Analysis

  • max time kernel
    381s
  • max time network
    439s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/12/2022, 22:25

General

  • Target

    c73f9f42950ae6a2cb95878a2b494139ba819ab3ccd9d0853783f4eca2500b62.exe

  • Size

    457KB

  • MD5

    5a5862e77b9fea4402ba14dd540f61ca

  • SHA1

    60c2ac95f800f83b98b3e43fba495917e5604d65

  • SHA256

    c73f9f42950ae6a2cb95878a2b494139ba819ab3ccd9d0853783f4eca2500b62

  • SHA512

    9289e20cf2c2560c16fd1d621c9120989bf3d1faa75896eabb2a9c8e72117543f58a1831db0b0c3391fbff253cca6c70328384e61387a45eb59e228ae15043e8

  • SSDEEP

    6144:iYurkSh4HjSh4HobUbZ1Hr1+O4ToRywuBrc2nQqXUlUP9Zu7rycpUpd0Ufi8Zglb:vurDr1e5r1+1mZm4CQqIUj8rAd0YHXM

Malware Config

Extracted

Family

cybergate

Version

v1.07.5

Botnet

remote

C2

127.0.0.1:1458

Mutex

B4C2NW20N6BUV8

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

    Remote Administration anywhere in the world.

  • message_box_title

    CyberGate

  • password

    cybergate

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 4 IoCs
  • Modifies Installed Components in the registry 2 TTPs 2 IoCs
  • UPX packed file 5 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c73f9f42950ae6a2cb95878a2b494139ba819ab3ccd9d0853783f4eca2500b62.exe
    "C:\Users\Admin\AppData\Local\Temp\c73f9f42950ae6a2cb95878a2b494139ba819ab3ccd9d0853783f4eca2500b62.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2412
    • C:\Users\Admin\AppData\Local\Temp\c73f9f42950ae6a2cb95878a2b494139ba819ab3ccd9d0853783f4eca2500b62.exe
      "C:\Users\Admin\AppData\Local\Temp\c73f9f42950ae6a2cb95878a2b494139ba819ab3ccd9d0853783f4eca2500b62.exe"
      2⤵
      • Adds policy Run key to start application
      • Modifies Installed Components in the registry
      • Checks computer location settings
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4036
      • C:\Program Files\Internet Explorer\iexplore.exe
        "C:\Program Files\Internet Explorer\iexplore.exe"
        3⤵
          PID:1504
        • C:\Users\Admin\AppData\Local\Temp\c73f9f42950ae6a2cb95878a2b494139ba819ab3ccd9d0853783f4eca2500b62.exe
          "C:\Users\Admin\AppData\Local\Temp\c73f9f42950ae6a2cb95878a2b494139ba819ab3ccd9d0853783f4eca2500b62.exe"
          3⤵
          • Checks computer location settings
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of AdjustPrivilegeToken
          PID:3856
          • C:\directory\CyberGate\install\server.exe
            "C:\directory\CyberGate\install\server.exe"
            4⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of SetWindowsHookEx
            PID:1008
            • C:\directory\CyberGate\install\server.exe
              "C:\directory\CyberGate\install\server.exe"
              5⤵
              • Executes dropped EXE
              • Suspicious behavior: EnumeratesProcesses
              PID:3576
        • C:\directory\CyberGate\install\server.exe
          "C:\directory\CyberGate\install\server.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious use of SetWindowsHookEx
          PID:2284
          • C:\directory\CyberGate\install\server.exe
            "C:\directory\CyberGate\install\server.exe"
            4⤵
            • Executes dropped EXE
            • Suspicious behavior: EnumeratesProcesses
            PID:5048

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\Admin2.txt

      Filesize

      224KB

      MD5

      9e090dc0fd04d12ffb514c3ece757bd2

      SHA1

      5bff0e9b9cb4d5538827ea4440c2149bfa91a037

      SHA256

      3efa00a77dc35fedf2a58b57f3cf1002908683536637ebbcbc5284d66f194ff3

      SHA512

      696bce23d61806527a4fa9e153ea44573c84eb3acc2ff3390606ce23f1b9b952ff002981125b048dd6d56cfb65ea208d5b76fa77ef260864337e3cc567a64f51

    • C:\directory\CyberGate\install\server.exe

      Filesize

      457KB

      MD5

      5a5862e77b9fea4402ba14dd540f61ca

      SHA1

      60c2ac95f800f83b98b3e43fba495917e5604d65

      SHA256

      c73f9f42950ae6a2cb95878a2b494139ba819ab3ccd9d0853783f4eca2500b62

      SHA512

      9289e20cf2c2560c16fd1d621c9120989bf3d1faa75896eabb2a9c8e72117543f58a1831db0b0c3391fbff253cca6c70328384e61387a45eb59e228ae15043e8

    • C:\directory\CyberGate\install\server.exe

      Filesize

      457KB

      MD5

      5a5862e77b9fea4402ba14dd540f61ca

      SHA1

      60c2ac95f800f83b98b3e43fba495917e5604d65

      SHA256

      c73f9f42950ae6a2cb95878a2b494139ba819ab3ccd9d0853783f4eca2500b62

      SHA512

      9289e20cf2c2560c16fd1d621c9120989bf3d1faa75896eabb2a9c8e72117543f58a1831db0b0c3391fbff253cca6c70328384e61387a45eb59e228ae15043e8

    • C:\directory\CyberGate\install\server.exe

      Filesize

      457KB

      MD5

      5a5862e77b9fea4402ba14dd540f61ca

      SHA1

      60c2ac95f800f83b98b3e43fba495917e5604d65

      SHA256

      c73f9f42950ae6a2cb95878a2b494139ba819ab3ccd9d0853783f4eca2500b62

      SHA512

      9289e20cf2c2560c16fd1d621c9120989bf3d1faa75896eabb2a9c8e72117543f58a1831db0b0c3391fbff253cca6c70328384e61387a45eb59e228ae15043e8

    • C:\directory\CyberGate\install\server.exe

      Filesize

      457KB

      MD5

      5a5862e77b9fea4402ba14dd540f61ca

      SHA1

      60c2ac95f800f83b98b3e43fba495917e5604d65

      SHA256

      c73f9f42950ae6a2cb95878a2b494139ba819ab3ccd9d0853783f4eca2500b62

      SHA512

      9289e20cf2c2560c16fd1d621c9120989bf3d1faa75896eabb2a9c8e72117543f58a1831db0b0c3391fbff253cca6c70328384e61387a45eb59e228ae15043e8

    • C:\directory\CyberGate\install\server.exe

      Filesize

      457KB

      MD5

      5a5862e77b9fea4402ba14dd540f61ca

      SHA1

      60c2ac95f800f83b98b3e43fba495917e5604d65

      SHA256

      c73f9f42950ae6a2cb95878a2b494139ba819ab3ccd9d0853783f4eca2500b62

      SHA512

      9289e20cf2c2560c16fd1d621c9120989bf3d1faa75896eabb2a9c8e72117543f58a1831db0b0c3391fbff253cca6c70328384e61387a45eb59e228ae15043e8

    • memory/3576-176-0x0000000000400000-0x000000000044F000-memory.dmp

      Filesize

      316KB

    • memory/3576-173-0x0000000000400000-0x000000000044F000-memory.dmp

      Filesize

      316KB

    • memory/3856-149-0x0000000010480000-0x00000000104E5000-memory.dmp

      Filesize

      404KB

    • memory/3856-152-0x0000000010480000-0x00000000104E5000-memory.dmp

      Filesize

      404KB

    • memory/3856-168-0x0000000010480000-0x00000000104E5000-memory.dmp

      Filesize

      404KB

    • memory/4036-139-0x0000000000400000-0x000000000044F000-memory.dmp

      Filesize

      316KB

    • memory/4036-137-0x0000000000400000-0x000000000044F000-memory.dmp

      Filesize

      316KB

    • memory/4036-157-0x0000000000400000-0x000000000044F000-memory.dmp

      Filesize

      316KB

    • memory/4036-138-0x0000000000400000-0x000000000044F000-memory.dmp

      Filesize

      316KB

    • memory/4036-136-0x0000000000400000-0x000000000044F000-memory.dmp

      Filesize

      316KB

    • memory/4036-135-0x0000000000400000-0x000000000044F000-memory.dmp

      Filesize

      316KB

    • memory/4036-146-0x0000000010480000-0x00000000104E5000-memory.dmp

      Filesize

      404KB

    • memory/4036-141-0x0000000010410000-0x0000000010475000-memory.dmp

      Filesize

      404KB

    • memory/5048-171-0x0000000000400000-0x000000000044F000-memory.dmp

      Filesize

      316KB

    • memory/5048-174-0x0000000000400000-0x000000000044F000-memory.dmp

      Filesize

      316KB

    • memory/5048-175-0x0000000000400000-0x000000000044F000-memory.dmp

      Filesize

      316KB