Analysis

  • max time kernel
    164s
  • max time network
    170s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-12-2022 10:00

General

  • Target

    cccfb5e0994937e4e82206181f16b9f60556749dd3aa2a13a0dcca9370d41956.exe

  • Size

    392KB

  • MD5

    d44a2bcb5498914f8a2a8da9971682f7

  • SHA1

    09e3c6a21c416e62b7f358d1f7139a6eb160f4a9

  • SHA256

    cccfb5e0994937e4e82206181f16b9f60556749dd3aa2a13a0dcca9370d41956

  • SHA512

    40386642aa3d6c3b151c2f418d7ea1fc2898a193e81207cb9f5d9460a39009e157455b9327e2c77368587359e47c211296fa7260a9bbbad38c43ca01545e9dd2

  • SSDEEP

    6144:Gjg7qM+iSMmPzytxn4NJRgZH84HYdaiVexBXybVoBEZhZaJxId0MG62:7FUyvqRgZH844dbex9ybOQZa3562

Malware Config

Extracted

Family

cybergate

Version

2.6

Botnet

Victime

C2

by-brunix.no-ip.org:81

brunix-by.no-ip.biz:81

192.168.1.10:81

Mutex

jajaja...

Attributes
  • enable_keylogger

    true

  • enable_message_box

    false

  • ftp_directory

    ./logs/

  • ftp_interval

    30

  • injected_process

    explorer.exe

  • install_dir

    Win32

  • install_file

    notepad.exe

  • install_flag

    true

  • keylogger_enable_ftp

    false

  • message_box_title

    Titre = #464545 Message

  • 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
  • Modifies Installed Components in the registry 2 TTPs 4 IoCs
  • UPX packed file 17 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
  • Maps connected drives based on registry 3 TTPs 4 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Suspicious use of SetThreadContext 2 IoCs
  • Drops file in Windows directory 5 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 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:2640
      • C:\Users\Admin\AppData\Local\Temp\cccfb5e0994937e4e82206181f16b9f60556749dd3aa2a13a0dcca9370d41956.exe
        "C:\Users\Admin\AppData\Local\Temp\cccfb5e0994937e4e82206181f16b9f60556749dd3aa2a13a0dcca9370d41956.exe"
        2⤵
        • Maps connected drives based on registry
        • Suspicious use of SetThreadContext
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1872
        • C:\Users\Admin\AppData\Local\Temp\cccfb5e0994937e4e82206181f16b9f60556749dd3aa2a13a0dcca9370d41956.exe
          C:\Users\Admin\AppData\Local\Temp\cccfb5e0994937e4e82206181f16b9f60556749dd3aa2a13a0dcca9370d41956.exe
          3⤵
          • Adds policy Run key to start application
          • Modifies Installed Components in the registry
          • Adds Run key to start application
          • Drops file in Windows directory
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of WriteProcessMemory
          PID:4040
          • C:\Windows\SysWOW64\explorer.exe
            explorer.exe
            4⤵
            • Modifies Installed Components in the registry
            PID:4384
          • C:\Program Files\Internet Explorer\iexplore.exe
            "C:\Program Files\Internet Explorer\iexplore.exe"
            4⤵
              PID:2216
            • C:\Users\Admin\AppData\Local\Temp\cccfb5e0994937e4e82206181f16b9f60556749dd3aa2a13a0dcca9370d41956.exe
              "C:\Users\Admin\AppData\Local\Temp\cccfb5e0994937e4e82206181f16b9f60556749dd3aa2a13a0dcca9370d41956.exe"
              4⤵
              • Checks computer location settings
              • Drops file in Windows directory
              • Modifies registry class
              • Suspicious behavior: GetForegroundWindowSpam
              • Suspicious use of AdjustPrivilegeToken
              PID:2544
              • C:\Windows\Win32\notepad.exe
                "C:\Windows\Win32\notepad.exe"
                5⤵
                • Executes dropped EXE
                • Maps connected drives based on registry
                • Suspicious use of SetThreadContext
                • Drops file in Windows directory
                • Suspicious use of SetWindowsHookEx
                PID:4200
                • C:\Windows\Win32\notepad.exe
                  C:\Windows\Win32\notepad.exe
                  6⤵
                  • Executes dropped EXE
                  PID:4368
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -u -p 4368 -s 544
                    7⤵
                    • Program crash
                    PID:3708
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4368 -ip 4368
        1⤵
          PID:796

        Network

        MITRE ATT&CK Matrix ATT&CK v6

        Persistence

        Registry Run Keys / Startup Folder

        3
        T1060

        Defense Evasion

        Modify Registry

        3
        T1112

        Discovery

        Query Registry

        2
        T1012

        System Information Discovery

        3
        T1082

        Peripheral Device Discovery

        1
        T1120

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          229KB

          MD5

          e29e2ae7b157db386dd8b2944227409a

          SHA1

          ae70bee5bee8e6e57d17ca51c545c58aac72e188

          SHA256

          26954a7e54bc8cad81e171e68a7e59b8f2000d4293cce14134e54417c88b073e

          SHA512

          27f84f5e170ecf1a59bf09a0fa37c4260283c0659cd63b5502ff80b66200ec5bbfad0649d576f6738bc8b367f8753c960cbe58e0091b35ba86d0f53196e7c693

        • C:\Windows\Win32\notepad.exe
          Filesize

          392KB

          MD5

          d44a2bcb5498914f8a2a8da9971682f7

          SHA1

          09e3c6a21c416e62b7f358d1f7139a6eb160f4a9

          SHA256

          cccfb5e0994937e4e82206181f16b9f60556749dd3aa2a13a0dcca9370d41956

          SHA512

          40386642aa3d6c3b151c2f418d7ea1fc2898a193e81207cb9f5d9460a39009e157455b9327e2c77368587359e47c211296fa7260a9bbbad38c43ca01545e9dd2

        • C:\Windows\Win32\notepad.exe
          Filesize

          392KB

          MD5

          d44a2bcb5498914f8a2a8da9971682f7

          SHA1

          09e3c6a21c416e62b7f358d1f7139a6eb160f4a9

          SHA256

          cccfb5e0994937e4e82206181f16b9f60556749dd3aa2a13a0dcca9370d41956

          SHA512

          40386642aa3d6c3b151c2f418d7ea1fc2898a193e81207cb9f5d9460a39009e157455b9327e2c77368587359e47c211296fa7260a9bbbad38c43ca01545e9dd2

        • C:\Windows\Win32\notepad.exe
          Filesize

          392KB

          MD5

          d44a2bcb5498914f8a2a8da9971682f7

          SHA1

          09e3c6a21c416e62b7f358d1f7139a6eb160f4a9

          SHA256

          cccfb5e0994937e4e82206181f16b9f60556749dd3aa2a13a0dcca9370d41956

          SHA512

          40386642aa3d6c3b151c2f418d7ea1fc2898a193e81207cb9f5d9460a39009e157455b9327e2c77368587359e47c211296fa7260a9bbbad38c43ca01545e9dd2

        • memory/2544-164-0x0000000024160000-0x00000000241C2000-memory.dmp
          Filesize

          392KB

        • memory/2544-162-0x0000000024160000-0x00000000241C2000-memory.dmp
          Filesize

          392KB

        • memory/2544-158-0x0000000000000000-mapping.dmp
        • memory/2544-176-0x0000000024160000-0x00000000241C2000-memory.dmp
          Filesize

          392KB

        • memory/4040-139-0x0000000000400000-0x0000000000457000-memory.dmp
          Filesize

          348KB

        • memory/4040-146-0x0000000024080000-0x00000000240E2000-memory.dmp
          Filesize

          392KB

        • memory/4040-141-0x0000000024010000-0x0000000024072000-memory.dmp
          Filesize

          392KB

        • memory/4040-134-0x0000000000000000-mapping.dmp
        • memory/4040-154-0x00000000240F0000-0x0000000024152000-memory.dmp
          Filesize

          392KB

        • memory/4040-138-0x0000000000400000-0x0000000000457000-memory.dmp
          Filesize

          348KB

        • memory/4040-159-0x0000000024160000-0x00000000241C2000-memory.dmp
          Filesize

          392KB

        • memory/4040-163-0x0000000000400000-0x0000000000457000-memory.dmp
          Filesize

          348KB

        • memory/4040-137-0x0000000000400000-0x0000000000457000-memory.dmp
          Filesize

          348KB

        • memory/4040-135-0x0000000000400000-0x0000000000457000-memory.dmp
          Filesize

          348KB

        • memory/4200-165-0x0000000000000000-mapping.dmp
        • memory/4368-169-0x0000000000000000-mapping.dmp
        • memory/4368-173-0x0000000000400000-0x0000000000457000-memory.dmp
          Filesize

          348KB

        • memory/4368-174-0x0000000000400000-0x0000000000457000-memory.dmp
          Filesize

          348KB

        • memory/4368-175-0x0000000000400000-0x0000000000457000-memory.dmp
          Filesize

          348KB

        • memory/4384-153-0x0000000024080000-0x00000000240E2000-memory.dmp
          Filesize

          392KB

        • memory/4384-149-0x0000000024080000-0x00000000240E2000-memory.dmp
          Filesize

          392KB

        • memory/4384-145-0x0000000000000000-mapping.dmp