General

  • Target

    asegurar.vbs

  • Size

    14.3MB

  • Sample

    241031-he7qca1kcy

  • MD5

    aee210142f6411df0f3c0469d2a9df27

  • SHA1

    991b0e994e4da9f76bf9fd03bc3fef75dfd94590

  • SHA256

    3a07acb9e24dace059cea1a5c9c90f457e3c0d3e823805ae2fd0241d75917fc2

  • SHA512

    5199ec7836d07bfe4c48deb3d16993f45ffc9864c404330462f9698960f7a5272bc5a7fff56f4a0d9afa9df2c01271cd0b303004f874797e20ec997c3f55fae3

  • SSDEEP

    1536:lyyyyyyyyyyyyyyyyyyyyyyyryyyyyyyyyyyyyyyyyyyyyyycyyyyyyyyyyyyyyz:TZ5U

Malware Config

Extracted

Language
ps1
Source
URLs
exe.dropper

https://pastebin.com/raw/J6uRjZrv

Extracted

Family

remcos

Botnet

NewssTar

C2

sost.duckdns.org:2001

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

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-T0UVJ0

  • 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

      asegurar.vbs

    • Size

      14.3MB

    • MD5

      aee210142f6411df0f3c0469d2a9df27

    • SHA1

      991b0e994e4da9f76bf9fd03bc3fef75dfd94590

    • SHA256

      3a07acb9e24dace059cea1a5c9c90f457e3c0d3e823805ae2fd0241d75917fc2

    • SHA512

      5199ec7836d07bfe4c48deb3d16993f45ffc9864c404330462f9698960f7a5272bc5a7fff56f4a0d9afa9df2c01271cd0b303004f874797e20ec997c3f55fae3

    • SSDEEP

      1536:lyyyyyyyyyyyyyyyyyyyyyyyryyyyyyyyyyyyyyyyyyyyyyycyyyyyyyyyyyyyyz:TZ5U

    • Remcos

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

    • Remcos family

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Checks computer location settings

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

    • Legitimate hosting services abused for malware hosting/C2

    • Obfuscated Files or Information: Command Obfuscation

      Adversaries may obfuscate content during command execution to impede detection.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks