Analysis

  • max time kernel
    152s
  • max time network
    155s
  • 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, 07:14

General

  • Target

    8b15a0d2e0da7be8af7d2367751d3ba86ba643fb0f8fa79ab94ab950e3b52192.exe

  • Size

    356KB

  • MD5

    48211fdb1c49ea7fcedd4baea0b47e93

  • SHA1

    4ef9e88b1e96bc064cbd3e711b314e70d6af711b

  • SHA256

    8b15a0d2e0da7be8af7d2367751d3ba86ba643fb0f8fa79ab94ab950e3b52192

  • SHA512

    a3976b99fd59b9c77bbd8c72fb766c19a45a17727c6f5e1ea5f87d400eb17ed54c11a6a9f6fc59957c754dc77eedc37e285f3d08036e06abc86618c913078eac

  • SSDEEP

    6144:GcK2ikSJKTlFEc1lv2FD3xn2T6PrbkCKaJmXRLX83xX7KHnrcJBcwTR/nK:GcKp/v1Vn2u/TVJmXFal/J2cJK

Malware Config

Extracted

Family

cybergate

Version

2.6

Botnet

China Town Hi

C2

leofelvoltou.no-ip.org:81

leoefelvoltou.no-ip.org:81

Mutex

***MUTEX***

Attributes
  • enable_keylogger

    true

  • enable_message_box

    true

  • ftp_directory

    ./logs/

  • ftp_interval

    30

  • injected_process

    explorer.exe

  • install_dir

    system32

  • install_file

    javas.exe

  • install_flag

    true

  • keylogger_enable_ftp

    false

  • message_box_caption

    Seu sistema não suportou a versão framework do programa, por favor obtenha uma versão mais atualizada do programa.

  • message_box_title

    Atenção

  • password

    leonardo2009

  • regkey_hkcu

    WIN32

  • regkey_hklm

    WIN32

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 17 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 5 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.

  • Program crash 1 IoCs
  • Modifies registry class 1 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:2440
      • C:\Users\Admin\AppData\Local\Temp\8b15a0d2e0da7be8af7d2367751d3ba86ba643fb0f8fa79ab94ab950e3b52192.exe
        "C:\Users\Admin\AppData\Local\Temp\8b15a0d2e0da7be8af7d2367751d3ba86ba643fb0f8fa79ab94ab950e3b52192.exe"
        2⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1984
        • C:\Users\Admin\AppData\Local\Temp\8b15a0d2e0da7be8af7d2367751d3ba86ba643fb0f8fa79ab94ab950e3b52192.exe
          "C:\Users\Admin\AppData\Local\Temp\8b15a0d2e0da7be8af7d2367751d3ba86ba643fb0f8fa79ab94ab950e3b52192.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 use of FindShellTrayWindow
          • Suspicious use of WriteProcessMemory
          PID:3876
          • C:\Windows\SysWOW64\explorer.exe
            explorer.exe
            4⤵
            • Modifies Installed Components in the registry
            PID:4616
          • C:\Program Files\Internet Explorer\iexplore.exe
            "C:\Program Files\Internet Explorer\iexplore.exe"
            4⤵
              PID:3496
            • C:\Users\Admin\AppData\Local\Temp\8b15a0d2e0da7be8af7d2367751d3ba86ba643fb0f8fa79ab94ab950e3b52192.exe
              "C:\Users\Admin\AppData\Local\Temp\8b15a0d2e0da7be8af7d2367751d3ba86ba643fb0f8fa79ab94ab950e3b52192.exe"
              4⤵
              • Checks computer location settings
              • Drops file in System32 directory
              • Modifies registry class
              • Suspicious behavior: GetForegroundWindowSpam
              • Suspicious use of AdjustPrivilegeToken
              PID:2208
              • C:\Windows\SysWOW64\javas.exe
                "C:\Windows\system32\javas.exe"
                5⤵
                • Executes dropped EXE
                • Drops file in System32 directory
                • Suspicious use of SetThreadContext
                • Suspicious use of SetWindowsHookEx
                PID:1532
                • C:\Windows\SysWOW64\javas.exe
                  "C:\Windows\SysWOW64\javas.exe"
                  6⤵
                  • Executes dropped EXE
                  PID:2192
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -u -p 2192 -s 524
                    7⤵
                    • Program crash
                    PID:2960
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 2192 -ip 2192
        1⤵
          PID:3564

        Network

              MITRE ATT&CK Enterprise v6

              Replay Monitor

              Loading Replay Monitor...

              Downloads

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

                Filesize

                230KB

                MD5

                cf15c57f7ecde39356e7ac5b0ae5faaf

                SHA1

                2aa6fca7ac341f33fa3e75a6c14485f4aafe9bc0

                SHA256

                a9ee6545777ce3b4d9fd21543a585f285b06a2a97c64cc43ed1224d2df0abc78

                SHA512

                512effe9c3241384a1f40eb170dff33ddf1fc2a84cfc0903d62bd064776f0e4835cdc235075c7616194c67116e9f34b01a99daad3a111d0a4bcc4706d47ec70e

              • C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-929662420-1054238289-2961194603-1000\699c4b9cdebca7aaea5193cae8a50098_4cfb5922-b036-4c14-9ed1-03c0dad19fbd

                Filesize

                50B

                MD5

                5b63d4dd8c04c88c0e30e494ec6a609a

                SHA1

                884d5a8bdc25fe794dc22ef9518009dcf0069d09

                SHA256

                4d93c22555b3169e5c13716ca59b8b22892c69b3025aea841afe5259698102fd

                SHA512

                15ff8551ac6b9de978050569bcdc26f44dfc06a0eaf445ac70fd45453a21bdafa3e4c8b4857d6a1c3226f4102a639682bdfb71d7b255062fb81a51c9126896cb

              • C:\Windows\SysWOW64\javas.exe

                Filesize

                356KB

                MD5

                48211fdb1c49ea7fcedd4baea0b47e93

                SHA1

                4ef9e88b1e96bc064cbd3e711b314e70d6af711b

                SHA256

                8b15a0d2e0da7be8af7d2367751d3ba86ba643fb0f8fa79ab94ab950e3b52192

                SHA512

                a3976b99fd59b9c77bbd8c72fb766c19a45a17727c6f5e1ea5f87d400eb17ed54c11a6a9f6fc59957c754dc77eedc37e285f3d08036e06abc86618c913078eac

              • C:\Windows\SysWOW64\javas.exe

                Filesize

                356KB

                MD5

                48211fdb1c49ea7fcedd4baea0b47e93

                SHA1

                4ef9e88b1e96bc064cbd3e711b314e70d6af711b

                SHA256

                8b15a0d2e0da7be8af7d2367751d3ba86ba643fb0f8fa79ab94ab950e3b52192

                SHA512

                a3976b99fd59b9c77bbd8c72fb766c19a45a17727c6f5e1ea5f87d400eb17ed54c11a6a9f6fc59957c754dc77eedc37e285f3d08036e06abc86618c913078eac

              • C:\Windows\SysWOW64\javas.exe

                Filesize

                356KB

                MD5

                48211fdb1c49ea7fcedd4baea0b47e93

                SHA1

                4ef9e88b1e96bc064cbd3e711b314e70d6af711b

                SHA256

                8b15a0d2e0da7be8af7d2367751d3ba86ba643fb0f8fa79ab94ab950e3b52192

                SHA512

                a3976b99fd59b9c77bbd8c72fb766c19a45a17727c6f5e1ea5f87d400eb17ed54c11a6a9f6fc59957c754dc77eedc37e285f3d08036e06abc86618c913078eac

              • memory/2192-176-0x0000000000400000-0x0000000000457000-memory.dmp

                Filesize

                348KB

              • memory/2192-175-0x0000000000400000-0x0000000000457000-memory.dmp

                Filesize

                348KB

              • memory/2192-177-0x0000000000400000-0x0000000000457000-memory.dmp

                Filesize

                348KB

              • memory/2208-162-0x0000000024160000-0x00000000241C2000-memory.dmp

                Filesize

                392KB

              • memory/2208-178-0x0000000024160000-0x00000000241C2000-memory.dmp

                Filesize

                392KB

              • memory/2208-164-0x0000000024160000-0x00000000241C2000-memory.dmp

                Filesize

                392KB

              • memory/3876-154-0x00000000240F0000-0x0000000024152000-memory.dmp

                Filesize

                392KB

              • memory/3876-159-0x0000000024160000-0x00000000241C2000-memory.dmp

                Filesize

                392KB

              • memory/3876-163-0x0000000000400000-0x0000000000457000-memory.dmp

                Filesize

                348KB

              • memory/3876-135-0x0000000000400000-0x0000000000457000-memory.dmp

                Filesize

                348KB

              • memory/3876-146-0x0000000024080000-0x00000000240E2000-memory.dmp

                Filesize

                392KB

              • memory/3876-141-0x0000000024010000-0x0000000024072000-memory.dmp

                Filesize

                392KB

              • memory/3876-139-0x0000000000400000-0x0000000000457000-memory.dmp

                Filesize

                348KB

              • memory/3876-138-0x0000000000400000-0x0000000000457000-memory.dmp

                Filesize

                348KB

              • memory/3876-137-0x0000000000400000-0x0000000000457000-memory.dmp

                Filesize

                348KB

              • memory/4616-152-0x0000000024080000-0x00000000240E2000-memory.dmp

                Filesize

                392KB

              • memory/4616-149-0x0000000024080000-0x00000000240E2000-memory.dmp

                Filesize

                392KB