General

  • Target

    mitradesignworkgoodforeveryoneforgiftedmbestthings.hta

  • Size

    207KB

  • Sample

    241113-h931mswqhw

  • MD5

    6e8e497a9ab2be601520a182073419f1

  • SHA1

    1f66efaeed5492931779fa941b1a67967f9c0ee2

  • SHA256

    faae949a7d2f32b0ae09b23d53d602dac380db26541952755c920773e46f8bcd

  • SHA512

    73b1035d2975aea8dc579a307fce7f2c15b1a240063dbfdb5b13e01571a5f188c25dc6f8ad9ed300e87c760ce1a2f0e6098f1cfb199ae03e28e9476766466895

  • SSDEEP

    96:43F97KoUXZbhIoUXZzhoZx79f+hs6oByayqoUXZSoUXZ4hMoUXZrQ:43F1NaZRaZKT9+7CyaytaZVaZ8aZrQ

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

https://1017.filemail.com/api/file/get?filekey=2Aa_bWo9Reu45t7BU1kVgsd9pT9pgSSlvStGrnTICfFhmTKj3LC6SQtIcOc_T35w&pk_vid=fd4f614bb209c62c1730945176a0904f

exe.dropper

https://1017.filemail.com/api/file/get?filekey=2Aa_bWo9Reu45t7BU1kVgsd9pT9pgSSlvStGrnTICfFhmTKj3LC6SQtIcOc_T35w&pk_vid=fd4f614bb209c62c1730945176a0904f

Extracted

Family

remcos

Botnet

RemoteHost-16465

C2

rem.aaahorneswll.com:16465

31.13.224.230:16465

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-80V4Z7

  • 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

      mitradesignworkgoodforeveryoneforgiftedmbestthings.hta

    • Size

      207KB

    • MD5

      6e8e497a9ab2be601520a182073419f1

    • SHA1

      1f66efaeed5492931779fa941b1a67967f9c0ee2

    • SHA256

      faae949a7d2f32b0ae09b23d53d602dac380db26541952755c920773e46f8bcd

    • SHA512

      73b1035d2975aea8dc579a307fce7f2c15b1a240063dbfdb5b13e01571a5f188c25dc6f8ad9ed300e87c760ce1a2f0e6098f1cfb199ae03e28e9476766466895

    • SSDEEP

      96:43F97KoUXZbhIoUXZzhoZx79f+hs6oByayqoUXZSoUXZ4hMoUXZrQ:43F1NaZRaZKT9+7CyaytaZVaZ8aZrQ

    • Remcos

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

    • Remcos family

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

    • Evasion via Device Credential Deployment

    • Checks computer location settings

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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks