General

  • Target

    92dbf37835455cd68d10e5cf6f750ec2d72de8ec7b8d92ffb751f7ceb8653523.vbs

  • Size

    15KB

  • Sample

    241105-ejch8atkbz

  • MD5

    55c8ee8061b9a47f8f6e66b3e8af9f6a

  • SHA1

    a8d0c9f6bea7fc5c13dfe86c5beca52457dd6a3c

  • SHA256

    92dbf37835455cd68d10e5cf6f750ec2d72de8ec7b8d92ffb751f7ceb8653523

  • SHA512

    84cb1f3b8063dedff0ffcce545eb96a0411341e924d22088a1a63ad6c2c45a8980718b881f8fb323cd2c7a01618daed6da610a018c4ac2e45640e7b15b69cb90

  • SSDEEP

    384:qbURUoc1vcM7vqGgTUIk0AZl5UYQdRmFhqm5pd:0KJ0GV7U5crm7qYpd

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

ris4sts8yan0i.duckdns.org:23458

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

    true

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-LAZAF7

  • 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

      92dbf37835455cd68d10e5cf6f750ec2d72de8ec7b8d92ffb751f7ceb8653523.vbs

    • Size

      15KB

    • MD5

      55c8ee8061b9a47f8f6e66b3e8af9f6a

    • SHA1

      a8d0c9f6bea7fc5c13dfe86c5beca52457dd6a3c

    • SHA256

      92dbf37835455cd68d10e5cf6f750ec2d72de8ec7b8d92ffb751f7ceb8653523

    • SHA512

      84cb1f3b8063dedff0ffcce545eb96a0411341e924d22088a1a63ad6c2c45a8980718b881f8fb323cd2c7a01618daed6da610a018c4ac2e45640e7b15b69cb90

    • SSDEEP

      384:qbURUoc1vcM7vqGgTUIk0AZl5UYQdRmFhqm5pd:0KJ0GV7U5crm7qYpd

    • Remcos

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

    • Remcos family

    • UAC bypass

    • 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

    • Uses browser remote debugging

      Can be used control the browser and steal sensitive information such as credentials and session cookies.

    • Checks computer location settings

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

    • Accesses Microsoft Outlook accounts

    • Legitimate hosting services abused for malware hosting/C2

    • Network Service Discovery

      Attempt to gather information on host's network.

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks