Analysis

  • max time kernel
    261s
  • max time network
    336s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    01-12-2022 03:11

General

  • Target

    777694b755204975d04a44662eaa52d50daa0a3ed89d3e34670505392fd3de35.exe

  • Size

    354KB

  • MD5

    cecdb0538eca0d2a5ebb0733cc295c46

  • SHA1

    c40109a26e6bf7e834d3305656227428ff8d430f

  • SHA256

    777694b755204975d04a44662eaa52d50daa0a3ed89d3e34670505392fd3de35

  • SHA512

    adf446713c7ed70d580eb4bc693d11501bbf4fb98544c2e10ee5f7a022cc42a812826fb42561204b2fff53c046110c50de59d285ddc06fe79f8debf1cc017f2a

  • SSDEEP

    6144:yVE1M2ThJx47aSEw4BJULulWA5pVe7zv0V0wbQOB0bjj3f0e5Xxw8dF:6E1M2907amu3He7zY0o1B03QcxwyF

Malware Config

Extracted

Family

cybergate

Version

2.6

Botnet

download

C2

dvdymgb.no-ip.org:3460

Mutex

***MUTEXf***

Attributes
  • enable_keylogger

    true

  • enable_message_box

    false

  • ftp_directory

    ./logs/

  • ftp_interval

    30

  • injected_process

    explorer.exe

  • install_dir

    Steamm

  • install_file

    steamm.exe

  • install_flag

    true

  • keylogger_enable_ftp

    false

  • message_box_caption

    texto da mensagem

  • message_box_title

    título da mensagem

  • password

    123

  • 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
  • UPX packed file 10 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 1 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:1228
      • C:\Users\Admin\AppData\Local\Temp\777694b755204975d04a44662eaa52d50daa0a3ed89d3e34670505392fd3de35.exe
        "C:\Users\Admin\AppData\Local\Temp\777694b755204975d04a44662eaa52d50daa0a3ed89d3e34670505392fd3de35.exe"
        2⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:512
        • C:\Users\Admin\AppData\Local\Temp\777694b755204975d04a44662eaa52d50daa0a3ed89d3e34670505392fd3de35.exe
          "C:\Users\Admin\AppData\Local\Temp\777694b755204975d04a44662eaa52d50daa0a3ed89d3e34670505392fd3de35.exe"
          3⤵
          • Adds policy Run key to start application
          • Adds Run key to start application
          • Drops file in System32 directory
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of WriteProcessMemory
          PID:568
          • C:\Windows\SysWOW64\explorer.exe
            explorer.exe
            4⤵
              PID:928
            • C:\Program Files\Internet Explorer\iexplore.exe
              "C:\Program Files\Internet Explorer\iexplore.exe"
              4⤵
                PID:968
              • C:\Users\Admin\AppData\Local\Temp\777694b755204975d04a44662eaa52d50daa0a3ed89d3e34670505392fd3de35.exe
                "C:\Users\Admin\AppData\Local\Temp\777694b755204975d04a44662eaa52d50daa0a3ed89d3e34670505392fd3de35.exe"
                4⤵
                • Loads dropped DLL
                • Drops file in System32 directory
                • Suspicious behavior: GetForegroundWindowSpam
                • Suspicious use of AdjustPrivilegeToken
                PID:428
                • C:\Windows\SysWOW64\Steamm\steamm.exe
                  "C:\Windows\system32\Steamm\steamm.exe"
                  5⤵
                  • Executes dropped EXE
                  • Drops file in System32 directory
                  • Suspicious use of SetThreadContext
                  • Suspicious use of SetWindowsHookEx
                  PID:588
                  • C:\Windows\SysWOW64\Steamm\steamm.exe
                    "C:\Windows\SysWOW64\Steamm\steamm.exe"
                    6⤵
                    • Executes dropped EXE
                    PID:364

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          229KB

          MD5

          15429d4cc805d39911dda280c7ce8dbe

          SHA1

          a6bd1e629850760b15da7e7ae7fb1e663b360dc2

          SHA256

          10ac20bc4c2c4377128ce8d3a75d5a08ddcdc516489f9b24d5c44eefddfda2ba

          SHA512

          4667b1fd79d4c2bddc23106041e65c2867aa4ae54c741198195cc51578bbf5c4c530bd3d52a9d7f924a5b84f660564a2323310720e6ca07e4ba2be1f190e3160

        • C:\Windows\SysWOW64\Steamm\steamm.exe

          Filesize

          354KB

          MD5

          cecdb0538eca0d2a5ebb0733cc295c46

          SHA1

          c40109a26e6bf7e834d3305656227428ff8d430f

          SHA256

          777694b755204975d04a44662eaa52d50daa0a3ed89d3e34670505392fd3de35

          SHA512

          adf446713c7ed70d580eb4bc693d11501bbf4fb98544c2e10ee5f7a022cc42a812826fb42561204b2fff53c046110c50de59d285ddc06fe79f8debf1cc017f2a

        • C:\Windows\SysWOW64\Steamm\steamm.exe

          Filesize

          354KB

          MD5

          cecdb0538eca0d2a5ebb0733cc295c46

          SHA1

          c40109a26e6bf7e834d3305656227428ff8d430f

          SHA256

          777694b755204975d04a44662eaa52d50daa0a3ed89d3e34670505392fd3de35

          SHA512

          adf446713c7ed70d580eb4bc693d11501bbf4fb98544c2e10ee5f7a022cc42a812826fb42561204b2fff53c046110c50de59d285ddc06fe79f8debf1cc017f2a

        • C:\Windows\SysWOW64\Steamm\steamm.exe

          Filesize

          354KB

          MD5

          cecdb0538eca0d2a5ebb0733cc295c46

          SHA1

          c40109a26e6bf7e834d3305656227428ff8d430f

          SHA256

          777694b755204975d04a44662eaa52d50daa0a3ed89d3e34670505392fd3de35

          SHA512

          adf446713c7ed70d580eb4bc693d11501bbf4fb98544c2e10ee5f7a022cc42a812826fb42561204b2fff53c046110c50de59d285ddc06fe79f8debf1cc017f2a

        • \Windows\SysWOW64\Steamm\steamm.exe

          Filesize

          354KB

          MD5

          cecdb0538eca0d2a5ebb0733cc295c46

          SHA1

          c40109a26e6bf7e834d3305656227428ff8d430f

          SHA256

          777694b755204975d04a44662eaa52d50daa0a3ed89d3e34670505392fd3de35

          SHA512

          adf446713c7ed70d580eb4bc693d11501bbf4fb98544c2e10ee5f7a022cc42a812826fb42561204b2fff53c046110c50de59d285ddc06fe79f8debf1cc017f2a

        • \Windows\SysWOW64\Steamm\steamm.exe

          Filesize

          354KB

          MD5

          cecdb0538eca0d2a5ebb0733cc295c46

          SHA1

          c40109a26e6bf7e834d3305656227428ff8d430f

          SHA256

          777694b755204975d04a44662eaa52d50daa0a3ed89d3e34670505392fd3de35

          SHA512

          adf446713c7ed70d580eb4bc693d11501bbf4fb98544c2e10ee5f7a022cc42a812826fb42561204b2fff53c046110c50de59d285ddc06fe79f8debf1cc017f2a

        • memory/364-124-0x0000000000400000-0x0000000000450000-memory.dmp

          Filesize

          320KB

        • memory/364-125-0x0000000000400000-0x0000000000450000-memory.dmp

          Filesize

          320KB

        • memory/364-127-0x0000000000400000-0x0000000000450000-memory.dmp

          Filesize

          320KB

        • memory/428-126-0x0000000024160000-0x00000000241C2000-memory.dmp

          Filesize

          392KB

        • memory/428-102-0x0000000024160000-0x00000000241C2000-memory.dmp

          Filesize

          392KB

        • memory/428-129-0x0000000024160000-0x00000000241C2000-memory.dmp

          Filesize

          392KB

        • memory/568-67-0x0000000000400000-0x0000000000450000-memory.dmp

          Filesize

          320KB

        • memory/568-68-0x0000000075D51000-0x0000000075D53000-memory.dmp

          Filesize

          8KB

        • memory/568-57-0x0000000000400000-0x0000000000450000-memory.dmp

          Filesize

          320KB

        • memory/568-81-0x0000000024080000-0x00000000240E2000-memory.dmp

          Filesize

          392KB

        • memory/568-59-0x0000000000400000-0x0000000000450000-memory.dmp

          Filesize

          320KB

        • memory/568-60-0x0000000000400000-0x0000000000450000-memory.dmp

          Filesize

          320KB

        • memory/568-61-0x0000000000400000-0x0000000000450000-memory.dmp

          Filesize

          320KB

        • memory/568-72-0x0000000024010000-0x0000000024072000-memory.dmp

          Filesize

          392KB

        • memory/568-91-0x00000000240F0000-0x0000000024152000-memory.dmp

          Filesize

          392KB

        • memory/568-70-0x0000000000400000-0x0000000000450000-memory.dmp

          Filesize

          320KB

        • memory/568-97-0x0000000024160000-0x00000000241C2000-memory.dmp

          Filesize

          392KB

        • memory/568-69-0x0000000000400000-0x0000000000450000-memory.dmp

          Filesize

          320KB

        • memory/568-103-0x0000000000400000-0x0000000000450000-memory.dmp

          Filesize

          320KB

        • memory/568-62-0x0000000000400000-0x0000000000450000-memory.dmp

          Filesize

          320KB

        • memory/568-63-0x0000000000400000-0x0000000000450000-memory.dmp

          Filesize

          320KB

        • memory/568-56-0x0000000000400000-0x0000000000450000-memory.dmp

          Filesize

          320KB

        • memory/568-65-0x0000000000400000-0x0000000000450000-memory.dmp

          Filesize

          320KB

        • memory/928-87-0x0000000024080000-0x00000000240E2000-memory.dmp

          Filesize

          392KB

        • memory/928-86-0x0000000024080000-0x00000000240E2000-memory.dmp

          Filesize

          392KB

        • memory/928-128-0x0000000024080000-0x00000000240E2000-memory.dmp

          Filesize

          392KB

        • memory/928-80-0x0000000074CE1000-0x0000000074CE3000-memory.dmp

          Filesize

          8KB

        • memory/1228-75-0x0000000024010000-0x0000000024072000-memory.dmp

          Filesize

          392KB