filesize

          388KB

        • memory/3808-155-0x0000000010560000-0x00000000105C1000-memory.dmp

          Filesize

          388KB

        • memory/3808-157-0x0000000010560000-0x00000000105C1000-memory.dmp

          Filesize

          388KB