General

  • Target

    7d9aaab519a7c1247963967a928107516c36dae564a31c230dcc2ba6c9cb6b15.vbs

  • Size

    591KB

  • Sample

    241004-b3c3baxenp

  • MD5

    9b36a3c24abb6bc8694e48e0c101c416

  • SHA1

    6fd1c1c65d63f349734f2efcce64c88b3efd5e45

  • SHA256

    7d9aaab519a7c1247963967a928107516c36dae564a31c230dcc2ba6c9cb6b15

  • SHA512

    e22e5725ff50239c8df0ea9010ea389bdd79392dbcf01d65c9af5a32fd0084f501db879fcee5dfee0a2d02c9626d7d8f61abb240189d9fcf6ae00b1602298f64

  • SSDEEP

    1536:rcccccccccccccccccq99999999999999999999999999999999999999999999n:J

Malware Config

Extracted

Language
ps1
Source
URLs
exe.dropper

https://drive.google.com/uc?export=download&id=

Extracted

Credentials

  • Protocol:
    ftp
  • Host:
    ftp.desckvbrat.com.br
  • Port:
    21
  • Username:
    desckvbrat1
  • Password:
    developerpro21578Jp@@

Extracted

Family

remcos

Botnet

NedDay

C2

212.162.149.163:2404

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

    1210

  • mouse_option

    false

  • mutex

    Rmc-52K54M

  • 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

      7d9aaab519a7c1247963967a928107516c36dae564a31c230dcc2ba6c9cb6b15.vbs

    • Size

      591KB

    • MD5

      9b36a3c24abb6bc8694e48e0c101c416

    • SHA1

      6fd1c1c65d63f349734f2efcce64c88b3efd5e45

    • SHA256

      7d9aaab519a7c1247963967a928107516c36dae564a31c230dcc2ba6c9cb6b15

    • SHA512

      e22e5725ff50239c8df0ea9010ea389bdd79392dbcf01d65c9af5a32fd0084f501db879fcee5dfee0a2d02c9626d7d8f61abb240189d9fcf6ae00b1602298f64

    • SSDEEP

      1536:rcccccccccccccccccq99999999999999999999999999999999999999999999n:J

    • Remcos

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

    • Blocklisted process makes network request

    • Checks computer location settings

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

    • Drops startup file

    • Adds Run key to start application

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Indicator Removal: File Deletion

      Adversaries may delete files left behind by the actions of their intrusion activity.

    • Legitimate hosting services abused for malware hosting/C2

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks