Overview

overview

10

Static

static

EKX.exe

windows7-x64

10

EKX.exe

windows10-2004-x64

10

Sharing

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General

  • Target
    EKX.exe
  • Size 958KB
  • Sample230126-rl9mysdh88
  • SHA256 a223dbd3e666c66e48d38bbc2e552a39bbfeb5f8b1663cdfa1d4a28543980c79
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
remcoseric-host 2023persistencerat

Malware Config

Extracted

Family

  • remcos

Botnet

  • Eric-Host 2023

C2

  • craigjonson1.gotdns.ch:2011

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    trs.exe

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    true

  • install_flag

    true

  • install_path

    %AppData%

  • keylog_crypt

    true

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    Rmc-Z2FLAS

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    ee

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target
      EKX.exe
    • Size 958KB
    • SHA256 a223dbd3e666c66e48d38bbc2e552a39bbfeb5f8b1663cdfa1d4a28543980c79
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    remcoseric-host 2023persistencerat

    • Remcos

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

      ratremcos

    • Executes dropped EXE

    • Checks computer location settings

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

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v6

Tasks