General

  • Target

    b7b526bc95dc7757489534fb9591146922d686c6d6da3b58c28ac012c86163db

  • Size

    681KB

  • Sample

    240918-rnk3davgpc

  • MD5

    611fb2edd9cd895a627fde0f0f7d99b1

  • SHA1

    21e7cf72708e4e49bf485fb7f28b81df7874e930

  • SHA256

    b7b526bc95dc7757489534fb9591146922d686c6d6da3b58c28ac012c86163db

  • SHA512

    6aeefc8d5b26a5de88bd307f62b42bc8f04c405b0e4922709bfaaf1abf26c6441ac8c547192ce1e4e43752d7584381ec2a71bfb9e305c8b60e06e84e36ba9783

  • SSDEEP

    1536:9SSSSSSSSSSSSSSSSSSSSSSSx22222222222222222222222222222222222222x:d1n/DSw8Tc75y

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

Grace

C2

severdops.ddns.net:7717

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-P28XIL

  • 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

      b7b526bc95dc7757489534fb9591146922d686c6d6da3b58c28ac012c86163db

    • Size

      681KB

    • MD5

      611fb2edd9cd895a627fde0f0f7d99b1

    • SHA1

      21e7cf72708e4e49bf485fb7f28b81df7874e930

    • SHA256

      b7b526bc95dc7757489534fb9591146922d686c6d6da3b58c28ac012c86163db

    • SHA512

      6aeefc8d5b26a5de88bd307f62b42bc8f04c405b0e4922709bfaaf1abf26c6441ac8c547192ce1e4e43752d7584381ec2a71bfb9e305c8b60e06e84e36ba9783

    • SSDEEP

      1536:9SSSSSSSSSSSSSSSSSSSSSSSx22222222222222222222222222222222222222x:d1n/DSw8Tc75y

    • 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