General

  • Target

    81bc33ce9bf2c1eaec168f5a5a4c2da715a2fcbc8972daa23834e22e3d27c547

  • Size

    35KB

  • Sample

    220621-l361hachan

  • MD5

    46c7424bbc974b8071f30e2c6494612b

  • SHA1

    7e957166a5a73c6e7ddf9af391fd1837f4339a99

  • SHA256

    81bc33ce9bf2c1eaec168f5a5a4c2da715a2fcbc8972daa23834e22e3d27c547

  • SHA512

    b8463d95dd900c9a543cf7d9f9c34d6d557b84688c84c3b68f026ffd3ba5fe909b785a7de69d6c75ade8327e059840d7fdaa27634df357e8aad591fbc7a40544

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

vivald21.hopto.org:9955

Attributes
  • audio_folder

    MicRecords

  • audio_path

    %AppData%

  • 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

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    Remcos-ZCNRVQ

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    Remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

  • take_screenshot_title

Targets

    • Target

      81bc33ce9bf2c1eaec168f5a5a4c2da715a2fcbc8972daa23834e22e3d27c547

    • Size

      35KB

    • MD5

      46c7424bbc974b8071f30e2c6494612b

    • SHA1

      7e957166a5a73c6e7ddf9af391fd1837f4339a99

    • SHA256

      81bc33ce9bf2c1eaec168f5a5a4c2da715a2fcbc8972daa23834e22e3d27c547

    • SHA512

      b8463d95dd900c9a543cf7d9f9c34d6d557b84688c84c3b68f026ffd3ba5fe909b785a7de69d6c75ade8327e059840d7fdaa27634df357e8aad591fbc7a40544

    • Remcos

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

    • Checks computer location settings

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

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks