Overview

overview

10

Static

static

1

segura.vbs

windows7-x64

10

segura.vbs

windows10-2004-x64

10

Sharing

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General

  • Target
    segura.vbs
  • Size 28.3MB
  • Sample241104-gvcpgavhra
  • SHA256 449cfb586898cdc0e432940983eca397fe1fb06d83bc87d51a8ee6a3f5eaa062
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
remcostar2defense_evasiondiscoveryexecutionrat

Malware Config

Extracted

Language

  • ps1

Source
URLs
  • exe.dropper

    https://pastebin.com/raw/J6uRjZrv

Extracted

Family

  • remcos

Botnet

  • Tar2

C2

  • 21oct.duckdns.org:2404

Attributes
  • audio_folder

    MicRecords

  • audio_path

    ApplicationPath

  • 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-BN9MOJ

  • 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
      segura.vbs
    • Size 28.3MB
    • SHA256 449cfb586898cdc0e432940983eca397fe1fb06d83bc87d51a8ee6a3f5eaa062
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    defense_evasiondiscoveryexecutionremcostar2rat

    • Remcos

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

      ratremcos

    • Remcos family

      remcos

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

      execution

    • Command and Scripting Interpreter: PowerShell

      Powershell Invoke Web Request.

      execution

    • Checks computer location settings

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

    • Legitimate hosting services abused for malware hosting/C2

    • Obfuscated Files or Information: Command Obfuscation

      Adversaries may obfuscate content during command execution to impede detection.

      defense_evasion

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks