General

  • Target

    4252980510d6ea59efb52bb30a67f8173b7f905e1ea368113ab6e60f2a99105b.vbs

  • Size

    561KB

  • Sample

    240924-bnktlsvhqd

  • MD5

    e5d5bfe30179b640a80ae3cc1640e486

  • SHA1

    5c5a868d8b688884b8a47deb61a3ee9ca08fbdd4

  • SHA256

    4252980510d6ea59efb52bb30a67f8173b7f905e1ea368113ab6e60f2a99105b

  • SHA512

    cae7eac6bf7106bb663c042f1ea77393a62b6ec9555667e07736997fc69f219fa83b30fcaf1c93a4a1a300879ec0fe33aa8cdc22d303f795f36dc285639f488b

  • SSDEEP

    1536:kmmmmmmmmmmmmmmmmmmyFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFp:vSe

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

      4252980510d6ea59efb52bb30a67f8173b7f905e1ea368113ab6e60f2a99105b.vbs

    • Size

      561KB

    • MD5

      e5d5bfe30179b640a80ae3cc1640e486

    • SHA1

      5c5a868d8b688884b8a47deb61a3ee9ca08fbdd4

    • SHA256

      4252980510d6ea59efb52bb30a67f8173b7f905e1ea368113ab6e60f2a99105b

    • SHA512

      cae7eac6bf7106bb663c042f1ea77393a62b6ec9555667e07736997fc69f219fa83b30fcaf1c93a4a1a300879ec0fe33aa8cdc22d303f795f36dc285639f488b

    • SSDEEP

      1536:kmmmmmmmmmmmmmmmmmmyFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFp:vSe

    • 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