General

  • Target

    sostener.vbs

  • Size

    438KB

  • Sample

    240926-ktwbzaxhmk

  • MD5

    e260955361dc0c8454fcfa061a45f6f1

  • SHA1

    bb77b8e3ef1c8d30cb5dbb90725d34e3c7602e13

  • SHA256

    e9cc243923de94787673438f26c30baefe9995b38c8b8047b95726b998baf26c

  • SHA512

    2f6572ecf6169a33c4cd273c0a9d8fd158e4e9230bb3c0489f3ca8bd0884c784d2372dcc09a6438f178ec2e8a27ccd37b1de3771b6a6cc6485d8d220bc3fa202

  • SSDEEP

    96:WDT/c7lY88ky0xbFi1msq4VIAGYAjrGzrD5UbF:W3/OlY88kyIhi1msLVIAGYAUvGF

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

https://www.informacionoportuna.com/wp-content/uploads/2024/09/dllskyfal.txt

Extracted

Family

remcos

Botnet

Nlk

C2

comandoespecial2023.duckdns.org:8888

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-3PWW8O

  • 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

      sostener.vbs

    • Size

      438KB

    • MD5

      e260955361dc0c8454fcfa061a45f6f1

    • SHA1

      bb77b8e3ef1c8d30cb5dbb90725d34e3c7602e13

    • SHA256

      e9cc243923de94787673438f26c30baefe9995b38c8b8047b95726b998baf26c

    • SHA512

      2f6572ecf6169a33c4cd273c0a9d8fd158e4e9230bb3c0489f3ca8bd0884c784d2372dcc09a6438f178ec2e8a27ccd37b1de3771b6a6cc6485d8d220bc3fa202

    • SSDEEP

      96:WDT/c7lY88ky0xbFi1msq4VIAGYAjrGzrD5UbF:W3/OlY88kyIhi1msLVIAGYAUvGF

    • 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.

    • Adds Run key to start application

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks