Analysis

  • max time kernel
    150s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    03-12-2022 17:22

General

  • Target

    844a13062f29c313cdab23cf9b2d42a1dca4b9410b95dba95efae934a6e3c024.exe

  • Size

    542KB

  • MD5

    f9ea3007ed50e8fb07cc3c37308ffafb

  • SHA1

    54deccd624e9803eb451fd359e8bab880425f84b

  • SHA256

    844a13062f29c313cdab23cf9b2d42a1dca4b9410b95dba95efae934a6e3c024

  • SHA512

    b0cc157836752437e92a593595f48225f7156bd8f6de9d68401d5e03cea7b4f9ca88cda2819d934d13da5d5b9ed332ac5829181b0c85a28463b7c3c572f23acc

  • SSDEEP

    12288:bZvOVpDcQqibk0sbRu8BQG+7pis7fYFH7E5N:bBOVlqigxbTQHp7jGO

Malware Config

Extracted

Family

cybergate

Version

2.6

Botnet

Victima

C2

85.137.57.212:58

Mutex

***MUTEX***

Attributes
  • enable_keylogger

    true

  • enable_message_box

    true

  • ftp_directory

    ./logs/

  • ftp_interval

    30

  • injected_process

    winlogon.exe

  • install_dir

    system32

  • install_file

    winlogons.exe

  • install_flag

    true

  • keylogger_enable_ftp

    false

  • message_box_caption

    Se instalarĂ¡ en el sistema el archivo wlogon.dll para su funcionamiento

  • message_box_title

    Aviso de Windows

  • password

    159951

  • 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 2 IoCs
  • Modifies Installed Components in the registry 2 TTPs 4 IoCs
  • UPX packed file 20 IoCs

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

  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Drops file in System32 directory 5 IoCs
  • Suspicious use of SetThreadContext 2 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 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:1212
      • C:\Users\Admin\AppData\Local\Temp\844a13062f29c313cdab23cf9b2d42a1dca4b9410b95dba95efae934a6e3c024.exe
        "C:\Users\Admin\AppData\Local\Temp\844a13062f29c313cdab23cf9b2d42a1dca4b9410b95dba95efae934a6e3c024.exe"
        2⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1300
        • C:\Users\Admin\AppData\Local\Temp\844a13062f29c313cdab23cf9b2d42a1dca4b9410b95dba95efae934a6e3c024.exe
          "C:\Users\Admin\AppData\Local\Temp\844a13062f29c313cdab23cf9b2d42a1dca4b9410b95dba95efae934a6e3c024.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:1208
          • C:\Windows\SysWOW64\explorer.exe
            explorer.exe
            4⤵
            • Modifies Installed Components in the registry
            PID:1544
          • C:\Users\Admin\AppData\Local\Temp\844a13062f29c313cdab23cf9b2d42a1dca4b9410b95dba95efae934a6e3c024.exe
            "C:\Users\Admin\AppData\Local\Temp\844a13062f29c313cdab23cf9b2d42a1dca4b9410b95dba95efae934a6e3c024.exe"
            4⤵
            • Loads dropped DLL
            • Drops file in System32 directory
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of AdjustPrivilegeToken
            PID:1732
            • C:\Windows\SysWOW64\system32\winlogons.exe
              "C:\Windows\system32\system32\winlogons.exe"
              5⤵
              • Executes dropped EXE
              • Drops file in System32 directory
              • Suspicious use of SetThreadContext
              • Suspicious use of SetWindowsHookEx
              PID:1964
              • C:\Windows\SysWOW64\system32\winlogons.exe
                "C:\Windows\SysWOW64\system32\winlogons.exe"
                6⤵
                • Executes dropped EXE
                PID:820

    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:\KERNEL32.DLL
      Filesize

      32KB

      MD5

      0676a9f7a509468fbdec515278390f4f

      SHA1

      5f6ae96f8c3ebab6cce16902272dda2c5b72a340

      SHA256

      12b28f4bcd9545bd838246085fcc97a88683eed88b2d45722a609a5db5cb5018

      SHA512

      8ce6ce09d903e8d27be4660749f3b76eaab41d079854a4aa4c5bed876207c18001d3cf4c7ade657c97400c9ecb85461c9b2398ddecabba9895b3b1c6e5e6c329

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

      229KB

      MD5

      7e4e22da68b11e8f4491b8d699d403f0

      SHA1

      e027475bba570230adab0078e9286d27dccd4a4c

      SHA256

      764e7f042cf7db7c9a4ba81c97ba3a8e4871cffdbac4ca3ac1f24cb822022a27

      SHA512

      9865566d25d9585f4077d36690945dc8270450f9d25c0f4ebcd0861c8ae2de1e7e2096b5246fbf39d3d459398db12fb10f58ff38bd5a8400b5cf084f73033f16

    • C:\Windows\SysWOW64\system32\winlogons.exe
      Filesize

      542KB

      MD5

      f9ea3007ed50e8fb07cc3c37308ffafb

      SHA1

      54deccd624e9803eb451fd359e8bab880425f84b

      SHA256

      844a13062f29c313cdab23cf9b2d42a1dca4b9410b95dba95efae934a6e3c024

      SHA512

      b0cc157836752437e92a593595f48225f7156bd8f6de9d68401d5e03cea7b4f9ca88cda2819d934d13da5d5b9ed332ac5829181b0c85a28463b7c3c572f23acc

    • C:\Windows\SysWOW64\system32\winlogons.exe
      Filesize

      542KB

      MD5

      f9ea3007ed50e8fb07cc3c37308ffafb

      SHA1

      54deccd624e9803eb451fd359e8bab880425f84b

      SHA256

      844a13062f29c313cdab23cf9b2d42a1dca4b9410b95dba95efae934a6e3c024

      SHA512

      b0cc157836752437e92a593595f48225f7156bd8f6de9d68401d5e03cea7b4f9ca88cda2819d934d13da5d5b9ed332ac5829181b0c85a28463b7c3c572f23acc

    • C:\Windows\SysWOW64\system32\winlogons.exe
      Filesize

      542KB

      MD5

      f9ea3007ed50e8fb07cc3c37308ffafb

      SHA1

      54deccd624e9803eb451fd359e8bab880425f84b

      SHA256

      844a13062f29c313cdab23cf9b2d42a1dca4b9410b95dba95efae934a6e3c024

      SHA512

      b0cc157836752437e92a593595f48225f7156bd8f6de9d68401d5e03cea7b4f9ca88cda2819d934d13da5d5b9ed332ac5829181b0c85a28463b7c3c572f23acc

    • \Windows\SysWOW64\system32\winlogons.exe
      Filesize

      542KB

      MD5

      f9ea3007ed50e8fb07cc3c37308ffafb

      SHA1

      54deccd624e9803eb451fd359e8bab880425f84b

      SHA256

      844a13062f29c313cdab23cf9b2d42a1dca4b9410b95dba95efae934a6e3c024

      SHA512

      b0cc157836752437e92a593595f48225f7156bd8f6de9d68401d5e03cea7b4f9ca88cda2819d934d13da5d5b9ed332ac5829181b0c85a28463b7c3c572f23acc

    • \Windows\SysWOW64\system32\winlogons.exe
      Filesize

      542KB

      MD5

      f9ea3007ed50e8fb07cc3c37308ffafb

      SHA1

      54deccd624e9803eb451fd359e8bab880425f84b

      SHA256

      844a13062f29c313cdab23cf9b2d42a1dca4b9410b95dba95efae934a6e3c024

      SHA512

      b0cc157836752437e92a593595f48225f7156bd8f6de9d68401d5e03cea7b4f9ca88cda2819d934d13da5d5b9ed332ac5829181b0c85a28463b7c3c572f23acc

    • memory/820-117-0x0000000000400000-0x0000000000457000-memory.dmp
      Filesize

      348KB

    • memory/820-116-0x0000000000400000-0x0000000000457000-memory.dmp
      Filesize

      348KB

    • memory/820-113-0x0000000000400000-0x0000000000457000-memory.dmp
      Filesize

      348KB

    • memory/820-112-0x0000000000400000-0x0000000000457000-memory.dmp
      Filesize

      348KB

    • memory/820-107-0x0000000000455C10-mapping.dmp
    • memory/1208-96-0x00000000001B0000-0x00000000001FB000-memory.dmp
      Filesize

      300KB

    • memory/1208-65-0x0000000024010000-0x0000000024072000-memory.dmp
      Filesize

      392KB

    • memory/1208-74-0x0000000024080000-0x00000000240E2000-memory.dmp
      Filesize

      392KB

    • memory/1208-119-0x00000000001B0000-0x00000000001FB000-memory.dmp
      Filesize

      300KB

    • memory/1208-57-0x0000000000455C10-mapping.dmp
    • memory/1208-89-0x00000000240F0000-0x0000000024152000-memory.dmp
      Filesize

      392KB

    • memory/1208-95-0x0000000000400000-0x0000000000457000-memory.dmp
      Filesize

      348KB

    • memory/1208-61-0x0000000000400000-0x0000000000457000-memory.dmp
      Filesize

      348KB

    • memory/1208-56-0x0000000000400000-0x0000000000457000-memory.dmp
      Filesize

      348KB

    • memory/1208-60-0x00000000757A1000-0x00000000757A3000-memory.dmp
      Filesize

      8KB

    • memory/1208-62-0x0000000000400000-0x0000000000457000-memory.dmp
      Filesize

      348KB

    • memory/1208-63-0x0000000000400000-0x0000000000457000-memory.dmp
      Filesize

      348KB

    • memory/1212-68-0x0000000024010000-0x0000000024072000-memory.dmp
      Filesize

      392KB

    • memory/1300-59-0x0000000000400000-0x000000000044B000-memory.dmp
      Filesize

      300KB

    • memory/1544-71-0x0000000000000000-mapping.dmp
    • memory/1544-82-0x0000000024080000-0x00000000240E2000-memory.dmp
      Filesize

      392KB

    • memory/1544-79-0x0000000024080000-0x00000000240E2000-memory.dmp
      Filesize

      392KB

    • memory/1544-73-0x00000000746B1000-0x00000000746B3000-memory.dmp
      Filesize

      8KB

    • memory/1732-94-0x00000000240F0000-0x0000000024152000-memory.dmp
      Filesize

      392KB

    • memory/1732-97-0x0000000000400000-0x000000000044B000-memory.dmp
      Filesize

      300KB

    • memory/1732-98-0x00000000240F0000-0x0000000024152000-memory.dmp
      Filesize

      392KB

    • memory/1732-114-0x0000000005F30000-0x0000000005F7B000-memory.dmp
      Filesize

      300KB

    • memory/1732-115-0x0000000005F30000-0x0000000005F7B000-memory.dmp
      Filesize

      300KB

    • memory/1732-87-0x0000000000000000-mapping.dmp
    • memory/1732-118-0x00000000240F0000-0x0000000024152000-memory.dmp
      Filesize

      392KB

    • memory/1732-120-0x0000000005F30000-0x0000000005F7B000-memory.dmp
      Filesize

      300KB

    • memory/1732-121-0x0000000005F30000-0x0000000005F7B000-memory.dmp
      Filesize

      300KB

    • memory/1964-110-0x0000000000400000-0x000000000044B000-memory.dmp
      Filesize

      300KB

    • memory/1964-101-0x0000000000000000-mapping.dmp