Overview

overview

10

Static

static

1

URLScan

urlscan

1

https://www.4sync.co...

windows10-2004-x64

10

Sharing

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General

  • Target

    https://www.4sync.com/web/directDownload/46fxtJj3/Qp7wijin.39f4be40b8f7f592bfee67f41941cb40

  • Sample

    241223-nxbzaazjan

Score
10/10
remcosrmc_fivediscoveryexecutionpersistencerat

Malware Config

Extracted

Family

remcos

Botnet

rmc_five

C2

101.99.94.64:2404

101.99.94.64:80

101.99.94.64:8080

101.99.94.64:465

101.99.94.64:50000
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

    rmc

  • mouse_option

    false

  • mutex

    FiveHHBvdh-4V205L

  • 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

      https://www.4sync.com/web/directDownload/46fxtJj3/Qp7wijin.39f4be40b8f7f592bfee67f41941cb40

    Score
    10/10
    remcosrmc_fivediscoveryexecutionpersistencerat

    • Remcos

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

      ratremcos

    • Remcos family

      remcos

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

      execution

    • Checks computer location settings

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

    • Executes dropped EXE

    • Adds Run key to start application

      persistence

    • Legitimate hosting services abused for malware hosting/C2

    • Suspicious use of SetThreadContext

    behavioral1

MITRE ATT&CK Enterprise v15

Tasks