Overview

overview

10

Static

static

3

3b42b77b0b...8a.exe

windows7-x64

7

3b42b77b0b...8a.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    3b42b77b0bca33235ea576f37dc3cabd7a2b2bd501089380ffa15098293eab8a

  • Size

    372KB

  • Sample

    250330-y2pq2swtds

  • MD5

    0e51ba9445f6978daad3465cd383b3c7

  • SHA1

    da42572d8384c67e0bd67ec37430b9ca77040e93

  • SHA256

    3b42b77b0bca33235ea576f37dc3cabd7a2b2bd501089380ffa15098293eab8a

  • SHA512

    38d5cd0bed279a49a60a1deb282f181d3ac8f67afb4af15358b6648c8a47cde3430b7bdd3be500703a2054be60ab2ad0bb2a1771bd36d59eccec81f14d179db5

  • SSDEEP

    6144:tZdgUkQx+HXGidCzj8LBb8Rw5Jdypyf6aCXYfhiiO:t7qQx+H2i+8LBNbdypazCXY0

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

      3b42b77b0bca33235ea576f37dc3cabd7a2b2bd501089380ffa15098293eab8a

    • Size

      372KB

    • MD5

      0e51ba9445f6978daad3465cd383b3c7

    • SHA1

      da42572d8384c67e0bd67ec37430b9ca77040e93

    • SHA256

      3b42b77b0bca33235ea576f37dc3cabd7a2b2bd501089380ffa15098293eab8a

    • SHA512

      38d5cd0bed279a49a60a1deb282f181d3ac8f67afb4af15358b6648c8a47cde3430b7bdd3be500703a2054be60ab2ad0bb2a1771bd36d59eccec81f14d179db5

    • SSDEEP

      6144:tZdgUkQx+HXGidCzj8LBb8Rw5Jdypyf6aCXYfhiiO:t7qQx+H2i+8LBNbdypazCXY0

    Score
    10/10
    discoveryremcostinopersistencerat

    • Modifies WinLogon for persistence

      persistence

    • 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

    • Modifies WinLogon

      persistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks