Analysis

  • max time kernel
    152s
  • max time network
    189s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/10/2022, 15:09

General

  • Target

    cd0ef5ef12378ef44fdc7ca3812a457d2597279f8b16bae13016592577ccb35f.exe

  • Size

    276KB

  • MD5

    5d73b98438b1fef576c86b415af2f170

  • SHA1

    904471ddba51155a14acea5b2ef94503feadcfe0

  • SHA256

    cd0ef5ef12378ef44fdc7ca3812a457d2597279f8b16bae13016592577ccb35f

  • SHA512

    b026cdaac09840e857f951a0a6f1f319154d0b31810d8803e8fe737d1a9aaa4e92186c41f5cd4ad50dba321c968dd428870893f2d282abcc563bfa2086905e22

  • SSDEEP

    6144:Zk4qmUK2pJ6ll31DQnSjS5uvi1GPx2ro/cuL7TeFiprf363:+9J6j1JjSs+SJ/5L7Tvrf3

Malware Config

Extracted

Family

cybergate

Version

2.6

Botnet

becool

C2

vaye.no-ip.org:1007

Mutex

--MUTEX--

Attributes
  • enable_keylogger

    true

  • enable_message_box

    false

  • ftp_directory

    ./logs/

  • ftp_interval

    30

  • injected_process

    explorer.exe

  • install_dir

    spynet

  • install_file

    server.exe

  • install_flag

    true

  • keylogger_enable_ftp

    false

  • message_box_caption

    texto da mensagem

  • message_box_title

    título da mensagem

  • password

    123456

  • 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 1 IoCs
  • Modifies Installed Components in the registry 2 TTPs 4 IoCs
  • UPX packed file 14 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 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 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 WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:2376
      • C:\Users\Admin\AppData\Local\Temp\cd0ef5ef12378ef44fdc7ca3812a457d2597279f8b16bae13016592577ccb35f.exe
        "C:\Users\Admin\AppData\Local\Temp\cd0ef5ef12378ef44fdc7ca3812a457d2597279f8b16bae13016592577ccb35f.exe"
        2⤵
        • 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:3328
        • C:\Windows\SysWOW64\explorer.exe
          explorer.exe
          3⤵
          • Modifies Installed Components in the registry
          PID:3740
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe"
          3⤵
            PID:2148
          • C:\Users\Admin\AppData\Local\Temp\cd0ef5ef12378ef44fdc7ca3812a457d2597279f8b16bae13016592577ccb35f.exe
            "C:\Users\Admin\AppData\Local\Temp\cd0ef5ef12378ef44fdc7ca3812a457d2597279f8b16bae13016592577ccb35f.exe"
            3⤵
            • Checks computer location settings
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of AdjustPrivilegeToken
            PID:4612
            • C:\Windows\SysWOW64\spynet\server.exe
              "C:\Windows\system32\spynet\server.exe"
              4⤵
              • Executes dropped EXE
              PID:1992
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 1992 -s 564
                5⤵
                • Program crash
                PID:916
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1992 -ip 1992
        1⤵
          PID:632

        Network

              MITRE ATT&CK Enterprise v6

              Replay Monitor

              Loading Replay Monitor...

              Downloads

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

                Filesize

                229KB

                MD5

                bd8b8cc269150aaff8a18d5cf26090f5

                SHA1

                88bf2d762a1f4e0367d68461936f3b69a8f6d42a

                SHA256

                d5215efa746d19a04c8bd8f082d6b273a1442cf6f3e162194c33066068da5db9

                SHA512

                133f75b2c0f50cabc46882cdc91191dce5b104a7a2e71fdb7a9e88e7d530da2fb10eca9c9801c74c5b527b1b1ed8c5c649c3e656f9f78be607454827013d7c46

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

                Filesize

                276KB

                MD5

                5d73b98438b1fef576c86b415af2f170

                SHA1

                904471ddba51155a14acea5b2ef94503feadcfe0

                SHA256

                cd0ef5ef12378ef44fdc7ca3812a457d2597279f8b16bae13016592577ccb35f

                SHA512

                b026cdaac09840e857f951a0a6f1f319154d0b31810d8803e8fe737d1a9aaa4e92186c41f5cd4ad50dba321c968dd428870893f2d282abcc563bfa2086905e22

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

                Filesize

                276KB

                MD5

                5d73b98438b1fef576c86b415af2f170

                SHA1

                904471ddba51155a14acea5b2ef94503feadcfe0

                SHA256

                cd0ef5ef12378ef44fdc7ca3812a457d2597279f8b16bae13016592577ccb35f

                SHA512

                b026cdaac09840e857f951a0a6f1f319154d0b31810d8803e8fe737d1a9aaa4e92186c41f5cd4ad50dba321c968dd428870893f2d282abcc563bfa2086905e22

              • memory/1992-159-0x0000000000400000-0x0000000000457000-memory.dmp

                Filesize

                348KB

              • memory/3328-156-0x0000000000400000-0x0000000000457000-memory.dmp

                Filesize

                348KB

              • memory/3328-134-0x0000000024010000-0x0000000024072000-memory.dmp

                Filesize

                392KB

              • memory/3328-139-0x0000000024080000-0x00000000240E2000-memory.dmp

                Filesize

                392KB

              • memory/3328-132-0x0000000000400000-0x0000000000457000-memory.dmp

                Filesize

                348KB

              • memory/3328-147-0x00000000240F0000-0x0000000024152000-memory.dmp

                Filesize

                392KB

              • memory/3328-152-0x0000000024160000-0x00000000241C2000-memory.dmp

                Filesize

                392KB

              • memory/3740-142-0x0000000024080000-0x00000000240E2000-memory.dmp

                Filesize

                392KB

              • memory/3740-145-0x0000000024080000-0x00000000240E2000-memory.dmp

                Filesize

                392KB

              • memory/4612-155-0x0000000024160000-0x00000000241C2000-memory.dmp

                Filesize

                392KB

              • memory/4612-160-0x0000000000400000-0x0000000000457000-memory.dmp

                Filesize

                348KB

              • memory/4612-161-0x0000000024160000-0x00000000241C2000-memory.dmp

                Filesize

                392KB