Analysis

  • max time kernel
    151s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-09-2022 04:19

General

  • Target

    caa00c01472d615bda4509e02ae743ff2693eb249ed971f964f8802c77561ae2.exe

  • Size

    273KB

  • MD5

    27638e293feea1c3232807fb92b6ee81

  • SHA1

    5ed8e3ddd168b61b0ace2db20e772f2afaee6636

  • SHA256

    caa00c01472d615bda4509e02ae743ff2693eb249ed971f964f8802c77561ae2

  • SHA512

    dd6ed7ebd6c19e36226a6ceda354a91b032bdb006e727c21268291d5ea7de41b1dcab5ac4160fbb5a7b4dd0f852ee6d7c3fd038c8c2e9fc4c4b52579433eccd9

  • SSDEEP

    6144:P3LZvsxZZQttyCVxaWYSdMU/77hlruc6XmDoTbcI7CPPdx:v1eAtpVxagMU/plruchDofAPb

Malware Config

Extracted

Family

cybergate

Version

v1.02.0

Botnet

cyber

C2

127.0.0.1:82

Mutex

SB52SV0Y2C1Q5P

Attributes
  • enable_keylogger

    true

  • enable_message_box

    false

  • ftp_directory

    ./logs/

  • ftp_interval

    30

  • injected_process

    csrss.exe

  • install_dir

    Winbooterr

  • install_file

    Svchost.exe

  • install_flag

    true

  • keylogger_enable_ftp

    false

  • message_box_caption

    Remote Administration anywhere in the world.

  • message_box_title

    CyberGate

  • password

    456456

  • 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 9 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 4 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: EnumeratesProcesses 4 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:2204
      • C:\Users\Admin\AppData\Local\Temp\caa00c01472d615bda4509e02ae743ff2693eb249ed971f964f8802c77561ae2.exe
        "C:\Users\Admin\AppData\Local\Temp\caa00c01472d615bda4509e02ae743ff2693eb249ed971f964f8802c77561ae2.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:4800
        • C:\Windows\SysWOW64\explorer.exe
          explorer.exe
          3⤵
          • Modifies Installed Components in the registry
          PID:5064
        • C:\Users\Admin\AppData\Local\Temp\caa00c01472d615bda4509e02ae743ff2693eb249ed971f964f8802c77561ae2.exe
          "C:\Users\Admin\AppData\Local\Temp\caa00c01472d615bda4509e02ae743ff2693eb249ed971f964f8802c77561ae2.exe"
          3⤵
          • Checks computer location settings
          • Drops file in System32 directory
          • Modifies registry class
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of AdjustPrivilegeToken
          PID:2120
          • C:\Windows\SysWOW64\Winbooterr\Svchost.exe
            "C:\Windows\system32\Winbooterr\Svchost.exe"
            4⤵
            • Executes dropped EXE
            PID:1376
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 1376 -s 568
              5⤵
              • Program crash
              PID:5012
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 1376 -ip 1376
      1⤵
        PID:4844

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        219KB

        MD5

        0909d7b0725b0ddb530726541e5a933b

        SHA1

        f49d203e4c6f53a6923c3687febedfd17236633d

        SHA256

        0e23084fe0bbdc6430af95bc158530eb2c16da46467dd5ac72e92c59a66ad51a

        SHA512

        75702c40e1fb43381c31d28bb6ec4d1d5ee994a8b5b26b2821e2604b08943bed6362a79518e2dbd210655c9b622a3573f2d15babbd9d4bfb6079410b309280c6

      • C:\Windows\SysWOW64\Winbooterr\Svchost.exe

        Filesize

        273KB

        MD5

        27638e293feea1c3232807fb92b6ee81

        SHA1

        5ed8e3ddd168b61b0ace2db20e772f2afaee6636

        SHA256

        caa00c01472d615bda4509e02ae743ff2693eb249ed971f964f8802c77561ae2

        SHA512

        dd6ed7ebd6c19e36226a6ceda354a91b032bdb006e727c21268291d5ea7de41b1dcab5ac4160fbb5a7b4dd0f852ee6d7c3fd038c8c2e9fc4c4b52579433eccd9

      • C:\Windows\SysWOW64\Winbooterr\Svchost.exe

        Filesize

        273KB

        MD5

        27638e293feea1c3232807fb92b6ee81

        SHA1

        5ed8e3ddd168b61b0ace2db20e772f2afaee6636

        SHA256

        caa00c01472d615bda4509e02ae743ff2693eb249ed971f964f8802c77561ae2

        SHA512

        dd6ed7ebd6c19e36226a6ceda354a91b032bdb006e727c21268291d5ea7de41b1dcab5ac4160fbb5a7b4dd0f852ee6d7c3fd038c8c2e9fc4c4b52579433eccd9

      • memory/1376-156-0x0000000000000000-mapping.dmp

      • memory/2120-158-0x00000000240D0000-0x000000002412F000-memory.dmp

        Filesize

        380KB

      • memory/2120-150-0x0000000000000000-mapping.dmp

      • memory/2120-154-0x00000000240D0000-0x000000002412F000-memory.dmp

        Filesize

        380KB

      • memory/2120-155-0x00000000240D0000-0x000000002412F000-memory.dmp

        Filesize

        380KB

      • memory/4800-138-0x0000000024070000-0x00000000240CF000-memory.dmp

        Filesize

        380KB

      • memory/4800-133-0x0000000024010000-0x000000002406F000-memory.dmp

        Filesize

        380KB

      • memory/4800-146-0x0000000002050000-0x00000000020AF000-memory.dmp

        Filesize

        380KB

      • memory/4800-151-0x00000000240D0000-0x000000002412F000-memory.dmp

        Filesize

        380KB

      • memory/5064-141-0x0000000024070000-0x00000000240CF000-memory.dmp

        Filesize

        380KB

      • memory/5064-144-0x0000000024070000-0x00000000240CF000-memory.dmp

        Filesize

        380KB

      • memory/5064-137-0x0000000000000000-mapping.dmp