Analysis

  • max time kernel
    163s
  • max time network
    171s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/10/2022, 22:06

General

  • Target

    e1c7ef51f013d98c1608f913bdcdc7332a1ff3923b04fd96dc9960f70eadd9e5.exe

  • Size

    283KB

  • MD5

    79b1ceef2223489235268a2b8dc8b170

  • SHA1

    adc48f63d9bb6ae477385ec62748072b3f765493

  • SHA256

    e1c7ef51f013d98c1608f913bdcdc7332a1ff3923b04fd96dc9960f70eadd9e5

  • SHA512

    56a09b9307c79b26dd5b12ed2c66591aadb17b15a27555a88a131e382cb29c3d5194c4a9db4c9380fed18473471a33883af6e0f77cd3e3f90ed3cc06e2f011e1

  • SSDEEP

    6144:TmcD66RRjj5JGmrpQsK3RD2u270jupCJsCxC/:qcD663yZ2zkPaCx+

Malware Config

Extracted

Family

cybergate

Version

2.6

Botnet

vítima

C2

relog.ddns.net:81

Mutex

***MUTEX***

Attributes
  • enable_keylogger

    true

  • enable_message_box

    false

  • ftp_directory

    ./logs/

  • ftp_interval

    30

  • injected_process

    explorer.exe

  • install_dir

    WinRaR

  • install_file

    Chrome.exe

  • install_flag

    true

  • keylogger_enable_ftp

    false

  • message_box_caption

    texto da mensagem

  • message_box_title

    título da mensagem

  • password

    123

  • regkey_hkcu

    Chrome

  • regkey_hklm

    Chrome

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
  • 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 WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:2152
      • C:\Users\Admin\AppData\Local\Temp\e1c7ef51f013d98c1608f913bdcdc7332a1ff3923b04fd96dc9960f70eadd9e5.exe
        "C:\Users\Admin\AppData\Local\Temp\e1c7ef51f013d98c1608f913bdcdc7332a1ff3923b04fd96dc9960f70eadd9e5.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:1684
        • C:\Windows\SysWOW64\explorer.exe
          explorer.exe
          3⤵
          • Modifies Installed Components in the registry
          PID:4336
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe"
          3⤵
            PID:452
          • C:\Users\Admin\AppData\Local\Temp\e1c7ef51f013d98c1608f913bdcdc7332a1ff3923b04fd96dc9960f70eadd9e5.exe
            "C:\Users\Admin\AppData\Local\Temp\e1c7ef51f013d98c1608f913bdcdc7332a1ff3923b04fd96dc9960f70eadd9e5.exe"
            3⤵
            • Checks computer location settings
            • Drops file in System32 directory
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of AdjustPrivilegeToken
            PID:3360
            • C:\Windows\SysWOW64\WinRaR\Chrome.exe
              "C:\Windows\system32\WinRaR\Chrome.exe"
              4⤵
              • Executes dropped EXE
              PID:2044
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 2044 -s 576
                5⤵
                • Program crash
                PID:3480
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2044 -ip 2044
        1⤵
          PID:2208

        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

          6b8f2f7b44887e5204964139887ad2f4

          SHA1

          4063db6dc79bb53b2590a58b8cd0ecba79cf337a

          SHA256

          ea06d9f29786050206ca51ab78c7586c6426d7404e214ac7a98c7ef98b7ad2b6

          SHA512

          2bf63c9cb53ef9f7c3cd6fda316cb695adaca5be6bf1d73a88836a3d2e7a3fabe77bfb80106ff2365389f95649e47d50c74a4f95315242fd99728989a174f164

        • C:\Windows\SysWOW64\WinRaR\Chrome.exe

          Filesize

          283KB

          MD5

          79b1ceef2223489235268a2b8dc8b170

          SHA1

          adc48f63d9bb6ae477385ec62748072b3f765493

          SHA256

          e1c7ef51f013d98c1608f913bdcdc7332a1ff3923b04fd96dc9960f70eadd9e5

          SHA512

          56a09b9307c79b26dd5b12ed2c66591aadb17b15a27555a88a131e382cb29c3d5194c4a9db4c9380fed18473471a33883af6e0f77cd3e3f90ed3cc06e2f011e1

        • C:\Windows\SysWOW64\WinRaR\Chrome.exe

          Filesize

          283KB

          MD5

          79b1ceef2223489235268a2b8dc8b170

          SHA1

          adc48f63d9bb6ae477385ec62748072b3f765493

          SHA256

          e1c7ef51f013d98c1608f913bdcdc7332a1ff3923b04fd96dc9960f70eadd9e5

          SHA512

          56a09b9307c79b26dd5b12ed2c66591aadb17b15a27555a88a131e382cb29c3d5194c4a9db4c9380fed18473471a33883af6e0f77cd3e3f90ed3cc06e2f011e1

        • memory/1684-138-0x0000000024080000-0x00000000240E2000-memory.dmp

          Filesize

          392KB

        • memory/1684-133-0x0000000024010000-0x0000000024072000-memory.dmp

          Filesize

          392KB

        • memory/1684-146-0x00000000240F0000-0x0000000024152000-memory.dmp

          Filesize

          392KB

        • memory/1684-151-0x0000000024160000-0x00000000241C2000-memory.dmp

          Filesize

          392KB

        • memory/3360-158-0x0000000024160000-0x00000000241C2000-memory.dmp

          Filesize

          392KB

        • memory/3360-157-0x0000000024160000-0x00000000241C2000-memory.dmp

          Filesize

          392KB

        • memory/3360-154-0x0000000024160000-0x00000000241C2000-memory.dmp

          Filesize

          392KB

        • memory/4336-141-0x0000000024080000-0x00000000240E2000-memory.dmp

          Filesize

          392KB

        • memory/4336-144-0x0000000024080000-0x00000000240E2000-memory.dmp

          Filesize

          392KB