General

  • Target

    c43aa71f1636522145ea3e384b2546d5a589260cd7a2cc42688dda5944215b68.vbs

  • Size

    71KB

  • Sample

    250101-dmfvdavmcl

  • MD5

    fc612d46cca59534577f51b16710b323

  • SHA1

    b65ef6cf8e46d38e2ab287f6584c8d456c36202d

  • SHA256

    c43aa71f1636522145ea3e384b2546d5a589260cd7a2cc42688dda5944215b68

  • SHA512

    33d74f868914c55269f10af4680500ddbcbd9968207180e160e92eb981c2140deea18b47d58ecb592437cc397c6e61853850752455b21acd2f7071e6755b1f7a

  • SSDEEP

    1536:ggz3v5pA6TiWl+GJFQdGJVfYRFSlntJOEDy:ggj5aUie+oQwJ5YRECEDy

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

154.216.18.62:2404

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-D98D6X

  • 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

      c43aa71f1636522145ea3e384b2546d5a589260cd7a2cc42688dda5944215b68.vbs

    • Size

      71KB

    • MD5

      fc612d46cca59534577f51b16710b323

    • SHA1

      b65ef6cf8e46d38e2ab287f6584c8d456c36202d

    • SHA256

      c43aa71f1636522145ea3e384b2546d5a589260cd7a2cc42688dda5944215b68

    • SHA512

      33d74f868914c55269f10af4680500ddbcbd9968207180e160e92eb981c2140deea18b47d58ecb592437cc397c6e61853850752455b21acd2f7071e6755b1f7a

    • SSDEEP

      1536:ggz3v5pA6TiWl+GJFQdGJVfYRFSlntJOEDy:ggj5aUie+oQwJ5YRECEDy

    • Remcos

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

    • Remcos family

    • Detected Nirsoft tools

      Free utilities often used by attackers which can steal passwords, product keys, etc.

    • NirSoft MailPassView

      Password recovery tool for various email clients

    • NirSoft WebBrowserPassView

      Password recovery tool for various web browsers

    • Blocklisted process makes network request

    • Checks computer location settings

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

    • Accesses Microsoft Outlook accounts

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks