Analysis

  • max time kernel
    151s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/10/2022, 02:58

General

  • Target
    18adcf66c78acc3e4d8ad6076f0c281d8238b8bd09db487d81e299f22b757f5c.exe
  • Size 289KB
  • Sample221021-dgfx7ahee4
  • SHA256 18adcf66c78acc3e4d8ad6076f0c281d8238b8bd09db487d81e299f22b757f5c
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • cybergate

Version
  • v1.07.5

Botnet
  • test minecraft pack de texture

C2
  • loardering.no-ip.org:81

Mutex
  • 26K5W3HS163Q12

Attributes
  • enable_keylogger

    true

  • enable_message_box

    true

  • ftp_directory

    ./logs/

  • ftp_interval

    30

  • injected_process

    explorer.exe

  • install_dir

    Microsoft

  • install_file

    Windows Update.exe

  • install_flag

    true

  • keylogger_enable_ftp

    false

  • message_box_caption

    The error is not found

  • message_box_title

    Error

  • 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 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 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 6 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\18adcf66c78acc3e4d8ad6076f0c281d8238b8bd09db487d81e299f22b757f5c.exe
    "C:\Users\Admin\AppData\Local\Temp\18adcf66c78acc3e4d8ad6076f0c281d8238b8bd09db487d81e299f22b757f5c.exe"
    1⤵
    • 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:4100
    • C:\Windows\SysWOW64\explorer.exe
      explorer.exe
      2⤵
      • Modifies Installed Components in the registry
      • Suspicious use of AdjustPrivilegeToken
      PID:856
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe"
      2⤵
        PID:2136
      • C:\Users\Admin\AppData\Local\Temp\18adcf66c78acc3e4d8ad6076f0c281d8238b8bd09db487d81e299f22b757f5c.exe
        "C:\Users\Admin\AppData\Local\Temp\18adcf66c78acc3e4d8ad6076f0c281d8238b8bd09db487d81e299f22b757f5c.exe"
        2⤵
        • Checks computer location settings
        • Drops file in System32 directory
        • Modifies registry class
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        PID:2168
        • C:\Windows\SysWOW64\Microsoft\Windows Update.exe
          "C:\Windows\system32\Microsoft\Windows Update.exe"
          3⤵
          • Executes dropped EXE
          PID:3452
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 3452 -s 592
            4⤵
            • Program crash
            PID:1304
    • C:\Windows\Explorer.EXE
      C:\Windows\Explorer.EXE
      1⤵
        PID:2416
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3452 -ip 3452
        1⤵
          PID:4828

        Network

              MITRE ATT&CK Enterprise v6

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              Admin2.txt

              • Path C:\Users\Admin\AppData\Local\Temp\Admin2.txt
              • Size 224KB
              • SHA256 1562ba1539c384b57c024833e64331d87365a4dd341a614ea057347c2b07d969
              • MD5 SHA1 SHA512 SSDEEP

              Windows Update.exe

              • Path C:\Windows\SysWOW64\Microsoft\Windows Update.exe
              • Size 289KB
              • SHA256 18adcf66c78acc3e4d8ad6076f0c281d8238b8bd09db487d81e299f22b757f5c
              • MD5 SHA1 SHA512 SSDEEP

              Windows Update.exe

              • Path C:\Windows\SysWOW64\Microsoft\Windows Update.exe
              • Size 289KB
              • SHA256 18adcf66c78acc3e4d8ad6076f0c281d8238b8bd09db487d81e299f22b757f5c
              • MD5 SHA1 SHA512 SSDEEP

              memory/856-144-0x0000000010480000-0x00000000104E5000-memory.dmp

              memory/856-141-0x0000000010480000-0x00000000104E5000-memory.dmp

              memory/2168-154-0x0000000010560000-0x00000000105C5000-memory.dmp

              memory/2168-155-0x0000000010560000-0x00000000105C5000-memory.dmp

              memory/2168-158-0x0000000010560000-0x00000000105C5000-memory.dmp

              memory/4100-138-0x0000000010480000-0x00000000104E5000-memory.dmp

              memory/4100-133-0x0000000010410000-0x0000000010475000-memory.dmp

              memory/4100-146-0x00000000104F0000-0x0000000010555000-memory.dmp

              memory/4100-151-0x0000000010560000-0x00000000105C5000-memory.dmp