Analysis

  • max time kernel
    142s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/06/2024, 06:38

General

  • Target
    5db2cbf2646683e1cb0ca4e56ac8a3d97ed9285255bb02e3b312b4063ad0fef3_NeikiAnalytics.exe
  • Size 1.7MB
  • Sample240627-hd6rnazbkm
  • SHA256 5db2cbf2646683e1cb0ca4e56ac8a3d97ed9285255bb02e3b312b4063ad0fef3
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • remcos

Version
  • 1.7 Pro

Botnet
  • Host

C2
  • 213.183.58.19:4000

Attributes
  • audio_folder

    audio

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    5

  • copy_file

    remcos.exe

  • copy_folder

    remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    true

  • install_flag

    false

  • install_path

    %AppData%

  • keylog_crypt

    true

  • keylog_file

    read.dat

  • keylog_flag

    false

  • keylog_folder

    CastC

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    remcos_sccafsoidz

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screens

  • screenshot_path

    %AppData%

  • screenshot_time

    1

  • startup_value

    remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Remcos

    Remcos is a closed-source remote control and surveillance software.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 18 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5db2cbf2646683e1cb0ca4e56ac8a3d97ed9285255bb02e3b312b4063ad0fef3_NeikiAnalytics.exe
    "C:\Users\Admin\AppData\Local\Temp\5db2cbf2646683e1cb0ca4e56ac8a3d97ed9285255bb02e3b312b4063ad0fef3_NeikiAnalytics.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1364
    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3372
      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe
        "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        PID:3460
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4068 --field-trial-handle=2900,i,14549994492153927475,12895178890800740987,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:4984

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          sbietrcl.exe

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe
          • Size 1.7MB
          • SHA256 1da703522f60dd2e39fbe5e2df6ccf124029970d7ecd6350bf92d7989e286e1d
          • MD5 SHA1 SHA512 SSDEEP

          memory/1364-0-0x00000000750F2000-0x00000000750F3000-memory.dmp

          memory/1364-1-0x00000000750F0000-0x00000000756A1000-memory.dmp

          memory/1364-2-0x00000000750F0000-0x00000000756A1000-memory.dmp

          memory/1364-5-0x00000000750F0000-0x00000000756A1000-memory.dmp

          memory/1364-6-0x00000000750F0000-0x00000000756A1000-memory.dmp

          memory/1364-28-0x00000000750F0000-0x00000000756A1000-memory.dmp

          memory/3372-30-0x00000000750F0000-0x00000000756A1000-memory.dmp

          memory/3372-29-0x00000000750F0000-0x00000000756A1000-memory.dmp

          memory/3372-31-0x00000000750F0000-0x00000000756A1000-memory.dmp

          memory/3372-43-0x00000000750F0000-0x00000000756A1000-memory.dmp

          memory/3460-32-0x0000000000400000-0x0000000000417000-memory.dmp

          memory/3460-35-0x0000000000400000-0x0000000000417000-memory.dmp

          memory/3460-40-0x0000000000400000-0x0000000000417000-memory.dmp

          memory/3460-37-0x0000000000400000-0x0000000000417000-memory.dmp

          memory/3460-41-0x0000000000400000-0x0000000000417000-memory.dmp

          memory/3460-42-0x0000000000400000-0x0000000000417000-memory.dmp

          memory/3460-46-0x0000000000400000-0x0000000000417000-memory.dmp