Analysis

  • max time kernel
    150s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/10/2022, 15:09

General

  • Target

    a0f57721ec4dc0fa1625d491b37d708e04473e07a82ff642147e2f6707524227.exe

  • Size

    291KB

  • MD5

    46b7c051ab3ab7cfe0ba94ab03600ac0

  • SHA1

    d0f8060f66da4cc294c805f193188a476eb2690b

  • SHA256

    a0f57721ec4dc0fa1625d491b37d708e04473e07a82ff642147e2f6707524227

  • SHA512

    8666135e4d986f041297ea29fe16c6113992fc58e8de69c03aaeed66ee9453c30d1ce16c9b62332b3281abfc3a6f1acd28dc044db2d465a49c68da0c776d9c78

  • SSDEEP

    6144:gk4qmi5TgnkuhnEKZ5VyBDFFnPFPohsOQzmL6Z+1U7+aKpV:b9unk1KZn2fPmEzm+7d6

Malware Config

Extracted

Family

cybergate

Version

2.6

Botnet

teste

C2

192.168.0.101:8080

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

    texto da mensagem

  • message_box_title

    título da mensagem

  • password

    123

  • regkey_hkcu

    system32

  • regkey_hklm

    system

Signatures

  • CyberGate, Rebhip

    CyberGate is a lightweight remote administration tool with a wide array of functionalities.

  • Executes dropped EXE 1 IoCs
  • Modifies Installed Components in the registry 2 TTPs 4 IoCs
  • UPX packed file 16 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: 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:2756
      • C:\Users\Admin\AppData\Local\Temp\a0f57721ec4dc0fa1625d491b37d708e04473e07a82ff642147e2f6707524227.exe
        "C:\Users\Admin\AppData\Local\Temp\a0f57721ec4dc0fa1625d491b37d708e04473e07a82ff642147e2f6707524227.exe"
        2⤵
        • Modifies Installed Components in the registry
        • Adds Run key to start application
        • Drops file in System32 directory
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of WriteProcessMemory
        PID:1716
        • C:\Windows\SysWOW64\explorer.exe
          explorer.exe
          3⤵
          • Modifies Installed Components in the registry
          PID:840
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe"
          3⤵
            PID:4888
          • C:\Users\Admin\AppData\Local\Temp\a0f57721ec4dc0fa1625d491b37d708e04473e07a82ff642147e2f6707524227.exe
            "C:\Users\Admin\AppData\Local\Temp\a0f57721ec4dc0fa1625d491b37d708e04473e07a82ff642147e2f6707524227.exe"
            3⤵
            • Checks computer location settings
            • Drops file in System32 directory
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of AdjustPrivilegeToken
            PID:3124
            • C:\Windows\SysWOW64\install\server.exe
              "C:\Windows\system32\install\server.exe"
              4⤵
              • Executes dropped EXE
              PID:1732
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 1732 -s 580
                5⤵
                • Program crash
                PID:4812
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 1732 -ip 1732
        1⤵
          PID:1084

        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

                75c3f57a9fee88fcd8d2262a01ed0553

                SHA1

                e2f52d1b2132092ecea3930a9ee6c59cfdbee80d

                SHA256

                2be848ff0e958678e4db87d3ee519d1d098f59a93c1d1258692e3ae94d1aaf8b

                SHA512

                f412b38d0b6830a70af58891f2d9d69cb219eb399f44c6c8aa75bba6b649dca65dc2e3f3ab3290ef207f442f7bb337a38e1cbbeaa45235d0e6eded7b624b61f4

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

                Filesize

                291KB

                MD5

                46b7c051ab3ab7cfe0ba94ab03600ac0

                SHA1

                d0f8060f66da4cc294c805f193188a476eb2690b

                SHA256

                a0f57721ec4dc0fa1625d491b37d708e04473e07a82ff642147e2f6707524227

                SHA512

                8666135e4d986f041297ea29fe16c6113992fc58e8de69c03aaeed66ee9453c30d1ce16c9b62332b3281abfc3a6f1acd28dc044db2d465a49c68da0c776d9c78

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

                Filesize

                291KB

                MD5

                46b7c051ab3ab7cfe0ba94ab03600ac0

                SHA1

                d0f8060f66da4cc294c805f193188a476eb2690b

                SHA256

                a0f57721ec4dc0fa1625d491b37d708e04473e07a82ff642147e2f6707524227

                SHA512

                8666135e4d986f041297ea29fe16c6113992fc58e8de69c03aaeed66ee9453c30d1ce16c9b62332b3281abfc3a6f1acd28dc044db2d465a49c68da0c776d9c78

              • memory/840-143-0x0000000024080000-0x00000000240E2000-memory.dmp

                Filesize

                392KB

              • memory/840-162-0x0000000024080000-0x00000000240E2000-memory.dmp

                Filesize

                392KB

              • memory/840-142-0x0000000024080000-0x00000000240E2000-memory.dmp

                Filesize

                392KB

              • memory/1716-157-0x0000000000400000-0x0000000000466000-memory.dmp

                Filesize

                408KB

              • memory/1716-132-0x0000000000400000-0x0000000000466000-memory.dmp

                Filesize

                408KB

              • memory/1716-139-0x0000000024080000-0x00000000240E2000-memory.dmp

                Filesize

                392KB

              • memory/1716-147-0x00000000240F0000-0x0000000024152000-memory.dmp

                Filesize

                392KB

              • memory/1716-153-0x0000000024160000-0x00000000241C2000-memory.dmp

                Filesize

                392KB

              • memory/1716-134-0x0000000024010000-0x0000000024072000-memory.dmp

                Filesize

                392KB

              • memory/1732-160-0x0000000000400000-0x0000000000466000-memory.dmp

                Filesize

                408KB

              • memory/3124-156-0x0000000024160000-0x00000000241C2000-memory.dmp

                Filesize

                392KB

              • memory/3124-152-0x0000000000400000-0x0000000000466000-memory.dmp

                Filesize

                408KB

              • memory/3124-161-0x0000000024160000-0x00000000241C2000-memory.dmp

                Filesize

                392KB

              • memory/3124-163-0x0000000024160000-0x00000000241C2000-memory.dmp

                Filesize

                392KB