Analysis

  • max time kernel
    149s
  • max time network
    96s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14/07/2024, 17:36

General

  • Target
    50b9443ba229545f4876815569422829ec0ea6123c02d67152e1858166c8dbf0.exe
  • Size 2.2MB
  • Sample240714-v6jttazhmk
  • SHA256 50b9443ba229545f4876815569422829ec0ea6123c02d67152e1858166c8dbf0
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • remcos

Version
  • 4.9.3 Light

Botnet
  • RemoteHost

C2
  • 127.0.0.1:2404

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    remcos.exe

  • copy_folder

    Remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    false

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-52SPIJ

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Remcos

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\50b9443ba229545f4876815569422829ec0ea6123c02d67152e1858166c8dbf0.exe
    "C:\Users\Admin\AppData\Local\Temp\50b9443ba229545f4876815569422829ec0ea6123c02d67152e1858166c8dbf0.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:3188
    • C:\Users\Admin\AppData\Local\Temp\50b9443ba229545f4876815569422829ec0ea6123c02d67152e1858166c8dbf0.exe
      "C:\Users\Admin\AppData\Local\Temp\50b9443ba229545f4876815569422829ec0ea6123c02d67152e1858166c8dbf0.exe"
      2⤵
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:4192

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/3188-1-0x0000000000400000-0x0000000000640000-memory.dmp

        memory/3188-0-0x0000000000400000-0x0000000000640000-memory.dmp

        memory/3188-3-0x0000000000400000-0x0000000000640000-memory.dmp

        memory/3188-2-0x0000000000408000-0x0000000000422000-memory.dmp

        memory/3188-7-0x0000000000400000-0x0000000000640000-memory.dmp

        memory/4192-4-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4192-5-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4192-6-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4192-8-0x0000000000400000-0x0000000000640000-memory.dmp

        memory/4192-9-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4192-10-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4192-11-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4192-12-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4192-13-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4192-14-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4192-15-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4192-16-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4192-17-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4192-18-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4192-19-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4192-20-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4192-21-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4192-22-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4192-23-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4192-24-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4192-25-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4192-26-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4192-27-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4192-28-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4192-29-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4192-30-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4192-31-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4192-32-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4192-33-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4192-34-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4192-35-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4192-36-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4192-37-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4192-38-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4192-39-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4192-40-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4192-41-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4192-42-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4192-43-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4192-44-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4192-45-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4192-46-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4192-47-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4192-48-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4192-49-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4192-50-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4192-51-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4192-52-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4192-53-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4192-54-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4192-55-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4192-56-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4192-57-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4192-58-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4192-59-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4192-60-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4192-61-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4192-62-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4192-63-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4192-64-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4192-65-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4192-66-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4192-67-0x00000000000C0000-0x0000000000135000-memory.dmp