Analysis

  • max time kernel
    152s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/10/2022, 14:36

General

  • Target

    9bccffb9e87cb218ed3b6cb18ec3b51d219befa9230d0d6466f80f4b368144c3.exe

  • Size

    663KB

  • MD5

    7c931fee37d27803fe15d31b9dd3a39b

  • SHA1

    4d2117dac85dff62f77024b0b158ab6b4310baaf

  • SHA256

    9bccffb9e87cb218ed3b6cb18ec3b51d219befa9230d0d6466f80f4b368144c3

  • SHA512

    c2e9f07b7f15d810e25024661650864919ed969449fc65f898af9e8fb2c225d05bf6f172188a15dee414369613734854d4f308e79afea8933a3ae090f6cde3d2

  • SSDEEP

    12288:fNH+FFSyn+8juzEgVzYKj86sR24hpOvjpJuy5HIjLWMbmN9VFYo:fNH+nSrFpYO6lAvvh5jN1Yo

Malware Config

Extracted

Family

cybergate

Version

2.6

Botnet

pp

C2

remik3.no-ip.org:81

Mutex

***MUTEX***

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

    3gp

  • message_box_title

    3gp

  • password

    1234

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 3 IoCs
  • Modifies Installed Components in the registry 2 TTPs 2 IoCs
  • UPX packed file 5 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.

  • Drops file in System32 directory 3 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Modifies registry class 6 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9bccffb9e87cb218ed3b6cb18ec3b51d219befa9230d0d6466f80f4b368144c3.exe
    "C:\Users\Admin\AppData\Local\Temp\9bccffb9e87cb218ed3b6cb18ec3b51d219befa9230d0d6466f80f4b368144c3.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4892
    • C:\Users\Admin\AppData\Local\Temp\9bccffb9e87cb218ed3b6cb18ec3b51d219befa9230d0d6466f80f4b368144c3.exe
      C:\Users\Admin\AppData\Local\Temp\9bccffb9e87cb218ed3b6cb18ec3b51d219befa9230d0d6466f80f4b368144c3.exe
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:5020
      • C:\Users\Admin\AppData\Local\Temp\9bccffb9e87cb218ed3b6cb18ec3b51d219befa9230d0d6466f80f4b368144c3.exe
        3⤵
        • Adds policy Run key to start application
        • Modifies Installed Components in the registry
        • Drops file in System32 directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:1844
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe"
          4⤵
            PID:856
          • C:\Users\Admin\AppData\Local\Temp\9bccffb9e87cb218ed3b6cb18ec3b51d219befa9230d0d6466f80f4b368144c3.exe
            "C:\Users\Admin\AppData\Local\Temp\9bccffb9e87cb218ed3b6cb18ec3b51d219befa9230d0d6466f80f4b368144c3.exe"
            4⤵
            • Checks computer location settings
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of AdjustPrivilegeToken
            PID:4400
            • C:\Windows\SysWOW64\install\server.exe
              "C:\Windows\system32\install\server.exe"
              5⤵
              • Executes dropped EXE
              • Suspicious use of SetThreadContext
              • Modifies registry class
              • Suspicious use of SetWindowsHookEx
              PID:1448
              • C:\Windows\SysWOW64\install\server.exe
                C:\Windows\SysWOW64\install\server.exe
                6⤵
                • Executes dropped EXE
                • Drops file in System32 directory
                • Suspicious use of SetThreadContext
                • Suspicious use of SetWindowsHookEx
                PID:1656
                • C:\Windows\SysWOW64\install\server.exe
                  7⤵
                  • Executes dropped EXE
                  • Suspicious behavior: EnumeratesProcesses
                  PID:2340

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

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

      Filesize

      229KB

      MD5

      07d6ba1286c4f49c922911ff4f8cfd6c

      SHA1

      7d2bb421d1b6b50e55a882b2e9ce19298c4352ce

      SHA256

      a751107498e6f789fa830f550928f7e7634ac6aaf5227bbe71162897878dbbf1

      SHA512

      2bf3d7f36fc8af83c483f56c66cce1088a7dbf10615a55d8123b2cd766923461407ea2b3b20d95d2a705e957d4bd7b9e60c66d8c8499d4e3236e89b3967ee0cc

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

      Filesize

      663KB

      MD5

      7c931fee37d27803fe15d31b9dd3a39b

      SHA1

      4d2117dac85dff62f77024b0b158ab6b4310baaf

      SHA256

      9bccffb9e87cb218ed3b6cb18ec3b51d219befa9230d0d6466f80f4b368144c3

      SHA512

      c2e9f07b7f15d810e25024661650864919ed969449fc65f898af9e8fb2c225d05bf6f172188a15dee414369613734854d4f308e79afea8933a3ae090f6cde3d2

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

      Filesize

      663KB

      MD5

      7c931fee37d27803fe15d31b9dd3a39b

      SHA1

      4d2117dac85dff62f77024b0b158ab6b4310baaf

      SHA256

      9bccffb9e87cb218ed3b6cb18ec3b51d219befa9230d0d6466f80f4b368144c3

      SHA512

      c2e9f07b7f15d810e25024661650864919ed969449fc65f898af9e8fb2c225d05bf6f172188a15dee414369613734854d4f308e79afea8933a3ae090f6cde3d2

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

      Filesize

      663KB

      MD5

      7c931fee37d27803fe15d31b9dd3a39b

      SHA1

      4d2117dac85dff62f77024b0b158ab6b4310baaf

      SHA256

      9bccffb9e87cb218ed3b6cb18ec3b51d219befa9230d0d6466f80f4b368144c3

      SHA512

      c2e9f07b7f15d810e25024661650864919ed969449fc65f898af9e8fb2c225d05bf6f172188a15dee414369613734854d4f308e79afea8933a3ae090f6cde3d2

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

      Filesize

      663KB

      MD5

      7c931fee37d27803fe15d31b9dd3a39b

      SHA1

      4d2117dac85dff62f77024b0b158ab6b4310baaf

      SHA256

      9bccffb9e87cb218ed3b6cb18ec3b51d219befa9230d0d6466f80f4b368144c3

      SHA512

      c2e9f07b7f15d810e25024661650864919ed969449fc65f898af9e8fb2c225d05bf6f172188a15dee414369613734854d4f308e79afea8933a3ae090f6cde3d2

    • memory/1448-165-0x0000000000400000-0x0000000000559000-memory.dmp

      Filesize

      1.3MB

    • memory/1448-182-0x0000000000400000-0x0000000000559000-memory.dmp

      Filesize

      1.3MB

    • memory/1656-180-0x0000000000400000-0x0000000000418000-memory.dmp

      Filesize

      96KB

    • memory/1844-147-0x0000000000400000-0x000000000044E000-memory.dmp

      Filesize

      312KB

    • memory/1844-149-0x0000000024010000-0x0000000024072000-memory.dmp

      Filesize

      392KB

    • memory/1844-146-0x0000000000400000-0x000000000044E000-memory.dmp

      Filesize

      312KB

    • memory/1844-155-0x0000000024080000-0x00000000240E2000-memory.dmp

      Filesize

      392KB

    • memory/1844-158-0x0000000000400000-0x000000000044E000-memory.dmp

      Filesize

      312KB

    • memory/1844-144-0x0000000000400000-0x000000000044E000-memory.dmp

      Filesize

      312KB

    • memory/1844-143-0x0000000000400000-0x000000000044E000-memory.dmp

      Filesize

      312KB

    • memory/2340-179-0x0000000000400000-0x000000000044E000-memory.dmp

      Filesize

      312KB

    • memory/2340-181-0x0000000000400000-0x000000000044E000-memory.dmp

      Filesize

      312KB

    • memory/2340-183-0x0000000000400000-0x000000000044E000-memory.dmp

      Filesize

      312KB

    • memory/4400-159-0x0000000024080000-0x00000000240E2000-memory.dmp

      Filesize

      392KB

    • memory/4400-166-0x0000000024080000-0x00000000240E2000-memory.dmp

      Filesize

      392KB

    • memory/4400-162-0x0000000024080000-0x00000000240E2000-memory.dmp

      Filesize

      392KB

    • memory/4400-154-0x0000000000400000-0x0000000000559000-memory.dmp

      Filesize

      1.3MB

    • memory/4892-134-0x0000000000400000-0x0000000000559000-memory.dmp

      Filesize

      1.3MB

    • memory/4892-140-0x0000000000400000-0x0000000000559000-memory.dmp

      Filesize

      1.3MB

    • memory/4892-135-0x00000000023B0000-0x00000000023BE000-memory.dmp

      Filesize

      56KB

    • memory/5020-145-0x0000000000400000-0x0000000000418000-memory.dmp

      Filesize

      96KB

    • memory/5020-137-0x0000000000400000-0x0000000000418000-memory.dmp

      Filesize

      96KB