Resubmissions

05/08/2026, 04:02

260805-el6j3sdb27

05/08/2026, 03:20

260805-dvsh5scg5310

General

  • Target
    334c23c94f9c6587e2afd0689796daa8791fda9b823b23836893b86f5cce849f.exe
  • Size 92KB
  • Sample260805-dvsh5scg53
  • SHA256 334c23c94f9c6587e2afd0689796daa8791fda9b823b23836893b86f5cce849f
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • remcos

Version
  • 1.7 Pro

Botnet
  • 1877

C2
  • hawler.duckdns.org:2404

  • 5.206.227.115:2404

Attributes
  • audio_folder

    audio

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    5

  • copy_file

    svshost.exe

  • copy_folder

    1877

  • delete_file

    false

  • hide_file

    true

  • hide_keylog_file

    false

  • install_flag

    true

  • install_path

    %WinDir%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    1877

  • keylog_path

    %AppData%

  • mouse_option

    true

  • mutex

    1877_spelzoyulk

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screens

  • screenshot_path

    %AppData%

  • screenshot_time

    1

  • startup_value

    Google Update

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target
      334c23c94f9c6587e2afd0689796daa8791fda9b823b23836893b86f5cce849f.exe
    • Size 92KB
    • SHA256 334c23c94f9c6587e2afd0689796daa8791fda9b823b23836893b86f5cce849f
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Family: Remcos

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

    • Modifies WinLogon for persistence

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Adds policy Run key to start application

    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    • Checks computer location settings

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

    • Executes dropped EXE

    • Adds Run key to start application

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Modifies WinLogon

MITRE ATT&CK Enterprise v16

Tasks