Overview

overview

10

Static

static

3

828f90ee9a...92.exe

windows7-x64

10

828f90ee9a...92.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    828f90ee9ac1319f3a13fdb52ea902cad7efa5c202e70257826056ae3ea15e92

  • Size

    372KB

  • Sample

    250328-yzhjys1sbt

  • MD5

    04cae2b318dbfbb8a5fc80070bed1533

  • SHA1

    d76a47b195c3c138c9b3eff088992252f584b475

  • SHA256

    828f90ee9ac1319f3a13fdb52ea902cad7efa5c202e70257826056ae3ea15e92

  • SHA512

    a1d971896e473b711cd05b1c97cb60b1eacce38ce0a66e18b5d8902fe8e89b1000e6dece9363a0478e808e146fc36699b5ae2b8bd266723f0590711d1fd12095

  • SSDEEP

    6144:tKdgUkQx+HXGidCzj8LBb8Rw5Jdypyf6aCXYfhi2e:tgqQx+H2i+8LBNbdypazCXYI

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

      828f90ee9ac1319f3a13fdb52ea902cad7efa5c202e70257826056ae3ea15e92

    • Size

      372KB

    • MD5

      04cae2b318dbfbb8a5fc80070bed1533

    • SHA1

      d76a47b195c3c138c9b3eff088992252f584b475

    • SHA256

      828f90ee9ac1319f3a13fdb52ea902cad7efa5c202e70257826056ae3ea15e92

    • SHA512

      a1d971896e473b711cd05b1c97cb60b1eacce38ce0a66e18b5d8902fe8e89b1000e6dece9363a0478e808e146fc36699b5ae2b8bd266723f0590711d1fd12095

    • SSDEEP

      6144:tKdgUkQx+HXGidCzj8LBb8Rw5Jdypyf6aCXYfhi2e:tgqQx+H2i+8LBNbdypazCXYI

    Score
    10/10
    remcostinodiscoverypersistencerat

    • 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