Overview

overview

10

Static

static

3

3e1fbdbcaa...1c.exe

windows7-x64

10

3e1fbdbcaa...1c.exe

windows10-2004-x64

10

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General

  • Target

    3e1fbdbcaa92893676313e4538ded544027183c8272251fa40e65d15f17dfc1c.exe

  • Size

    372KB

  • Sample

    250215-z73qjavpfy

  • MD5

    bbf31479e45eb35017cfd001a5d0c8b5

  • SHA1

    4de21d92e6888bf75db73af46b1e8f0bf9b12041

  • SHA256

    3e1fbdbcaa92893676313e4538ded544027183c8272251fa40e65d15f17dfc1c

  • SHA512

    0a43539429302f1e1179431a14591e6a11367d739ab1a3d4c2793eb6424bfc519c60fa7d2bd4bab4a515b754d32eb7a32f3126521c5123e2bddb239cef4fdd54

  • SSDEEP

    6144:t0dgUkQx+HXGidCzj8LBb8Rw5Jdypyf6aCXYfhiGO:t+qQx+H2i+8LBNbdypazCXYo

Score
10/10
remcostinodiscoverypersistencerat

Malware Config

Extracted

Family

remcos

Version

2.4.3 Pro

Botnet

TINo

C2

185.140.53.140:2404

Attributes
  • audio_folder

    audio

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    5

  • copy_file

    remcos.exe

  • copy_folder

    remcos

  • delete_file

    true

  • hide_file

    false

  • hide_keylog_file

    true

  • install_flag

    true

  • install_path

    %AppData%

  • keylog_crypt

    true

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    Remcos-5S9O07

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    1

  • startup_value

    remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      3e1fbdbcaa92893676313e4538ded544027183c8272251fa40e65d15f17dfc1c.exe

    • Size

      372KB

    • MD5

      bbf31479e45eb35017cfd001a5d0c8b5

    • SHA1

      4de21d92e6888bf75db73af46b1e8f0bf9b12041

    • SHA256

      3e1fbdbcaa92893676313e4538ded544027183c8272251fa40e65d15f17dfc1c

    • SHA512

      0a43539429302f1e1179431a14591e6a11367d739ab1a3d4c2793eb6424bfc519c60fa7d2bd4bab4a515b754d32eb7a32f3126521c5123e2bddb239cef4fdd54

    • SSDEEP

      6144:t0dgUkQx+HXGidCzj8LBb8Rw5Jdypyf6aCXYfhiGO:t+qQx+H2i+8LBNbdypazCXYo

    Score
    10/10
    remcostinodiscoverypersistencerat

    • Modifies WinLogon for persistence

      persistence

    • Remcos

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

      ratremcos

    • Remcos family

      remcos

    • Downloads MZ/PE file

    • 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

    • Modifies WinLogon

      persistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks