Analysis

  • max time kernel
    178s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/09/2022, 09:54

General

  • Target

    ca85af7bad7b7945472c1885640aaa7e7fbef5059bd26b53676a34c9723f2917.exe

  • Size

    290KB

  • MD5

    59ba99c34eeb43ba0587b195c340b7d8

  • SHA1

    31b6da16901dcad5d95ba06c5435b47e2ee48586

  • SHA256

    ca85af7bad7b7945472c1885640aaa7e7fbef5059bd26b53676a34c9723f2917

  • SHA512

    12bf215921372fc9b2cce08d0651dc9307c3a1b160e35b8ce6eacfcab43a656d0a886c98834a0dde03d67de075f65c29ec88866fcfddc55f93f101bab8bddc0d

  • SSDEEP

    6144:ImcD66RRjs5JGmrpQsK3RD2u270jupCJsCxC9:BcD663pZ2zkPaCxQ

Malware Config

Extracted

Family

cybergate

Version

2.6

Botnet

vítima

C2

127.0.0.1:81

theviper.no-ip.biz :81

Mutex

***MUTEX***

Attributes
  • enable_keylogger

    true

  • enable_message_box

    false

  • ftp_directory

    ./logs/

  • ftp_interval

    30

  • injected_process

    chrome.exe

  • install_dir

    config

  • install_file

    sys.exe

  • install_flag

    true

  • keylogger_enable_ftp

    false

  • message_box_caption

    texto da mensagem

  • message_box_title

    título da mensagem

  • password

    0707

  • 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 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
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 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:2492
      • C:\Users\Admin\AppData\Local\Temp\ca85af7bad7b7945472c1885640aaa7e7fbef5059bd26b53676a34c9723f2917.exe
        "C:\Users\Admin\AppData\Local\Temp\ca85af7bad7b7945472c1885640aaa7e7fbef5059bd26b53676a34c9723f2917.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:2144
        • C:\Windows\SysWOW64\explorer.exe
          explorer.exe
          3⤵
          • Modifies Installed Components in the registry
          PID:3836
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe"
          3⤵
            PID:628
          • C:\Users\Admin\AppData\Local\Temp\ca85af7bad7b7945472c1885640aaa7e7fbef5059bd26b53676a34c9723f2917.exe
            "C:\Users\Admin\AppData\Local\Temp\ca85af7bad7b7945472c1885640aaa7e7fbef5059bd26b53676a34c9723f2917.exe"
            3⤵
            • Checks computer location settings
            • Drops file in System32 directory
            • Modifies registry class
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of AdjustPrivilegeToken
            PID:2400
            • C:\Windows\SysWOW64\config\sys.exe
              "C:\Windows\system32\config\sys.exe"
              4⤵
              • Executes dropped EXE
              PID:3808
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 3808 -s 572
                5⤵
                • Program crash
                PID:3432
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 3808 -ip 3808
        1⤵
          PID:2620

        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

          6bfd7ee55c483a73ee5952696ed043af

          SHA1

          c9d0447f6e160f4c8eaa7e54b8d33a51dedf685a

          SHA256

          df5ab09ea0352e23a199c65ff7ddfd66cb186d90b5709b4f08631a172c583a15

          SHA512

          467aa5c7cef3a1fa5e7673e1ff26c73ea848ebec32cd128e988665a6ecd7e3d81f1e5877a1d9bbeadde9c3d22993396374924523c77b17acdd27f336571dc646

        • C:\Windows\SysWOW64\config\sys.exe

          Filesize

          290KB

          MD5

          59ba99c34eeb43ba0587b195c340b7d8

          SHA1

          31b6da16901dcad5d95ba06c5435b47e2ee48586

          SHA256

          ca85af7bad7b7945472c1885640aaa7e7fbef5059bd26b53676a34c9723f2917

          SHA512

          12bf215921372fc9b2cce08d0651dc9307c3a1b160e35b8ce6eacfcab43a656d0a886c98834a0dde03d67de075f65c29ec88866fcfddc55f93f101bab8bddc0d

        • C:\Windows\SysWOW64\config\sys.exe

          Filesize

          290KB

          MD5

          59ba99c34eeb43ba0587b195c340b7d8

          SHA1

          31b6da16901dcad5d95ba06c5435b47e2ee48586

          SHA256

          ca85af7bad7b7945472c1885640aaa7e7fbef5059bd26b53676a34c9723f2917

          SHA512

          12bf215921372fc9b2cce08d0651dc9307c3a1b160e35b8ce6eacfcab43a656d0a886c98834a0dde03d67de075f65c29ec88866fcfddc55f93f101bab8bddc0d

        • memory/2144-139-0x0000000024080000-0x00000000240E2000-memory.dmp

          Filesize

          392KB

        • memory/2144-134-0x0000000024010000-0x0000000024072000-memory.dmp

          Filesize

          392KB

        • memory/2144-147-0x00000000240F0000-0x0000000024152000-memory.dmp

          Filesize

          392KB

        • memory/2144-152-0x0000000024160000-0x00000000241C2000-memory.dmp

          Filesize

          392KB

        • memory/2400-159-0x0000000024160000-0x00000000241C2000-memory.dmp

          Filesize

          392KB

        • memory/2400-155-0x0000000024160000-0x00000000241C2000-memory.dmp

          Filesize

          392KB

        • memory/2400-156-0x0000000024160000-0x00000000241C2000-memory.dmp

          Filesize

          392KB

        • memory/3836-142-0x0000000024080000-0x00000000240E2000-memory.dmp

          Filesize

          392KB

        • memory/3836-145-0x0000000024080000-0x00000000240E2000-memory.dmp

          Filesize

          392KB