Overview

overview

10

Static

static

7

cls @.../o.exe

windows10-2004-x64

10

cls @.../o.exe

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    PO-30532-CHAUHANI-070.zip
  • Size 1.2MB
  • Sample260720-gzjctabs8y
  • SHA256 69021e3b3f619bfc9e5f082d021fe1eb625e7021b6b409097b79d5581d093558
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
remcosremotehostdiscoveryexecutionpersistencerat

Malware Config

Extracted

Family

  • remcos

Version

  • 3.8.0 Pro

Botnet

  • RemoteHost

C2

  • orchmore.ddns.net:443

  • orchmore1.ddns.net:443

Attributes
  • audio_folder

    MicRecords

  • 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

    true

  • install_flag

    false

  • keylog_crypt

    true

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    Microlive

  • mouse_option

    false

  • mutex

    Microlive-JFH77T

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    Remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target
      cls @echo off set t=%temp%/o.exe extrac32 %0 %t% %t% del %t% exit
    • Size 1.3MB
    • SHA256 c07006880b15db9fa1cf09cac4bf3b88c353b9791ea81ca963faba35d2df97a4
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    remotehostdiscoveryexecutionremcospersistencerat

    • Family: Remcos

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

      ratremcos

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

      execution

    • .NET Reactor proctector

      Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

    • Checks computer location settings

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

    • Executes dropped EXE

    • SmartAssembly .NET packer

      Detects SmartAssembly .NET packer.

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks