Overview

overview

10

Static

static

3

5b2f7db7f9...9N.exe

windows7-x64

10

5b2f7db7f9...9N.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    5b2f7db7f9b1126f9840242568fdbf7957c8400253e9b9809321148304d572e9N.exe

  • Size

    372KB

  • Sample

    250208-dm3dda1rb1

  • MD5

    9db9dde201b0c8390fab040b4fcdcde0

  • SHA1

    63f0a0039d71b9ec37ade5c4c8f3aff75da38d36

  • SHA256

    5b2f7db7f9b1126f9840242568fdbf7957c8400253e9b9809321148304d572e9

  • SHA512

    9d4abfcdc2f72ceb5c87afb8f923f981aec6efa93f62c263b2232daa81b8282633484496f65d94361e76312225a7325bac9df966d07477e85e509fb071d03693

  • SSDEEP

    6144:tpdgUkQx+HXGidCzj8LBb8Rw5Jdypyf6aCXYfhia:tLqQx+H2i+8LBNbdypazCXY

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

      5b2f7db7f9b1126f9840242568fdbf7957c8400253e9b9809321148304d572e9N.exe

    • Size

      372KB

    • MD5

      9db9dde201b0c8390fab040b4fcdcde0

    • SHA1

      63f0a0039d71b9ec37ade5c4c8f3aff75da38d36

    • SHA256

      5b2f7db7f9b1126f9840242568fdbf7957c8400253e9b9809321148304d572e9

    • SHA512

      9d4abfcdc2f72ceb5c87afb8f923f981aec6efa93f62c263b2232daa81b8282633484496f65d94361e76312225a7325bac9df966d07477e85e509fb071d03693

    • SSDEEP

      6144:tpdgUkQx+HXGidCzj8LBb8Rw5Jdypyf6aCXYfhia:tLqQx+H2i+8LBNbdypazCXY

    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