Analysis

  • max time kernel
    169s
  • max time network
    188s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/10/2022, 15:09

General

  • Target

    bf6319eed693eba9cc3a464480bd940f0f45e810507bfcf36b2ad16759c39577.exe

  • Size

    276KB

  • MD5

    15c629aeebbcba838f665eb0d96dd941

  • SHA1

    21cc9fe5130ab2291926a7e82e51c771f6536ef8

  • SHA256

    bf6319eed693eba9cc3a464480bd940f0f45e810507bfcf36b2ad16759c39577

  • SHA512

    2b2b1afcba52d35568ebf1b5270bad4671e2de256f2f19e44fbddd3880aeeaecac9f1c8d78b46875251b5e4e0fe1262ef5f2923d079dbd5b27dc6f14fffe0ca8

  • SSDEEP

    6144:7k4qmM00iIfe3UJYgjwKN3jYxw3Sr3X7RoO:A9cRyyujT3qjj7R

Malware Config

Extracted

Family

cybergate

Version

2.6

Botnet

Otario

C2

cocoderato.no-ip.biz:81

Mutex

***MUTEX***

Attributes
  • enable_keylogger

    true

  • enable_message_box

    false

  • ftp_directory

    ./logs/

  • ftp_interval

    30

  • injected_process

    explorer.exe

  • install_dir

    install

  • install_file

    server.exe

  • install_flag

    true

  • keylogger_enable_ftp

    false

  • message_box_caption

    Se ferrou

  • message_box_title

    coco

  • password

    abcd1234

  • 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 2 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 2 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bf6319eed693eba9cc3a464480bd940f0f45e810507bfcf36b2ad16759c39577.exe
    "C:\Users\Admin\AppData\Local\Temp\bf6319eed693eba9cc3a464480bd940f0f45e810507bfcf36b2ad16759c39577.exe"
    1⤵
    • 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 WriteProcessMemory
    PID:4200
    • C:\Users\Admin\AppData\Local\Temp\bf6319eed693eba9cc3a464480bd940f0f45e810507bfcf36b2ad16759c39577.exe
      "C:\Users\Admin\AppData\Local\Temp\bf6319eed693eba9cc3a464480bd940f0f45e810507bfcf36b2ad16759c39577.exe"
      2⤵
      • Checks computer location settings
      • Drops file in System32 directory
      • Modifies registry class
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:312
      • C:\Windows\SysWOW64\install\server.exe
        "C:\Windows\system32\install\server.exe"
        3⤵
        • Executes dropped EXE
        PID:1568
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1568 -s 568
          4⤵
          • Program crash
          PID:4620
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1568 -ip 1568
    1⤵
      PID:3760

    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

            adab3092d4eee0e6a216b57c8042c73d

            SHA1

            81baf7c2e7c8f6b55baf0bddf299df117c74e6a5

            SHA256

            c9c9a60293de14a073e7875a4351daad8fb62d68399044c49fb00957186140c7

            SHA512

            9c9aa60d8e133409cca4d9311ac73e5b3dc62dccef143b4b9f81b44c721ea3f0c2ce44b745cc5b94679a40771c26ff50fe1ef45c8cc0952c219da1d4fb829d9a

          • C:\Windows\SysWOW64\install\server.exe

            Filesize

            276KB

            MD5

            15c629aeebbcba838f665eb0d96dd941

            SHA1

            21cc9fe5130ab2291926a7e82e51c771f6536ef8

            SHA256

            bf6319eed693eba9cc3a464480bd940f0f45e810507bfcf36b2ad16759c39577

            SHA512

            2b2b1afcba52d35568ebf1b5270bad4671e2de256f2f19e44fbddd3880aeeaecac9f1c8d78b46875251b5e4e0fe1262ef5f2923d079dbd5b27dc6f14fffe0ca8

          • C:\Windows\SysWOW64\install\server.exe

            Filesize

            276KB

            MD5

            15c629aeebbcba838f665eb0d96dd941

            SHA1

            21cc9fe5130ab2291926a7e82e51c771f6536ef8

            SHA256

            bf6319eed693eba9cc3a464480bd940f0f45e810507bfcf36b2ad16759c39577

            SHA512

            2b2b1afcba52d35568ebf1b5270bad4671e2de256f2f19e44fbddd3880aeeaecac9f1c8d78b46875251b5e4e0fe1262ef5f2923d079dbd5b27dc6f14fffe0ca8

          • memory/312-138-0x0000000024010000-0x0000000024072000-memory.dmp

            Filesize

            392KB

          • memory/312-140-0x0000000024010000-0x0000000024072000-memory.dmp

            Filesize

            392KB

          • memory/312-146-0x0000000024010000-0x0000000024072000-memory.dmp

            Filesize

            392KB

          • memory/1568-145-0x0000000000400000-0x0000000000457000-memory.dmp

            Filesize

            348KB

          • memory/4200-132-0x0000000000400000-0x0000000000457000-memory.dmp

            Filesize

            348KB

          • memory/4200-135-0x0000000024010000-0x0000000024072000-memory.dmp

            Filesize

            392KB

          • memory/4200-139-0x0000000000400000-0x0000000000457000-memory.dmp

            Filesize

            348KB