Analysis

  • max time kernel
    180s
  • max time network
    184s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-12-2022 22:01

General

  • Target

    898a9e25e2088a0da80a3e68a6b5769863adadcb4fffe6e77d86d8688a88a0fe.exe

  • Size

    383KB

  • MD5

    87a2964385bf58dcb94517d44e606beb

  • SHA1

    0d1a8bb92f196660a03cbefd4be874144583f801

  • SHA256

    898a9e25e2088a0da80a3e68a6b5769863adadcb4fffe6e77d86d8688a88a0fe

  • SHA512

    14319a4103bbcfcb038450f7a68e3bfa3e0019362554e2071be3adcc95896cfff417a5820516d6f8c404d2c98236a8737508c713207586f2141600b2da69dc27

  • SSDEEP

    6144:NG1eQn11Gba5L4Eby4IBGb+L4BBLpVPuxQc8v3S6MOBsSmKSv2tc/yyI:E/11GTEbyNGbK4xtw9uGp/gyI

Malware Config

Extracted

Family

cybergate

Version

2.6

Botnet

Hacker

C2

memet1.zapto.org:81

Mutex

***MUTEX***

Attributes
  • enable_keylogger

    true

  • enable_message_box

    false

  • ftp_directory

    ./logs/

  • ftp_interval

    30

  • injected_process

    explorer.exe

  • install_dir

    smss

  • install_file

    smss.exe

  • install_flag

    true

  • keylogger_enable_ftp

    false

  • message_box_caption

    texto da mensagem

  • message_box_title

    título da mensagem

  • password

    123

  • regkey_hkcu

    smss

  • regkey_hklm

    smss

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 4 IoCs
  • UPX packed file 8 IoCs

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

  • Adds Run key to start application 2 TTPs 4 IoCs
  • Drops file in System32 directory 5 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Program crash 1 IoCs
  • Modifies registry class 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 SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:1036
      • C:\Users\Admin\AppData\Local\Temp\898a9e25e2088a0da80a3e68a6b5769863adadcb4fffe6e77d86d8688a88a0fe.exe
        "C:\Users\Admin\AppData\Local\Temp\898a9e25e2088a0da80a3e68a6b5769863adadcb4fffe6e77d86d8688a88a0fe.exe"
        2⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2392
        • C:\Users\Admin\AppData\Local\Temp\898a9e25e2088a0da80a3e68a6b5769863adadcb4fffe6e77d86d8688a88a0fe.exe
          "C:\Users\Admin\AppData\Local\Temp\898a9e25e2088a0da80a3e68a6b5769863adadcb4fffe6e77d86d8688a88a0fe.exe"
          3⤵
          • 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:3648
          • C:\Windows\SysWOW64\explorer.exe
            explorer.exe
            4⤵
            • Modifies Installed Components in the registry
            PID:2792
          • C:\Windows\SysWOW64\explorer.exe
            explorer.exe
            4⤵
            • Drops file in System32 directory
            • Modifies registry class
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of AdjustPrivilegeToken
            PID:4228
            • C:\Windows\SysWOW64\smss\smss.exe
              "C:\Windows\system32\smss\smss.exe"
              5⤵
              • Executes dropped EXE
              • Drops file in System32 directory
              • Suspicious use of SetThreadContext
              • Suspicious use of SetWindowsHookEx
              PID:916
              • C:\Windows\SysWOW64\smss\smss.exe
                "C:\Windows\SysWOW64\smss\smss.exe"
                6⤵
                • Executes dropped EXE
                PID:3676
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 3676 -s 560
                  7⤵
                  • Program crash
                  PID:4124
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 3676 -ip 3676
      1⤵
        PID:4768

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      Persistence

      Registry Run Keys / Startup Folder

      3
      T1060

      Defense Evasion

      Modify Registry

      3
      T1112

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        229KB

        MD5

        f2b8106f0004f5b5c752224523edba57

        SHA1

        9aaee7afcf006ed418a832f515114f8e341453ca

        SHA256

        ed0e8f4bfd2223ff1cab65f4f0dafce11563a8d9d68938cd09e882e676c49961

        SHA512

        a2a6021e665264ccde12fbcc6a3c1330492fe5ea9832510be696647db63198b901a80b9c8a8e275f014a2141d795746300b9c978ce452e2df93a71785de3237c

      • C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-2386679933-1492765628-3466841596-1000\88603cb2913a7df3fbd16b5f958e6447_8329e3af-909b-464f-88cb-23d8b2c5eadf
        Filesize

        51B

        MD5

        5fc2ac2a310f49c14d195230b91a8885

        SHA1

        90855cc11136ba31758fe33b5cf9571f9a104879

        SHA256

        374e0e2897a7a82e0e44794cad89df0f3cdd7703886239c1fe06d625efd48092

        SHA512

        ab46554df9174b9fe9beba50a640f67534c3812f64d96a1fb8adfdc136dfe730ca2370825cd45b7f87a544d6a58dd868cb5a3a7f42e2789f6d679dbc0fdd52c3

      • C:\Windows\SysWOW64\smss\smss.exe
        Filesize

        383KB

        MD5

        87a2964385bf58dcb94517d44e606beb

        SHA1

        0d1a8bb92f196660a03cbefd4be874144583f801

        SHA256

        898a9e25e2088a0da80a3e68a6b5769863adadcb4fffe6e77d86d8688a88a0fe

        SHA512

        14319a4103bbcfcb038450f7a68e3bfa3e0019362554e2071be3adcc95896cfff417a5820516d6f8c404d2c98236a8737508c713207586f2141600b2da69dc27

      • C:\Windows\SysWOW64\smss\smss.exe
        Filesize

        383KB

        MD5

        87a2964385bf58dcb94517d44e606beb

        SHA1

        0d1a8bb92f196660a03cbefd4be874144583f801

        SHA256

        898a9e25e2088a0da80a3e68a6b5769863adadcb4fffe6e77d86d8688a88a0fe

        SHA512

        14319a4103bbcfcb038450f7a68e3bfa3e0019362554e2071be3adcc95896cfff417a5820516d6f8c404d2c98236a8737508c713207586f2141600b2da69dc27

      • C:\Windows\SysWOW64\smss\smss.exe
        Filesize

        383KB

        MD5

        87a2964385bf58dcb94517d44e606beb

        SHA1

        0d1a8bb92f196660a03cbefd4be874144583f801

        SHA256

        898a9e25e2088a0da80a3e68a6b5769863adadcb4fffe6e77d86d8688a88a0fe

        SHA512

        14319a4103bbcfcb038450f7a68e3bfa3e0019362554e2071be3adcc95896cfff417a5820516d6f8c404d2c98236a8737508c713207586f2141600b2da69dc27

      • memory/916-173-0x0000000000400000-0x000000000044B000-memory.dmp
        Filesize

        300KB

      • memory/916-163-0x0000000000000000-mapping.dmp
      • memory/2392-139-0x0000000000400000-0x000000000044B000-memory.dmp
        Filesize

        300KB

      • memory/2392-132-0x0000000000400000-0x000000000044B000-memory.dmp
        Filesize

        300KB

      • memory/2792-146-0x0000000000000000-mapping.dmp
      • memory/2792-153-0x0000000024080000-0x00000000240E2000-memory.dmp
        Filesize

        392KB

      • memory/2792-150-0x0000000024080000-0x00000000240E2000-memory.dmp
        Filesize

        392KB

      • memory/3648-142-0x0000000024010000-0x0000000024072000-memory.dmp
        Filesize

        392KB

      • memory/3648-136-0x0000000000400000-0x0000000000450000-memory.dmp
        Filesize

        320KB

      • memory/3648-156-0x00000000240F0000-0x0000000024152000-memory.dmp
        Filesize

        392KB

      • memory/3648-147-0x0000000024080000-0x00000000240E2000-memory.dmp
        Filesize

        392KB

      • memory/3648-135-0x0000000000000000-mapping.dmp
      • memory/3648-161-0x0000000000400000-0x0000000000450000-memory.dmp
        Filesize

        320KB

      • memory/3648-140-0x0000000000400000-0x0000000000450000-memory.dmp
        Filesize

        320KB

      • memory/3648-138-0x0000000000400000-0x0000000000450000-memory.dmp
        Filesize

        320KB

      • memory/3648-137-0x0000000000400000-0x0000000000450000-memory.dmp
        Filesize

        320KB

      • memory/3676-174-0x0000000000400000-0x0000000000450000-memory.dmp
        Filesize

        320KB

      • memory/3676-172-0x0000000000400000-0x0000000000450000-memory.dmp
        Filesize

        320KB

      • memory/3676-168-0x0000000000000000-mapping.dmp
      • memory/4228-159-0x00000000240F0000-0x0000000024152000-memory.dmp
        Filesize

        392KB

      • memory/4228-162-0x00000000240F0000-0x0000000024152000-memory.dmp
        Filesize

        392KB

      • memory/4228-160-0x00000000240F0000-0x0000000024152000-memory.dmp
        Filesize

        392KB

      • memory/4228-155-0x0000000000000000-mapping.dmp