Analysis

  • max time kernel
    159s
  • max time network
    193s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/10/2022, 02:58

General

  • Target
    0b20f50ca7305c55b40b14f5df24e452ac7d0f779b6b64893a3828d962141e1d.exe
  • Size 486KB
  • Sample221021-dghf1shee6
  • SHA256 0b20f50ca7305c55b40b14f5df24e452ac7d0f779b6b64893a3828d962141e1d
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • cybergate

Version
  • v1.07.5

Botnet
  • VICTIM

C2
  • experimentalhost.no-ip.biz:81

  • marutza06.no-ip.biz:82

  • marutza07.no-ip.biz:85

  • marutza08.no-ip.biz:100

  • marutza09.no-ip.biz:101

  • marutza05.no-ip.biz:83

Mutex
  • 74PGHW85K13D37

Attributes
  • enable_keylogger

    true

  • enable_message_box

    false

  • ftp_directory

    ./logs/

  • ftp_interval

    30

  • injected_process

    explorer.exe

  • install_file

    WinDriver.exe

  • install_flag

    true

  • keylogger_enable_ftp

    false

  • message_box_caption

    Remote Administration anywhere in the world.

  • message_box_title

    CyberGate

  • password

    hacked6

  • 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
  • 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\0b20f50ca7305c55b40b14f5df24e452ac7d0f779b6b64893a3828d962141e1d.exe
    "C:\Users\Admin\AppData\Local\Temp\0b20f50ca7305c55b40b14f5df24e452ac7d0f779b6b64893a3828d962141e1d.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:4196
    • C:\Windows\SysWOW64\explorer.exe
      explorer.exe
      2⤵
      • Modifies Installed Components in the registry
      • Suspicious use of AdjustPrivilegeToken
      PID:4036
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe"
      2⤵
        PID:4664
      • C:\Users\Admin\AppData\Local\Temp\0b20f50ca7305c55b40b14f5df24e452ac7d0f779b6b64893a3828d962141e1d.exe
        "C:\Users\Admin\AppData\Local\Temp\0b20f50ca7305c55b40b14f5df24e452ac7d0f779b6b64893a3828d962141e1d.exe"
        2⤵
        • Checks computer location settings
        • Drops file in System32 directory
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        PID:2072
        • C:\Windows\SysWOW64\WinDriver.exe
          "C:\Windows\system32\WinDriver.exe"
          3⤵
          • Executes dropped EXE
          PID:3468
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 3468 -s 580
            4⤵
            • Program crash
            PID:2012
    • C:\Windows\Explorer.EXE
      C:\Windows\Explorer.EXE
      1⤵
        PID:2720
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3468 -ip 3468
        1⤵
          PID:1928

        Network

              MITRE ATT&CK Enterprise v6

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              Admin2.txt

              • Path C:\Users\Admin\AppData\Local\Temp\Admin2.txt
              • Size 225KB
              • SHA256 23420ce912097ec1a49ee2cc981e3c22778c03146c20141d46f7103cfb94d102
              • MD5 SHA1 SHA512 SSDEEP

              WinDriver.exe

              • Path C:\Windows\SysWOW64\WinDriver.exe
              • Size 486KB
              • SHA256 0b20f50ca7305c55b40b14f5df24e452ac7d0f779b6b64893a3828d962141e1d
              • MD5 SHA1 SHA512 SSDEEP

              WinDriver.exe

              • Path C:\Windows\SysWOW64\WinDriver.exe
              • Size 486KB
              • SHA256 0b20f50ca7305c55b40b14f5df24e452ac7d0f779b6b64893a3828d962141e1d
              • MD5 SHA1 SHA512 SSDEEP

              memory/2072-158-0x0000000010560000-0x00000000105C5000-memory.dmp

              memory/2072-155-0x0000000010560000-0x00000000105C5000-memory.dmp

              memory/2072-154-0x0000000010560000-0x00000000105C5000-memory.dmp

              memory/4036-144-0x0000000010480000-0x00000000104E5000-memory.dmp

              memory/4036-141-0x0000000010480000-0x00000000104E5000-memory.dmp

              memory/4196-151-0x0000000010560000-0x00000000105C5000-memory.dmp

              memory/4196-146-0x00000000104F0000-0x0000000010555000-memory.dmp

              memory/4196-133-0x0000000010410000-0x0000000010475000-memory.dmp

              memory/4196-138-0x0000000010480000-0x00000000104E5000-memory.dmp