Overview

overview

10

Static

static

3

bd0dd5fb7f...8d.exe

windows7-x64

10

bd0dd5fb7f...8d.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    bd0dd5fb7fdda61107b270cb2945dbf5288f20b96149f7bebc7c6fcf5209288d.exe

  • Size

    372KB

  • Sample

    250216-3plk3sspfn

  • MD5

    fa13d3f24e07a16bec5ce2ad70b6e135

  • SHA1

    c22287520e899a48b13edc05a2e4587929817763

  • SHA256

    bd0dd5fb7fdda61107b270cb2945dbf5288f20b96149f7bebc7c6fcf5209288d

  • SHA512

    3f0550a77d4676b5f1e4eb352eb8ca4ed5327c749df1ce6b28f41f12d41ec7e03fdc1199ae554859e841131b77fd291bc28bcc4ed67f7676e66d2458808689e5

  • SSDEEP

    6144:tmdgUkQx+HXGidCzj8LBb8Rw5Jdypyf6aCXYfhiSq:tsqQx+H2i+8LBNbdypazCXYs

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

      bd0dd5fb7fdda61107b270cb2945dbf5288f20b96149f7bebc7c6fcf5209288d.exe

    • Size

      372KB

    • MD5

      fa13d3f24e07a16bec5ce2ad70b6e135

    • SHA1

      c22287520e899a48b13edc05a2e4587929817763

    • SHA256

      bd0dd5fb7fdda61107b270cb2945dbf5288f20b96149f7bebc7c6fcf5209288d

    • SHA512

      3f0550a77d4676b5f1e4eb352eb8ca4ed5327c749df1ce6b28f41f12d41ec7e03fdc1199ae554859e841131b77fd291bc28bcc4ed67f7676e66d2458808689e5

    • SSDEEP

      6144:tmdgUkQx+HXGidCzj8LBb8Rw5Jdypyf6aCXYfhiSq:tsqQx+H2i+8LBNbdypazCXYs

    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