Overview

overview

10

Static

static

10

remcos_a.exe

windows7-x64

10

remcos_a.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    remcos_a.exe

  • Size

    469KB

  • Sample

    250101-wfpg2swkfx

  • MD5

    cb260ee02beb698168650f3989fe6b67

  • SHA1

    47cabd39e814a05338f46ae50a7d7aab5701621a

  • SHA256

    50180bf5f8601e15edad613d41c755d3a688d10b82372b8d9fcb128e95d02dff

  • SHA512

    338d7a324bfe508a35024bb714d7807f875024826e1ef9699c37a4842b35890c68bd83a46609be97ad186073ec140414dc46294e2536a194e88510848b71c267

  • SSDEEP

    12288:Wmnk7iLJbpIpiRL6I2WhSKQ9ZsfZQS7n9:uiLJbpI7I2WhQqZ779

Score
10/10
remcosremotehostdiscoverypersistencerat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

170.205.31.90:3333

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

    true

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-E4B1RH

  • 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

      remcos_a.exe

    • Size

      469KB

    • MD5

      cb260ee02beb698168650f3989fe6b67

    • SHA1

      47cabd39e814a05338f46ae50a7d7aab5701621a

    • SHA256

      50180bf5f8601e15edad613d41c755d3a688d10b82372b8d9fcb128e95d02dff

    • SHA512

      338d7a324bfe508a35024bb714d7807f875024826e1ef9699c37a4842b35890c68bd83a46609be97ad186073ec140414dc46294e2536a194e88510848b71c267

    • SSDEEP

      12288:Wmnk7iLJbpIpiRL6I2WhSKQ9ZsfZQS7n9:uiLJbpI7I2WhQqZ779

    Score
    10/10
    remcosremotehostdiscoverypersistencerat

    • Remcos

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

      ratremcos

    • Remcos family

      remcos

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence
    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks