Analysis

  • max time kernel
    189s
  • max time network
    203s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-11-2022 22:57

General

  • Target

    5bb8a43cdc56c5ae2be4541bd4fedb2e219da5546076c4e3a157015a81bbeaf4.exe

  • Size

    439KB

  • MD5

    ad953628e1841dc205a8449319a6366b

  • SHA1

    2d855368aa2dac31256bfed1b47ff82b33890b91

  • SHA256

    5bb8a43cdc56c5ae2be4541bd4fedb2e219da5546076c4e3a157015a81bbeaf4

  • SHA512

    5ba76c28d4b38ca40d69493bcf8d124d0a5c714c7fa66dc925aac8107bc72d5f8805c57d363a79f07785e2e75a54c8e8fa8264665b9b77006c4cc78de6ef5295

  • SSDEEP

    6144:ERdFU+MTOi3WxFj1znJOaX6tLlhoZDJyf+jaqP13Ivi2RSKL5UfP6bjiNMvSgaXw:EFUfDcALjfwUlfUfP6b6RNg0z0MH+S+

Malware Config

Extracted

Family

cybergate

Version

2.6

Botnet

Alaturka

C2

127.0.0.1:81

kralcoder.no-ip.org:81

Mutex

***Msdfsfdrgdrg**

Attributes
  • enable_keylogger

    true

  • enable_message_box

    false

  • ftp_directory

    ./logs/

  • ftp_interval

    30

  • injected_process

    explorer.exe

  • install_dir

    Fonts

  • install_file

    cffmon.exe

  • install_flag

    true

  • keylogger_enable_ftp

    false

  • message_box_caption

    texto da mensagem

  • message_box_title

    título da mensagem

  • password

    abcd1234

  • regkey_hklm

    cffmon

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 18 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 2 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Drops file in Program Files directory 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 2 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 11 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:1704
      • C:\Users\Admin\AppData\Local\Temp\5bb8a43cdc56c5ae2be4541bd4fedb2e219da5546076c4e3a157015a81bbeaf4.exe
        "C:\Users\Admin\AppData\Local\Temp\5bb8a43cdc56c5ae2be4541bd4fedb2e219da5546076c4e3a157015a81bbeaf4.exe"
        2⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1148
        • C:\Users\Admin\AppData\Local\Temp\5bb8a43cdc56c5ae2be4541bd4fedb2e219da5546076c4e3a157015a81bbeaf4.exe
          "C:\Users\Admin\AppData\Local\Temp\5bb8a43cdc56c5ae2be4541bd4fedb2e219da5546076c4e3a157015a81bbeaf4.exe"
          3⤵
          • Adds policy Run key to start application
          • Modifies Installed Components in the registry
          • Adds Run key to start application
          • Drops file in Program Files directory
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of WriteProcessMemory
          PID:5100
          • C:\Windows\SysWOW64\explorer.exe
            explorer.exe
            4⤵
            • Modifies Installed Components in the registry
            PID:2112
          • C:\Program Files\Internet Explorer\iexplore.exe
            "C:\Program Files\Internet Explorer\iexplore.exe"
            4⤵
              PID:516
            • C:\Users\Admin\AppData\Local\Temp\5bb8a43cdc56c5ae2be4541bd4fedb2e219da5546076c4e3a157015a81bbeaf4.exe
              "C:\Users\Admin\AppData\Local\Temp\5bb8a43cdc56c5ae2be4541bd4fedb2e219da5546076c4e3a157015a81bbeaf4.exe"
              4⤵
              • Checks computer location settings
              • Drops file in Program Files directory
              • Modifies registry class
              • Suspicious behavior: GetForegroundWindowSpam
              • Suspicious use of AdjustPrivilegeToken
              PID:4432
              • C:\Program Files (x86)\Fonts\cffmon.exe
                "C:\Program Files (x86)\Fonts\cffmon.exe"
                5⤵
                • Executes dropped EXE
                • Suspicious use of SetThreadContext
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                PID:2828
                • C:\Program Files (x86)\Fonts\cffmon.exe
                  "C:\Program Files (x86)\Fonts\cffmon.exe"
                  6⤵
                  • Executes dropped EXE
                  PID:2260
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -u -p 2260 -s 532
                    7⤵
                    • Program crash
                    PID:4200
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -u -p 2260 -s 532
                    7⤵
                    • Program crash
                    PID:2128
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2260 -ip 2260
        1⤵
          PID:3860

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Program Files (x86)\Fonts\cffmon.exe

          Filesize

          439KB

          MD5

          ad953628e1841dc205a8449319a6366b

          SHA1

          2d855368aa2dac31256bfed1b47ff82b33890b91

          SHA256

          5bb8a43cdc56c5ae2be4541bd4fedb2e219da5546076c4e3a157015a81bbeaf4

          SHA512

          5ba76c28d4b38ca40d69493bcf8d124d0a5c714c7fa66dc925aac8107bc72d5f8805c57d363a79f07785e2e75a54c8e8fa8264665b9b77006c4cc78de6ef5295

        • C:\Program Files (x86)\Fonts\cffmon.exe

          Filesize

          439KB

          MD5

          ad953628e1841dc205a8449319a6366b

          SHA1

          2d855368aa2dac31256bfed1b47ff82b33890b91

          SHA256

          5bb8a43cdc56c5ae2be4541bd4fedb2e219da5546076c4e3a157015a81bbeaf4

          SHA512

          5ba76c28d4b38ca40d69493bcf8d124d0a5c714c7fa66dc925aac8107bc72d5f8805c57d363a79f07785e2e75a54c8e8fa8264665b9b77006c4cc78de6ef5295

        • C:\Program Files (x86)\Fonts\cffmon.exe

          Filesize

          439KB

          MD5

          ad953628e1841dc205a8449319a6366b

          SHA1

          2d855368aa2dac31256bfed1b47ff82b33890b91

          SHA256

          5bb8a43cdc56c5ae2be4541bd4fedb2e219da5546076c4e3a157015a81bbeaf4

          SHA512

          5ba76c28d4b38ca40d69493bcf8d124d0a5c714c7fa66dc925aac8107bc72d5f8805c57d363a79f07785e2e75a54c8e8fa8264665b9b77006c4cc78de6ef5295

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

          Filesize

          229KB

          MD5

          c21c97e8b6cfddee8b0abed72c58c602

          SHA1

          ae3789e8101cdb5eec94169c601b86a9b9c2ef44

          SHA256

          e9aeabc428e9650abac765172e2dc3165f4aa5e70a24d321daa4e93ce8afa398

          SHA512

          1f84896b4fe20a4a634c32af7247b11db0c4274b723e189de0288e5b2cff4a837ef472bc34a61dd30d7eac1befc47cc023ba95fb43a2a8f3a196dc5824f4023b

        • memory/1148-132-0x00000000753F0000-0x00000000759A1000-memory.dmp

          Filesize

          5.7MB

        • memory/1148-138-0x00000000753F0000-0x00000000759A1000-memory.dmp

          Filesize

          5.7MB

        • memory/2112-149-0x0000000024080000-0x00000000240E2000-memory.dmp

          Filesize

          392KB

        • memory/2112-175-0x0000000024080000-0x00000000240E2000-memory.dmp

          Filesize

          392KB

        • memory/2112-145-0x0000000000000000-mapping.dmp

        • memory/2112-150-0x0000000024080000-0x00000000240E2000-memory.dmp

          Filesize

          392KB

        • memory/2260-171-0x0000000000400000-0x0000000000455000-memory.dmp

          Filesize

          340KB

        • memory/2260-167-0x0000000000000000-mapping.dmp

        • memory/2260-174-0x0000000000400000-0x0000000000455000-memory.dmp

          Filesize

          340KB

        • memory/2260-172-0x0000000000400000-0x0000000000455000-memory.dmp

          Filesize

          340KB

        • memory/2828-173-0x00000000753F0000-0x00000000759A1000-memory.dmp

          Filesize

          5.7MB

        • memory/2828-177-0x00000000753F0000-0x00000000759A1000-memory.dmp

          Filesize

          5.7MB

        • memory/2828-165-0x0000000000000000-mapping.dmp

        • memory/4200-178-0x0000000000000000-mapping.dmp

        • memory/4432-158-0x0000000000000000-mapping.dmp

        • memory/4432-162-0x0000000024160000-0x00000000241C2000-memory.dmp

          Filesize

          392KB

        • memory/4432-164-0x0000000024160000-0x00000000241C2000-memory.dmp

          Filesize

          392KB

        • memory/4432-176-0x0000000024160000-0x00000000241C2000-memory.dmp

          Filesize

          392KB

        • memory/5100-154-0x00000000240F0000-0x0000000024152000-memory.dmp

          Filesize

          392KB

        • memory/5100-136-0x0000000000400000-0x0000000000455000-memory.dmp

          Filesize

          340KB

        • memory/5100-134-0x0000000000400000-0x0000000000455000-memory.dmp

          Filesize

          340KB

        • memory/5100-139-0x0000000000400000-0x0000000000455000-memory.dmp

          Filesize

          340KB

        • memory/5100-146-0x0000000024080000-0x00000000240E2000-memory.dmp

          Filesize

          392KB

        • memory/5100-141-0x0000000024010000-0x0000000024072000-memory.dmp

          Filesize

          392KB

        • memory/5100-133-0x0000000000000000-mapping.dmp

        • memory/5100-137-0x0000000000400000-0x0000000000455000-memory.dmp

          Filesize

          340KB

        • memory/5100-163-0x0000000000400000-0x0000000000455000-memory.dmp

          Filesize

          340KB

        • memory/5100-159-0x0000000024160000-0x00000000241C2000-memory.dmp

          Filesize

          392KB