Analysis

  • max time kernel
    158s
  • max time network
    172s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-11-2022 15:16

General

  • Target

    4e9af956b114074442f89c20a410ec1002580de4a9726b5b406aea404a0d28fc.exe

  • Size

    270KB

  • MD5

    6e969c2d51c04dbc054adcd92c51f069

  • SHA1

    e5de4d368974e24fd509096f330d503a215d3926

  • SHA256

    4e9af956b114074442f89c20a410ec1002580de4a9726b5b406aea404a0d28fc

  • SHA512

    d5c33258b425ca9d225b51718d5514c614462e60a49e97d088b22e58bead33c32cd34a66ab02655e88d7aeb9e31b37ec8d39594455c7659c4f5cdd50b57f9ed6

  • SSDEEP

    6144:XCMuxjVtFlmi1xqOxrhNc8qjm819Glwgnq5pkudOYxLmO5:SfRfjmi1x5x1Nojm8/GSn5pndtxLmU

Malware Config

Extracted

Family

cybergate

Version

v1.07.5

Botnet

nicc

C2

127.0.0.1:999

127.0.0.1:81

Mutex

4MW8F0NI2NT675

Attributes
  • enable_keylogger

    true

  • enable_message_box

    false

  • ftp_directory

    ./logs/

  • ftp_interval

    30

  • injected_process

    explorer.exe

  • install_dir

    WindowsUpdate

  • install_file

    WindowsUpdate.DLL

  • install_flag

    true

  • keylogger_enable_ftp

    false

  • message_box_caption

    Remote Administration anywhere in the world.

  • message_box_title

    CyberGate

  • password

    12345

  • 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
  • Modifies Installed Components in the registry 2 TTPs 4 IoCs
  • UPX packed file 13 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Adds Run key to start application 2 TTPs 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:2804
      • C:\Users\Admin\AppData\Local\Temp\4e9af956b114074442f89c20a410ec1002580de4a9726b5b406aea404a0d28fc.exe
        "C:\Users\Admin\AppData\Local\Temp\4e9af956b114074442f89c20a410ec1002580de4a9726b5b406aea404a0d28fc.exe"
        2⤵
        • Adds policy Run key to start application
        • Modifies Installed Components in the registry
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of WriteProcessMemory
        PID:2604
        • C:\Windows\SysWOW64\explorer.exe
          explorer.exe
          3⤵
          • Modifies Installed Components in the registry
          • Suspicious use of AdjustPrivilegeToken
          PID:1300
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe"
          3⤵
            PID:2220
          • C:\Users\Admin\AppData\Local\Temp\4e9af956b114074442f89c20a410ec1002580de4a9726b5b406aea404a0d28fc.exe
            "C:\Users\Admin\AppData\Local\Temp\4e9af956b114074442f89c20a410ec1002580de4a9726b5b406aea404a0d28fc.exe"
            3⤵
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of AdjustPrivilegeToken
            PID:2836

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      Persistence

      Registry Run Keys / Startup Folder

      3
      T1060

      Defense Evasion

      Modify Registry

      3
      T1112

      Discovery

      System Information Discovery

      1
      T1082

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\Admin2.txt
        Filesize

        224KB

        MD5

        03107e494dcf43cf17a1eb08dd6da216

        SHA1

        54fd264860b99fc44e98c1e82d6c92aabd400bca

        SHA256

        a9db84416294cf44cfcd89a87a0d1f11794e8300c3dbc7caee5e45556f57412a

        SHA512

        b395e6e048c9f374a4e2b7ee5dd0572a984628a2efb9499271ac5d53d3961c3e21864e752c7e70eafcba1ed677f713ea9acf488e55e60fb085bf4227769f0400

      • C:\WindowsUpdate\WindowsUpdate.DLL
        Filesize

        270KB

        MD5

        6e969c2d51c04dbc054adcd92c51f069

        SHA1

        e5de4d368974e24fd509096f330d503a215d3926

        SHA256

        4e9af956b114074442f89c20a410ec1002580de4a9726b5b406aea404a0d28fc

        SHA512

        d5c33258b425ca9d225b51718d5514c614462e60a49e97d088b22e58bead33c32cd34a66ab02655e88d7aeb9e31b37ec8d39594455c7659c4f5cdd50b57f9ed6

      • memory/1300-145-0x0000000010480000-0x00000000104E5000-memory.dmp
        Filesize

        404KB

      • memory/1300-138-0x0000000000000000-mapping.dmp
      • memory/1300-142-0x0000000010480000-0x00000000104E5000-memory.dmp
        Filesize

        404KB

      • memory/2604-147-0x00000000104F0000-0x0000000010555000-memory.dmp
        Filesize

        404KB

      • memory/2604-139-0x0000000010480000-0x00000000104E5000-memory.dmp
        Filesize

        404KB

      • memory/2604-134-0x0000000010410000-0x0000000010475000-memory.dmp
        Filesize

        404KB

      • memory/2604-132-0x0000000000400000-0x0000000000456000-memory.dmp
        Filesize

        344KB

      • memory/2604-152-0x0000000010560000-0x00000000105C5000-memory.dmp
        Filesize

        404KB

      • memory/2604-156-0x0000000000400000-0x0000000000456000-memory.dmp
        Filesize

        344KB

      • memory/2836-151-0x0000000000000000-mapping.dmp
      • memory/2836-155-0x0000000010560000-0x00000000105C5000-memory.dmp
        Filesize

        404KB

      • memory/2836-157-0x0000000000400000-0x0000000000456000-memory.dmp
        Filesize

        344KB

      • memory/2836-158-0x0000000010560000-0x00000000105C5000-memory.dmp
        Filesize

        404KB

      • memory/2836-159-0x0000000010560000-0x00000000105C5000-memory.dmp
        Filesize

        404KB