Overview

overview

10

Static

static

3

0569fc7919...49.exe

windows10-2004-x64

10

0569fc7919...49.exe

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    0569fc7919ae797699305cd0e9a0af8e40810d6475073ffe11aadf4c8ad54149.bin
  • Size 729KB
  • Sample260729-nd2qlavtcx
  • SHA256 0569fc7919ae797699305cd0e9a0af8e40810d6475073ffe11aadf4c8ad54149
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
remcosxwormserverdiscoveryexecutionpersistencerattrojan

Malware Config

Extracted

Family

  • xworm

Version

  • 5.0

C2

  • 204.10.160.238:443

Mutex

  • EmPpVsap8cTH4G8n

Attributes
  • install_file

    USB.exe

aes.plain

Extracted

Family

  • remcos

Version

  • 3.8.0 Pro

Botnet

  • Server

C2

  • 204.10.160.238:44380

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

    false

  • install_flag

    false

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-VN1NLD

  • 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
      0569fc7919ae797699305cd0e9a0af8e40810d6475073ffe11aadf4c8ad54149.bin
    • Size 729KB
    • SHA256 0569fc7919ae797699305cd0e9a0af8e40810d6475073ffe11aadf4c8ad54149
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    serverdiscoveryexecutionremcosxwormpersistencerattrojan

    • Detect Xworm Payload

    • Family: Remcos

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

      ratremcos

    • Family: Xworm

      Xworm is a remote access trojan written in C#.

      trojanratxworm

    • Command and Scripting Interpreter: PowerShell

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

      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

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks