Overview

overview

10

Static

static

10

2026-11-13...ar.exe

windows10-2004-x64

10

2026-11-13...ar.exe

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    2026-11-13_2855db450d7fd382c0f0a0ad1f965cb9_cobalt-strike_coinminer_icedid_njrat_remcos_vidar
  • Size 644KB
  • Sample261114-vt25mafv7k
  • SHA256 a578577c8f19612226b14e862212fa83f7d07288a14b5eb52af183fe81ed20da
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
remcosau88discoverypersistenceratsuricata

Malware Config

Extracted

Family

  • remcos

Version

  • 7.3.1 Pro

Botnet

  • au88

C2

  • ad88.tech:443

  • www.ad88.tech:443

  • www.ad88.tech:80

  • api.ad88.tech:80

  • c2.ad88.tech:8080

  • ad88.tech:8080

  • www.ad88.tech:8080

Attributes
  • audio_folder

    au88

  • audio_path

    ApplicationPath

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    App.exe

  • copy_folder

    au88

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    true

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-ULRXQE

  • screenshot_crypt

    false

  • screenshot_flag

    true

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target
      2026-11-13_2855db450d7fd382c0f0a0ad1f965cb9_cobalt-strike_coinminer_icedid_njrat_remcos_vidar
    • Size 644KB
    • SHA256 a578577c8f19612226b14e862212fa83f7d07288a14b5eb52af183fe81ed20da
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    au88discoveryremcospersistenceratsuricata

    • Family: Remcos

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

      ratremcos

    • Suricata alert: REMCOS RAT Malware Outbound C2 Communication

      Network activity triggered a Suricata alert

      suricataremcos
    • Custom signature

      Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)

    • Custom signature

      Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers

    • Checks computer location settings

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

    • Executes dropped EXE

    • Adds Run key to start application

      persistence
    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks