Analysis

  • max time kernel
    152s
  • max time network
    188s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/12/2022, 08:00

General

  • Target

    987c1596286fc27307ddd2b9deedb71d01a2d24664ba453bdaeba54a576b0005.exe

  • Size

    444KB

  • MD5

    da843461c8693ff01265b18571d3c3e2

  • SHA1

    18aa29919a750f8822583e3d31748e1c30dfd06a

  • SHA256

    987c1596286fc27307ddd2b9deedb71d01a2d24664ba453bdaeba54a576b0005

  • SHA512

    5c4ce6ccca1d33a749f0d4cff3f937e2cd03ff371dee737471274e54303253be131ba6e600d5ed1d8d43fff0c00b582a2fc4f754a48322fc8962f8eb4bcda030

  • SSDEEP

    6144:ioGD1UV/qdIMdT6SxcSJPQncDRFCCuH8HQKmc6xZfqZA7J:ZQgzMdGSxWURFruH8HQxxJd7J

Malware Config

Extracted

Family

cybergate

Version

2.6

Botnet

con local

C2

127.0.0.1:3333

Mutex

sbbbvkljlñ

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

    texto da mensagem

  • message_box_title

    título da mensagem

  • password

    barrilete

  • 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 2 IoCs
  • Modifies Installed Components in the registry 2 TTPs 4 IoCs
  • UPX packed file 20 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
  • Suspicious use of SetThreadContext 2 IoCs
  • Drops file in Windows directory 2 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 SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3060
      • C:\Users\Admin\AppData\Local\Temp\987c1596286fc27307ddd2b9deedb71d01a2d24664ba453bdaeba54a576b0005.exe
        "C:\Users\Admin\AppData\Local\Temp\987c1596286fc27307ddd2b9deedb71d01a2d24664ba453bdaeba54a576b0005.exe"
        2⤵
        • Suspicious use of SetThreadContext
        • Drops file in Windows directory
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2092
        • C:\Users\Admin\AppData\Local\Temp\987c1596286fc27307ddd2b9deedb71d01a2d24664ba453bdaeba54a576b0005.exe
          C:\Users\Admin\AppData\Local\Temp\987c1596286fc27307ddd2b9deedb71d01a2d24664ba453bdaeba54a576b0005.exe
          3⤵
          • 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:4284
          • C:\Windows\SysWOW64\explorer.exe
            explorer.exe
            4⤵
            • Modifies Installed Components in the registry
            PID:228
          • C:\Program Files\Internet Explorer\iexplore.exe
            "C:\Program Files\Internet Explorer\iexplore.exe"
            4⤵
              PID:3728
            • C:\Users\Admin\AppData\Local\Temp\987c1596286fc27307ddd2b9deedb71d01a2d24664ba453bdaeba54a576b0005.exe
              "C:\Users\Admin\AppData\Local\Temp\987c1596286fc27307ddd2b9deedb71d01a2d24664ba453bdaeba54a576b0005.exe"
              4⤵
              • Checks computer location settings
              • Drops file in System32 directory
              • Modifies registry class
              • Suspicious behavior: GetForegroundWindowSpam
              • Suspicious use of AdjustPrivilegeToken
              PID:4660
              • C:\Windows\SysWOW64\install\server.exe
                "C:\Windows\system32\install\server.exe"
                5⤵
                • Executes dropped EXE
                • Suspicious use of SetThreadContext
                • Drops file in Windows directory
                • Suspicious use of SetWindowsHookEx
                PID:1208
                • C:\Windows\SysWOW64\install\server.exe
                  C:\Windows\SysWOW64\install\server.exe
                  6⤵
                  • Executes dropped EXE
                  PID:3376
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -u -p 3376 -s 576
                    7⤵
                    • Program crash
                    PID:4964
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 176 -p 3376 -ip 3376
        1⤵
          PID:1512

        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

                cb71e0a09a9e79ea09642806c3ffeb07

                SHA1

                98eab878b4be36a4cc177eb37cdf4a27693d59bf

                SHA256

                57bc070a0b41e2e8cbf5556ebce28cfa3cd54b9994f3775560d978f68234d016

                SHA512

                e32825926f3dd6d5830f365340d76e3794090a24fc62c71860b1f089761f3cb785022f54ecd113914321d035e665b14b2d442eb8d2afb8cc83f9e8e8d4e24167

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

                Filesize

                444KB

                MD5

                da843461c8693ff01265b18571d3c3e2

                SHA1

                18aa29919a750f8822583e3d31748e1c30dfd06a

                SHA256

                987c1596286fc27307ddd2b9deedb71d01a2d24664ba453bdaeba54a576b0005

                SHA512

                5c4ce6ccca1d33a749f0d4cff3f937e2cd03ff371dee737471274e54303253be131ba6e600d5ed1d8d43fff0c00b582a2fc4f754a48322fc8962f8eb4bcda030

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

                Filesize

                444KB

                MD5

                da843461c8693ff01265b18571d3c3e2

                SHA1

                18aa29919a750f8822583e3d31748e1c30dfd06a

                SHA256

                987c1596286fc27307ddd2b9deedb71d01a2d24664ba453bdaeba54a576b0005

                SHA512

                5c4ce6ccca1d33a749f0d4cff3f937e2cd03ff371dee737471274e54303253be131ba6e600d5ed1d8d43fff0c00b582a2fc4f754a48322fc8962f8eb4bcda030

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

                Filesize

                444KB

                MD5

                da843461c8693ff01265b18571d3c3e2

                SHA1

                18aa29919a750f8822583e3d31748e1c30dfd06a

                SHA256

                987c1596286fc27307ddd2b9deedb71d01a2d24664ba453bdaeba54a576b0005

                SHA512

                5c4ce6ccca1d33a749f0d4cff3f937e2cd03ff371dee737471274e54303253be131ba6e600d5ed1d8d43fff0c00b582a2fc4f754a48322fc8962f8eb4bcda030

              • C:\Windows\buscaminas.ini

                Filesize

                131B

                MD5

                26dab844beb1c3502c78c5ccb6d00474

                SHA1

                2f45ff77e7ab17812ed36c6ab13772b7197d638f

                SHA256

                2f2cf1938aa57fb23a4d9bcb6f28ffc80a89f02bbb37fefca93c4bd41475e500

                SHA512

                b458a4912e5d1e0b9b2fdbd2efdded3f7e89b69bd9b17f3a92e620f2376d72d87dbf38302c463447131333ea7629866b69af58ed5c972c9a22438f648d62dac6

              • memory/228-151-0x0000000024080000-0x00000000240E2000-memory.dmp

                Filesize

                392KB

              • memory/228-166-0x0000000024080000-0x00000000240E2000-memory.dmp

                Filesize

                392KB

              • memory/228-150-0x0000000024080000-0x00000000240E2000-memory.dmp

                Filesize

                392KB

              • memory/3376-180-0x0000000000400000-0x0000000000455000-memory.dmp

                Filesize

                340KB

              • memory/3376-177-0x0000000000400000-0x0000000000455000-memory.dmp

                Filesize

                340KB

              • memory/3376-178-0x0000000000400000-0x0000000000455000-memory.dmp

                Filesize

                340KB

              • memory/3376-179-0x0000000000400000-0x0000000000455000-memory.dmp

                Filesize

                340KB

              • memory/4284-139-0x0000000000400000-0x0000000000455000-memory.dmp

                Filesize

                340KB

              • memory/4284-160-0x0000000024160000-0x00000000241C2000-memory.dmp

                Filesize

                392KB

              • memory/4284-164-0x0000000000400000-0x0000000000455000-memory.dmp

                Filesize

                340KB

              • memory/4284-153-0x00000000240F0000-0x0000000024152000-memory.dmp

                Filesize

                392KB

              • memory/4284-147-0x0000000024080000-0x00000000240E2000-memory.dmp

                Filesize

                392KB

              • memory/4284-140-0x0000000000400000-0x0000000000455000-memory.dmp

                Filesize

                340KB

              • memory/4284-138-0x0000000000400000-0x0000000000455000-memory.dmp

                Filesize

                340KB

              • memory/4284-137-0x0000000000400000-0x0000000000455000-memory.dmp

                Filesize

                340KB

              • memory/4284-142-0x0000000024010000-0x0000000024072000-memory.dmp

                Filesize

                392KB

              • memory/4284-135-0x0000000000400000-0x0000000000455000-memory.dmp

                Filesize

                340KB

              • memory/4660-167-0x0000000024160000-0x00000000241C2000-memory.dmp

                Filesize

                392KB

              • memory/4660-165-0x0000000024160000-0x00000000241C2000-memory.dmp

                Filesize

                392KB

              • memory/4660-163-0x0000000024160000-0x00000000241C2000-memory.dmp

                Filesize

                392KB