Overview

overview

10

Static

static

1

sostener.vbs

windows7-x64

8

sostener.vbs

windows10-2004-x64

10

Sharing

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General

  • Target
    sostener.vbs
  • Size 14KB
  • Sample240826-e9yt5svgre
  • SHA256 babc0e3f52501b3128c5b0d806696a82c6575d7194a721d0e354d9bc7b077d91
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
remcosremotehostdiscoveryexecutionpersistencerat

Malware Config

Extracted

Family

  • remcos

Botnet

  • RemoteHost

C2

  • rcmx.duckdns.org:57870

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-C6XZAO

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target
      sostener.vbs
    • Size 14KB
    • SHA256 babc0e3f52501b3128c5b0d806696a82c6575d7194a721d0e354d9bc7b077d91
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    executionremcosremotehostdiscoverypersistencerat

    • Remcos

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

      ratremcos

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

      execution

    • Checks computer location settings

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

    • Adds Run key to start application

      persistence

    • Legitimate hosting services abused for malware hosting/C2

    • Enumerates processes with tasklist

      discovery

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks