Analysis

  • max time kernel
    152s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/10/2022, 20:25

General

  • Target

    c5e1c94fc953992cb5d5711a9feac9c2e5b2e465f61c196c1d28422c7a64a43c.exe

  • Size

    404KB

  • MD5

    922ebad17a820a461a2d521815beb87b

  • SHA1

    3e84f8e30e0e89ba4f2f65b41c9803e8295784ef

  • SHA256

    c5e1c94fc953992cb5d5711a9feac9c2e5b2e465f61c196c1d28422c7a64a43c

  • SHA512

    8422a7d8c8f91faacaa7aecb9183e78af4df50adc4b3ff903c54c04eff9e33c4a9a04e1ca49874d9d68d0cd9fd42aa40abcd37127f2ecebd7f59dd116d7b2e54

  • SSDEEP

    6144:lGI9p8LqO9h6zhTreVSx1yThvexmhYgmx1Ve8dNwtDP:lGI9OL99h6zZreVSxGhOBe8dNwtD

Malware Config

Extracted

Family

cybergate

Version

v1.04.8

Botnet

vic

C2

1337brocki1337.ath.cx:8080

Mutex

G6YRG05L20PGI4

Attributes
  • enable_keylogger

    false

  • enable_message_box

    false

  • ftp_directory

    ./logs/

  • ftp_interval

    30

  • injected_process

    explorer.exe

  • install_dir

    Defender

  • install_file

    def.exe

  • install_flag

    true

  • keylogger_enable_ftp

    false

  • message_box_caption

    Remote Administration anywhere in the world.

  • message_box_title

    CyberGate

  • password

    omg13371337

  • 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 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.

  • Adds Run key to start application 2 TTPs 4 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Drops file in Program Files directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c5e1c94fc953992cb5d5711a9feac9c2e5b2e465f61c196c1d28422c7a64a43c.exe
    "C:\Users\Admin\AppData\Local\Temp\c5e1c94fc953992cb5d5711a9feac9c2e5b2e465f61c196c1d28422c7a64a43c.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4916
    • C:\Users\Admin\AppData\Local\Temp\c5e1c94fc953992cb5d5711a9feac9c2e5b2e465f61c196c1d28422c7a64a43c.exe
      C:\Users\Admin\AppData\Local\Temp\c5e1c94fc953992cb5d5711a9feac9c2e5b2e465f61c196c1d28422c7a64a43c.exe
      2⤵
      • 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 WriteProcessMemory
      PID:4204
      • C:\Program Files\Internet Explorer\iexplore.exe
        "C:\Program Files\Internet Explorer\iexplore.exe"
        3⤵
          PID:4124
        • C:\Users\Admin\AppData\Local\Temp\c5e1c94fc953992cb5d5711a9feac9c2e5b2e465f61c196c1d28422c7a64a43c.exe
          "C:\Users\Admin\AppData\Local\Temp\c5e1c94fc953992cb5d5711a9feac9c2e5b2e465f61c196c1d28422c7a64a43c.exe"
          3⤵
          • Checks computer location settings
          • Suspicious use of AdjustPrivilegeToken
          PID:3896
          • C:\Program Files (x86)\Defender\def.exe
            "C:\Program Files (x86)\Defender\def.exe"
            4⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Drops file in Program Files directory
            • Suspicious use of SetWindowsHookEx
            PID:1192
            • C:\Program Files (x86)\Defender\def.exe
              "C:\Program Files (x86)\Defender\def.exe"
              5⤵
              • Executes dropped EXE
              PID:2168

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Program Files (x86)\Defender\def.exe

            Filesize

            404KB

            MD5

            922ebad17a820a461a2d521815beb87b

            SHA1

            3e84f8e30e0e89ba4f2f65b41c9803e8295784ef

            SHA256

            c5e1c94fc953992cb5d5711a9feac9c2e5b2e465f61c196c1d28422c7a64a43c

            SHA512

            8422a7d8c8f91faacaa7aecb9183e78af4df50adc4b3ff903c54c04eff9e33c4a9a04e1ca49874d9d68d0cd9fd42aa40abcd37127f2ecebd7f59dd116d7b2e54

          • C:\Program Files (x86)\Defender\def.exe

            Filesize

            404KB

            MD5

            922ebad17a820a461a2d521815beb87b

            SHA1

            3e84f8e30e0e89ba4f2f65b41c9803e8295784ef

            SHA256

            c5e1c94fc953992cb5d5711a9feac9c2e5b2e465f61c196c1d28422c7a64a43c

            SHA512

            8422a7d8c8f91faacaa7aecb9183e78af4df50adc4b3ff903c54c04eff9e33c4a9a04e1ca49874d9d68d0cd9fd42aa40abcd37127f2ecebd7f59dd116d7b2e54

          • C:\Program Files (x86)\Defender\def.exe

            Filesize

            404KB

            MD5

            922ebad17a820a461a2d521815beb87b

            SHA1

            3e84f8e30e0e89ba4f2f65b41c9803e8295784ef

            SHA256

            c5e1c94fc953992cb5d5711a9feac9c2e5b2e465f61c196c1d28422c7a64a43c

            SHA512

            8422a7d8c8f91faacaa7aecb9183e78af4df50adc4b3ff903c54c04eff9e33c4a9a04e1ca49874d9d68d0cd9fd42aa40abcd37127f2ecebd7f59dd116d7b2e54

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

            Filesize

            222KB

            MD5

            820340146a420a6e0d77c56f6dadc6c3

            SHA1

            f1b72690ae7176093ac122292c500c7c8df1b1e4

            SHA256

            1d65167e139bbe98beef30045e40e64f130445e92fc113a15678320d482577bd

            SHA512

            67085fe7dc797050ffdfedc9abb4073adb6cfe2a168ed22529f244e1373143f1b86a55fb42add476bdde8d663552462c2f21b3f121e9bee93af1dba898d70581

          • memory/2168-163-0x0000000000400000-0x000000000044E000-memory.dmp

            Filesize

            312KB

          • memory/2168-162-0x0000000000400000-0x000000000044E000-memory.dmp

            Filesize

            312KB

          • memory/2168-161-0x0000000000400000-0x000000000044E000-memory.dmp

            Filesize

            312KB

          • memory/3896-150-0x0000000010480000-0x00000000104E1000-memory.dmp

            Filesize

            388KB

          • memory/3896-148-0x0000000010480000-0x00000000104E1000-memory.dmp

            Filesize

            388KB

          • memory/3896-164-0x0000000010480000-0x00000000104E1000-memory.dmp

            Filesize

            388KB

          • memory/4204-149-0x0000000000400000-0x000000000044E000-memory.dmp

            Filesize

            312KB

          • memory/4204-145-0x0000000010480000-0x00000000104E1000-memory.dmp

            Filesize

            388KB

          • memory/4204-140-0x0000000010410000-0x0000000010471000-memory.dmp

            Filesize

            388KB

          • memory/4204-138-0x0000000000400000-0x000000000044E000-memory.dmp

            Filesize

            312KB

          • memory/4204-137-0x0000000000400000-0x000000000044E000-memory.dmp

            Filesize

            312KB

          • memory/4204-136-0x0000000000400000-0x000000000044E000-memory.dmp

            Filesize

            312KB

          • memory/4204-135-0x0000000000400000-0x000000000044E000-memory.dmp

            Filesize

            312KB