Analysis

  • max time kernel
    151s
  • max time network
    156s
  • 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, 19:32

General

  • Target

    ab89785ce8d745bb9dd2c8d23519ed1a4e503938d3a496d059f786219ae54203.exe

  • Size

    406KB

  • MD5

    825a5d844ccae6f1176bcdb35c26e1c0

  • SHA1

    f8fdb71e491d31a9ed09ad0879768d12f7d53d94

  • SHA256

    ab89785ce8d745bb9dd2c8d23519ed1a4e503938d3a496d059f786219ae54203

  • SHA512

    4f4cbd34fc3567f95cd87e283251eeb84ae1d665f90524961c41d39d45b3a78e98bc2a1c3fcf49a1137d66ee4b62673dfa87269553cabf2dd871c1c4be24ce0f

  • SSDEEP

    12288:sYy9aRynHwcCuLEY+7jJib2nAPnVk+G3NYn:pyHXCMQ7diynlh3NYn

Malware Config

Extracted

Family

cybergate

Version

2.6

Botnet

CryptoSuite

C2

otocukk.no-ip.biz:443

Mutex

M30EFVFW

Attributes
  • enable_keylogger

    true

  • enable_message_box

    false

  • ftp_directory

    ./logs/

  • ftp_interval

    30

  • injected_process

    explorer.exe

  • install_dir

    java\upgrade\

  • install_file

    javaing.exe

  • install_flag

    true

  • keylogger_enable_ftp

    false

  • message_box_caption

    Tester

  • message_box_title

    Test

  • password

    yln12345

  • regkey_hkcu

    javaing

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
  • 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 2 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Drops file in Program Files directory 5 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 8 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:652
      • C:\Users\Admin\AppData\Local\Temp\ab89785ce8d745bb9dd2c8d23519ed1a4e503938d3a496d059f786219ae54203.exe
        "C:\Users\Admin\AppData\Local\Temp\ab89785ce8d745bb9dd2c8d23519ed1a4e503938d3a496d059f786219ae54203.exe"
        2⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:1724
        • C:\Users\Admin\AppData\Local\Temp\ab89785ce8d745bb9dd2c8d23519ed1a4e503938d3a496d059f786219ae54203.exe
          C:\Users\Admin\AppData\Local\Temp\ab89785ce8d745bb9dd2c8d23519ed1a4e503938d3a496d059f786219ae54203.exe
          3⤵
          • Adds policy Run key to start application
          • Adds Run key to start application
          • Drops file in Program Files directory
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of WriteProcessMemory
          PID:3608
          • C:\Windows\SysWOW64\explorer.exe
            explorer.exe
            4⤵
              PID:3344
            • C:\Program Files\Internet Explorer\iexplore.exe
              "C:\Program Files\Internet Explorer\iexplore.exe"
              4⤵
                PID:3980
              • C:\Users\Admin\AppData\Local\Temp\ab89785ce8d745bb9dd2c8d23519ed1a4e503938d3a496d059f786219ae54203.exe
                "C:\Users\Admin\AppData\Local\Temp\ab89785ce8d745bb9dd2c8d23519ed1a4e503938d3a496d059f786219ae54203.exe"
                4⤵
                • Checks computer location settings
                • Drops file in Program Files directory
                • Modifies registry class
                • Suspicious behavior: GetForegroundWindowSpam
                • Suspicious use of AdjustPrivilegeToken
                PID:5028
                • C:\Program Files (x86)\java\upgrade\javaing.exe
                  "C:\Program Files (x86)\java\upgrade\javaing.exe"
                  5⤵
                  • Executes dropped EXE
                  • Suspicious use of SetThreadContext
                  • Drops file in Program Files directory
                  • Suspicious behavior: EnumeratesProcesses
                  PID:928
                  • C:\Program Files (x86)\java\upgrade\javaing.exe
                    "C:\Program Files (x86)\java\upgrade\javaing.exe"
                    6⤵
                    • Executes dropped EXE
                    PID:5040
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -u -p 5040 -s 532
                      7⤵
                      • Program crash
                      PID:4232
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 5040 -ip 5040
          1⤵
            PID:2864

          Network

                MITRE ATT&CK Enterprise v6

                Replay Monitor

                Loading Replay Monitor...

                Downloads

                • C:\Program Files (x86)\java\upgrade\javaing.exe

                  Filesize

                  406KB

                  MD5

                  825a5d844ccae6f1176bcdb35c26e1c0

                  SHA1

                  f8fdb71e491d31a9ed09ad0879768d12f7d53d94

                  SHA256

                  ab89785ce8d745bb9dd2c8d23519ed1a4e503938d3a496d059f786219ae54203

                  SHA512

                  4f4cbd34fc3567f95cd87e283251eeb84ae1d665f90524961c41d39d45b3a78e98bc2a1c3fcf49a1137d66ee4b62673dfa87269553cabf2dd871c1c4be24ce0f

                • C:\Program Files (x86)\java\upgrade\javaing.exe

                  Filesize

                  406KB

                  MD5

                  825a5d844ccae6f1176bcdb35c26e1c0

                  SHA1

                  f8fdb71e491d31a9ed09ad0879768d12f7d53d94

                  SHA256

                  ab89785ce8d745bb9dd2c8d23519ed1a4e503938d3a496d059f786219ae54203

                  SHA512

                  4f4cbd34fc3567f95cd87e283251eeb84ae1d665f90524961c41d39d45b3a78e98bc2a1c3fcf49a1137d66ee4b62673dfa87269553cabf2dd871c1c4be24ce0f

                • C:\Program Files (x86)\java\upgrade\javaing.exe

                  Filesize

                  406KB

                  MD5

                  825a5d844ccae6f1176bcdb35c26e1c0

                  SHA1

                  f8fdb71e491d31a9ed09ad0879768d12f7d53d94

                  SHA256

                  ab89785ce8d745bb9dd2c8d23519ed1a4e503938d3a496d059f786219ae54203

                  SHA512

                  4f4cbd34fc3567f95cd87e283251eeb84ae1d665f90524961c41d39d45b3a78e98bc2a1c3fcf49a1137d66ee4b62673dfa87269553cabf2dd871c1c4be24ce0f

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

                  Filesize

                  229KB

                  MD5

                  c49d7f49a566969a9a265397c768ca11

                  SHA1

                  695e4dff4e0bdfce5beb065415b30da38215cbd1

                  SHA256

                  2316df904c22a41779717e18353c63c2a29da1e2a0510cf470e5053ee76aaf11

                  SHA512

                  a9fa4563c70425fee750858626b95ceccebada781a8062390f12afe462286f699e7d4e45d7347039f96ea565c775eafac92551373a0c86273757ba23f9c4355b

                • memory/1724-136-0x0000000002200000-0x0000000002204000-memory.dmp

                  Filesize

                  16KB

                • memory/3344-147-0x0000000024080000-0x00000000240E2000-memory.dmp

                  Filesize

                  392KB

                • memory/3344-150-0x0000000024080000-0x00000000240E2000-memory.dmp

                  Filesize

                  392KB

                • memory/3608-139-0x0000000024010000-0x0000000024072000-memory.dmp

                  Filesize

                  392KB

                • memory/3608-135-0x0000000000400000-0x0000000000450000-memory.dmp

                  Filesize

                  320KB

                • memory/3608-137-0x0000000000400000-0x0000000000450000-memory.dmp

                  Filesize

                  320KB

                • memory/3608-152-0x00000000240F0000-0x0000000024152000-memory.dmp

                  Filesize

                  392KB

                • memory/3608-144-0x0000000024080000-0x00000000240E2000-memory.dmp

                  Filesize

                  392KB

                • memory/3608-157-0x0000000024160000-0x00000000241C2000-memory.dmp

                  Filesize

                  392KB

                • memory/3608-161-0x0000000000400000-0x0000000000450000-memory.dmp

                  Filesize

                  320KB

                • memory/3608-134-0x0000000000400000-0x0000000000450000-memory.dmp

                  Filesize

                  320KB

                • memory/3608-133-0x0000000000400000-0x0000000000450000-memory.dmp

                  Filesize

                  320KB

                • memory/5028-162-0x0000000024160000-0x00000000241C2000-memory.dmp

                  Filesize

                  392KB

                • memory/5028-160-0x0000000024160000-0x00000000241C2000-memory.dmp

                  Filesize

                  392KB

                • memory/5028-171-0x0000000024160000-0x00000000241C2000-memory.dmp

                  Filesize

                  392KB

                • memory/5040-169-0x0000000000400000-0x0000000000450000-memory.dmp

                  Filesize

                  320KB

                • memory/5040-170-0x0000000000400000-0x0000000000450000-memory.dmp

                  Filesize

                  320KB