Overview

overview

10

Static

static

10

2026-11-10...ar.exe

windows10-2004-x64

10

2026-11-10...ar.exe

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    2026-11-10_ef2e87a2b40d768683aeec923086dec2_cobalt-strike_coinminer_icedid_njrat_remcos_vidar
  • Size 645KB
  • Sample261111-teaw6aat61
  • SHA256 6dbac1f31cd87e2961bda58673d732fa2a65508a9f1320d9dfae622f5bae2d73
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
remcosremotehostdefense_evasiondiscoverypersistencerat

Malware Config

Extracted

Family

  • remcos

Version

  • 7.3.1 Pro

Botnet

  • RemoteHost

C2

  • 77.81.139.2:5861

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

    true

  • hide_file

    true

  • 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-BOE17Y

  • 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
      2026-11-10_ef2e87a2b40d768683aeec923086dec2_cobalt-strike_coinminer_icedid_njrat_remcos_vidar
    • Size 645KB
    • SHA256 6dbac1f31cd87e2961bda58673d732fa2a65508a9f1320d9dfae622f5bae2d73
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    remotehostdefense_evasiondiscoveryremcospersistencerat

    • Family: Remcos

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

      ratremcos
    • 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.

    • Deletes itself

      defense_evasion

    • Executes dropped EXE

    • Adds Run key to start application

      persistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks