Analysis

  • max time kernel
    189s
  • max time network
    200s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24/11/2022, 02:58

General

  • Target
    5e227cc4b6f01efa5ea144c0e816fa1ffa5182f24c005f2d310514a232cc1b09.exe
  • Size 1.1MB
  • Sample221124-df88caga71
  • SHA256 5e227cc4b6f01efa5ea144c0e816fa1ffa5182f24c005f2d310514a232cc1b09
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • cybergate

Version
  • 2.6

Botnet
  • SegundaFeira@@

C2
  • virtualnet2484.ddns.net:2008

Mutex
  • ***MUTEX***

Attributes
  • enable_keylogger

    true

  • enable_message_box

    false

  • ftp_directory

    ./logs/

  • ftp_interval

    30

  • injected_process

    svshost.exe

  • install_dir

    Microsoft Word

  • install_file

    svshost.exe

  • install_flag

    true

  • keylogger_enable_ftp

    false

  • message_box_caption

    texto da mensagem

  • message_box_title

    título da mensagem

  • password

    abcd1234

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 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.

  • AutoIT Executable 3 IoCs

    AutoIT scripts compiled to PE executables.

  • 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.

  • 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:\Users\Admin\AppData\Local\Temp\5e227cc4b6f01efa5ea144c0e816fa1ffa5182f24c005f2d310514a232cc1b09.exe
    "C:\Users\Admin\AppData\Local\Temp\5e227cc4b6f01efa5ea144c0e816fa1ffa5182f24c005f2d310514a232cc1b09.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4724
    • C:\Users\Admin\AppData\Local\Temp\5e227cc4b6f01efa5ea144c0e816fa1ffa5182f24c005f2d310514a232cc1b09.exe
      "C:\Users\Admin\AppData\Local\Temp\5e227cc4b6f01efa5ea144c0e816fa1ffa5182f24c005f2d310514a232cc1b09.exe"
      2⤵
      • Adds policy Run key to start application
      • Modifies Installed Components in the registry
      • Drops file in System32 directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:2632
      • C:\Windows\SysWOW64\explorer.exe
        explorer.exe
        3⤵
        • Modifies Installed Components in the registry
        PID:4200
      • C:\Program Files\Internet Explorer\iexplore.exe
        "C:\Program Files\Internet Explorer\iexplore.exe"
        3⤵
          PID:2488
        • C:\Users\Admin\AppData\Local\Temp\5e227cc4b6f01efa5ea144c0e816fa1ffa5182f24c005f2d310514a232cc1b09.exe
          "C:\Users\Admin\AppData\Local\Temp\5e227cc4b6f01efa5ea144c0e816fa1ffa5182f24c005f2d310514a232cc1b09.exe"
          3⤵
          • Checks computer location settings
          • Drops file in System32 directory
          • Modifies registry class
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of AdjustPrivilegeToken
          PID:4788
          • C:\Windows\SysWOW64\Microsoft Word\svshost.exe
            "C:\Windows\system32\Microsoft Word\svshost.exe"
            4⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            PID:1604
            • C:\Windows\SysWOW64\Microsoft Word\svshost.exe
              "C:\Windows\SysWOW64\Microsoft Word\svshost.exe"
              5⤵
              • Executes dropped EXE
              PID:1824
    • C:\Windows\Explorer.EXE
      C:\Windows\Explorer.EXE
      1⤵
        PID:388

      Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            XX--XX--XX.txt

            • Path C:\Users\Admin\AppData\Local\Temp\XX--XX--XX.txt
            • Size 229KB
            • SHA256 327ddca8a795159329a8f66b04b3083cf9d8757aea19c353367e6c1d2f329e3c
            • MD5 SHA1 SHA512 SSDEEP

            svshost.exe

            • Path C:\Windows\SysWOW64\Microsoft Word\svshost.exe
            • Size 1.1MB
            • SHA256 5e227cc4b6f01efa5ea144c0e816fa1ffa5182f24c005f2d310514a232cc1b09
            • MD5 SHA1 SHA512 SSDEEP

            svshost.exe

            • Path C:\Windows\SysWOW64\Microsoft Word\svshost.exe
            • Size 1.1MB
            • SHA256 5e227cc4b6f01efa5ea144c0e816fa1ffa5182f24c005f2d310514a232cc1b09
            • MD5 SHA1 SHA512 SSDEEP

            svshost.exe

            • Path C:\Windows\SysWOW64\Microsoft Word\svshost.exe
            • Size 1.1MB
            • SHA256 5e227cc4b6f01efa5ea144c0e816fa1ffa5182f24c005f2d310514a232cc1b09
            • MD5 SHA1 SHA512 SSDEEP

            memory/1824-170-0x0000000000400000-0x0000000000450000-memory.dmp

            memory/1824-172-0x0000000000400000-0x0000000000450000-memory.dmp

            memory/1824-171-0x0000000000400000-0x0000000000450000-memory.dmp

            memory/2632-136-0x0000000000400000-0x0000000000450000-memory.dmp

            memory/2632-149-0x00000000240F0000-0x0000000024152000-memory.dmp

            memory/2632-134-0x0000000000400000-0x0000000000450000-memory.dmp

            memory/2632-135-0x0000000000400000-0x0000000000450000-memory.dmp

            memory/2632-133-0x0000000000400000-0x0000000000450000-memory.dmp

            memory/2632-156-0x0000000024160000-0x00000000241C2000-memory.dmp

            memory/2632-143-0x0000000024080000-0x00000000240E2000-memory.dmp

            memory/2632-160-0x0000000000400000-0x0000000000450000-memory.dmp

            memory/2632-138-0x0000000024010000-0x0000000024072000-memory.dmp

            memory/4200-164-0x0000000024080000-0x00000000240E2000-memory.dmp

            memory/4200-147-0x0000000024080000-0x00000000240E2000-memory.dmp

            memory/4200-146-0x0000000024080000-0x00000000240E2000-memory.dmp

            memory/4788-161-0x0000000024160000-0x00000000241C2000-memory.dmp

            memory/4788-165-0x0000000024160000-0x00000000241C2000-memory.dmp

            memory/4788-159-0x0000000024160000-0x00000000241C2000-memory.dmp