Analysis

  • max time kernel
    173s
  • max time network
    178s
  • 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

    81fe468e16bbdd850a9ed7e434e52ea8d36c177cd1946bb6a28708b93123b03b.exe

  • Size

    290KB

  • MD5

    1231f10478b371cd559c12dcad52e031

  • SHA1

    172a3c9ab555c6129d9b01e8c40127b293ab37e6

  • SHA256

    81fe468e16bbdd850a9ed7e434e52ea8d36c177cd1946bb6a28708b93123b03b

  • SHA512

    7492b3248692861fa5221edcf5f71443ee18f2e60ac92fb3d538e4559fb18954a4c60584c9b39b8acebc4646c106cdaf8afacf07a6c733e62fff72d460d61216

  • SSDEEP

    6144:YmcD66RRja5JGmrpQsK3RD2u270jupCJsCxCS:xcD663jZ2zkPaCxR

Malware Config

Extracted

Family

cybergate

Version

2.6

Botnet

ÖÍíÉ

C2

ay0b.no-ip.org:82

Mutex

***MUTEX***

Attributes
  • enable_keylogger

    true

  • enable_message_box

    false

  • ftp_directory

    ./logs/

  • ftp_interval

    30

  • injected_process

    svchost.exe

  • install_file

    windows.exe

  • install_flag

    true

  • keylogger_enable_ftp

    false

  • message_box_caption

    texto da mensagem

  • message_box_title

    título da mensagem

  • password

    abcd1234

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 10 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.

  • Drops file in System32 directory 2 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:2724
      • C:\Users\Admin\AppData\Local\Temp\81fe468e16bbdd850a9ed7e434e52ea8d36c177cd1946bb6a28708b93123b03b.exe
        "C:\Users\Admin\AppData\Local\Temp\81fe468e16bbdd850a9ed7e434e52ea8d36c177cd1946bb6a28708b93123b03b.exe"
        2⤵
        • Adds policy Run key to start application
        • Modifies Installed Components in the registry
        • Drops file in System32 directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of WriteProcessMemory
        PID:4876
        • C:\Windows\SysWOW64\explorer.exe
          explorer.exe
          3⤵
          • Modifies Installed Components in the registry
          PID:4116
        • C:\Users\Admin\AppData\Local\Temp\81fe468e16bbdd850a9ed7e434e52ea8d36c177cd1946bb6a28708b93123b03b.exe
          "C:\Users\Admin\AppData\Local\Temp\81fe468e16bbdd850a9ed7e434e52ea8d36c177cd1946bb6a28708b93123b03b.exe"
          3⤵
          • Checks computer location settings
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of AdjustPrivilegeToken
          PID:4184
          • C:\Windows\SysWOW64\windows.exe
            "C:\Windows\system32\windows.exe"
            4⤵
            • Executes dropped EXE
            PID:1972
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 1972 -s 564
              5⤵
              • Program crash
              PID:2932
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 376 -p 1972 -ip 1972
      1⤵
        PID:4316

      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

              f193057f686285947b001a45bba78f77

              SHA1

              003150b3c146fc236412e39b1420ed389e3b32fc

              SHA256

              6583dbfc2a1d9bc68cb1ed19b1c9bd272a2b5878b2be92a11f7d2ead5e96d4f4

              SHA512

              6fa297f5f284576b6f2d20a4c61ff0c83dc1e704dc90e9d6d1529fb438a37322e556b9dfd80bc74c041e01f299b931a4c1d557e7c88915f785fac97807eefe8a

            • C:\Windows\SysWOW64\windows.exe

              Filesize

              290KB

              MD5

              1231f10478b371cd559c12dcad52e031

              SHA1

              172a3c9ab555c6129d9b01e8c40127b293ab37e6

              SHA256

              81fe468e16bbdd850a9ed7e434e52ea8d36c177cd1946bb6a28708b93123b03b

              SHA512

              7492b3248692861fa5221edcf5f71443ee18f2e60ac92fb3d538e4559fb18954a4c60584c9b39b8acebc4646c106cdaf8afacf07a6c733e62fff72d460d61216

            • C:\Windows\SysWOW64\windows.exe

              Filesize

              290KB

              MD5

              1231f10478b371cd559c12dcad52e031

              SHA1

              172a3c9ab555c6129d9b01e8c40127b293ab37e6

              SHA256

              81fe468e16bbdd850a9ed7e434e52ea8d36c177cd1946bb6a28708b93123b03b

              SHA512

              7492b3248692861fa5221edcf5f71443ee18f2e60ac92fb3d538e4559fb18954a4c60584c9b39b8acebc4646c106cdaf8afacf07a6c733e62fff72d460d61216

            • memory/4116-143-0x0000000024080000-0x00000000240E2000-memory.dmp

              Filesize

              392KB

            • memory/4116-142-0x0000000024080000-0x00000000240E2000-memory.dmp

              Filesize

              392KB

            • memory/4116-159-0x0000000024080000-0x00000000240E2000-memory.dmp

              Filesize

              392KB

            • memory/4184-155-0x00000000240F0000-0x0000000024152000-memory.dmp

              Filesize

              392KB

            • memory/4184-158-0x00000000240F0000-0x0000000024152000-memory.dmp

              Filesize

              392KB

            • memory/4184-160-0x00000000240F0000-0x0000000024152000-memory.dmp

              Filesize

              392KB

            • memory/4876-134-0x0000000024010000-0x0000000024072000-memory.dmp

              Filesize

              392KB

            • memory/4876-147-0x00000000023F0000-0x0000000002452000-memory.dmp

              Filesize

              392KB

            • memory/4876-152-0x00000000240F0000-0x0000000024152000-memory.dmp

              Filesize

              392KB

            • memory/4876-139-0x0000000024080000-0x00000000240E2000-memory.dmp

              Filesize

              392KB