Overview

overview

10

Static

static

3

82731e1c52...98.exe

windows7-x64

10

82731e1c52...98.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    82731e1c5228adc5b1880df339da2e95f7c9287f7f4f396218dc3863d2042d98

  • Size

    372KB

  • Sample

    250217-cw5dnaxjal

  • MD5

    e0095cb04c541581431c07adeb6db8ee

  • SHA1

    dc91e896abbce7871b66897b66f9b760793702ca

  • SHA256

    82731e1c5228adc5b1880df339da2e95f7c9287f7f4f396218dc3863d2042d98

  • SHA512

    ff640005f33097a20703ae9b800202aa9a6a85f3d103199b8acb052e3bbca097fb39c0b19b37916c89b7e885294a541b845710369be1f9fd6d916cff30d67b39

  • SSDEEP

    6144:tRdgUkQx+HXGidCzj8LBb8Rw5Jdypyf6aCXYfhia+:tjqQx+H2i+8LBNbdypazCXYU

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

      82731e1c5228adc5b1880df339da2e95f7c9287f7f4f396218dc3863d2042d98

    • Size

      372KB

    • MD5

      e0095cb04c541581431c07adeb6db8ee

    • SHA1

      dc91e896abbce7871b66897b66f9b760793702ca

    • SHA256

      82731e1c5228adc5b1880df339da2e95f7c9287f7f4f396218dc3863d2042d98

    • SHA512

      ff640005f33097a20703ae9b800202aa9a6a85f3d103199b8acb052e3bbca097fb39c0b19b37916c89b7e885294a541b845710369be1f9fd6d916cff30d67b39

    • SSDEEP

      6144:tRdgUkQx+HXGidCzj8LBb8Rw5Jdypyf6aCXYfhia+:tjqQx+H2i+8LBNbdypazCXYU

    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