Overview

overview

10

Static

static

RA1_20210729.exe

windows7_x64

10

RA1_20210729.exe

windows10_x64

10

Sharing

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General

  • Target
    RA1_20210729.exe
  • Size 1.5MB
  • Sample210729-dxt3wh32js
  • SHA256 00d52b668be725580bf1233a8bc805f62831f96ca8f7cf50807cd3481727981a
  • MD5 SHA1 SHA512
Score
10/10
remcossapersistenceratspywarestealer

Malware Config

Extracted

Family

  • remcos

Version

  • 3.1.5 Pro

Botnet

  • SA

C2

  • ego.ddns.net:2404

  • chasesure.duckdns.org:2404

Attributes
  • audio_folder

    MicRecords

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    rem.exe

  • copy_folder

    Remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    true

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    Remcos-6KPFIK

  • 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

  • take_screenshot_title

    wikipedia;solitaire;

Targets

    • Target
      RA1_20210729.exe
    • Size 1.5MB
    • SHA256 00d52b668be725580bf1233a8bc805f62831f96ca8f7cf50807cd3481727981a
    • MD5 SHA1 SHA512
    Score
    10/10
    remcossapersistenceratspywarestealer

    • Remcos

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

      ratremcos

    • CustAttr .NET packer

      Detects CustAttr .NET packer in memory.

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer

    • Adds Run key to start application

      persistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v6

Tasks