Analysis

  • max time kernel
    140s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-05-2024 20:59

General

  • Target

    87dde0458819fac4aaa85eca383b44a0_NeikiAnalytics.exe

  • Size

    1.6MB

  • MD5

    87dde0458819fac4aaa85eca383b44a0

  • SHA1

    ac3055bd36ad417f1d0f9d85e39deb07a69d5843

  • SHA256

    9e0706ebee4a4c96e31e0bb3844179aebf95576242e2d71c5185defd73a1d72e

  • SHA512

    19fe1e347c3a6ea7d005c5ce2968f2ab263cd0ad68b33eef049320234fdc4a2dbc00546d6e2c67acbec8d8747ba9830b378a2afed99b001b4416db92914ae228

  • SSDEEP

    24576:CD39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPjYR:Cp7E+QrFUBgq2E

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 12 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\87dde0458819fac4aaa85eca383b44a0_NeikiAnalytics.exe
    "C:\Users\Admin\AppData\Local\Temp\87dde0458819fac4aaa85eca383b44a0_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:4636
    • 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:3852
      • 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:4548

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe

    Filesize

    1.6MB

    MD5

    3837e2f591e4fb30c864a92ee108fb68

    SHA1

    01439fa60b2084a9305c2f97a053dfde3ca9a0ec

    SHA256

    bf4519195c48c669dac9b475ae511c043106464c2f4da4043387421e2567fbd1

    SHA512

    5062b0ac9c5fe81435f75c50c38a358b24ccf4cbbcca18e1cdf9eecd42a32afc321876386abfbafcf33e811d6d015eaa3b92bcce295cbcd2ed19df2b135fca75

  • memory/3852-27-0x00000000745F0000-0x0000000074BA1000-memory.dmp

    Filesize

    5.7MB

  • memory/3852-42-0x00000000745F0000-0x0000000074BA1000-memory.dmp

    Filesize

    5.7MB

  • memory/3852-29-0x00000000745F0000-0x0000000074BA1000-memory.dmp

    Filesize

    5.7MB

  • memory/3852-30-0x00000000745F0000-0x0000000074BA1000-memory.dmp

    Filesize

    5.7MB

  • memory/3852-28-0x00000000745F0000-0x0000000074BA1000-memory.dmp

    Filesize

    5.7MB

  • memory/4548-34-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/4548-31-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/4548-38-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/4548-40-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/4548-35-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/4548-41-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/4548-45-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/4636-26-0x00000000745F0000-0x0000000074BA1000-memory.dmp

    Filesize

    5.7MB

  • memory/4636-4-0x00000000745F0000-0x0000000074BA1000-memory.dmp

    Filesize

    5.7MB

  • memory/4636-3-0x00000000745F0000-0x0000000074BA1000-memory.dmp

    Filesize

    5.7MB

  • memory/4636-2-0x00000000745F0000-0x0000000074BA1000-memory.dmp

    Filesize

    5.7MB

  • memory/4636-0-0x00000000745F2000-0x00000000745F3000-memory.dmp

    Filesize

    4KB

  • memory/4636-1-0x00000000745F0000-0x0000000074BA1000-memory.dmp

    Filesize

    5.7MB