Analysis

  • max time kernel
    149s
  • max time network
    150s
  • 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, 20:36

General

  • Target
    27b06a29b2875e0f7fe58b18fcdd33a0f8b72387721bda46753bef9b6cbffa4a.exe
  • Size 2.1MB
  • Sample240714-zdjesstdmk
  • SHA256 27b06a29b2875e0f7fe58b18fcdd33a0f8b72387721bda46753bef9b6cbffa4a
  • 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\27b06a29b2875e0f7fe58b18fcdd33a0f8b72387721bda46753bef9b6cbffa4a.exe
    "C:\Users\Admin\AppData\Local\Temp\27b06a29b2875e0f7fe58b18fcdd33a0f8b72387721bda46753bef9b6cbffa4a.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:2016
    • C:\Users\Admin\AppData\Local\Temp\27b06a29b2875e0f7fe58b18fcdd33a0f8b72387721bda46753bef9b6cbffa4a.exe
      "C:\Users\Admin\AppData\Local\Temp\27b06a29b2875e0f7fe58b18fcdd33a0f8b72387721bda46753bef9b6cbffa4a.exe"
      2⤵
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:4880

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/2016-1-0x0000000000407000-0x0000000000421000-memory.dmp

        memory/2016-0-0x0000000000400000-0x0000000000625000-memory.dmp

        memory/2016-2-0x0000000000400000-0x0000000000625000-memory.dmp

        memory/2016-3-0x0000000000400000-0x0000000000625000-memory.dmp

        memory/2016-6-0x0000000000400000-0x0000000000625000-memory.dmp

        memory/4880-4-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-8-0x0000000000400000-0x0000000000625000-memory.dmp

        memory/4880-7-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-5-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-9-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-10-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-11-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-12-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-13-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-14-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-15-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-16-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-17-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-18-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-19-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-20-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-21-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-22-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-23-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-24-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-25-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-26-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-27-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-28-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-29-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-30-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-31-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-32-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-33-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-34-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-35-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-36-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-37-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-38-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-39-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-40-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-41-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-42-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-43-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-44-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-45-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-46-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-47-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-48-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-49-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-50-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-51-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-52-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-53-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-54-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-55-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-56-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-57-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-58-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-59-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-60-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-61-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-62-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-63-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-64-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-65-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-66-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-67-0x00000000000C0000-0x0000000000135000-memory.dmp

        memory/4880-68-0x00000000000C0000-0x0000000000135000-memory.dmp