Overview

overview

10

Static

static

3

b5e515f8a8...0N.exe

windows7-x64

10

b5e515f8a8...0N.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    b5e515f8a8f3839d70776c90f398c490N.exe

  • Size

    139KB

  • Sample

    240824-fl86msthkg

  • MD5

    b5e515f8a8f3839d70776c90f398c490

  • SHA1

    21a6d57c7b72e5c1a60e368dd4a723db65c12e07

  • SHA256

    34102f0b2b79b27b821c7d06a88843fd0faf3fb39191bb685015d1ab909f1d4b

  • SHA512

    6776a38a1fb19a3351e1a50f7efbfa0f1f7bd84ada9e93febaef5a03c41bce94bb4801cb720d4a1d5b4f821f2f2f17c133a9c24c0aaf6ff522460ed03890c81b

  • SSDEEP

    3072:xPd4n/M+WLcilrpgGH/GwY87mVmIXhIH4:xP6/M+WLckOBhVmIZ

Score
10/10
remcoshostdiscoverypersistencerat

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

Host

C2

systemcontrol.ddns.net:45000

systemcontrol2.ddns.net:45000
Attributes
  • audio_folder

    audio

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    5

  • copy_file

    OfficeUpgrade.exe

  • copy_folder

    OfficeUpgrade

  • delete_file

    false

  • hide_file

    true

  • hide_keylog_file

    true

  • install_flag

    false

  • install_path

    %AppData%

  • keylog_crypt

    true

  • keylog_file

    Upgrader.dat

  • keylog_flag

    false

  • keylog_folder

    Upgrader

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    req_khauflaoyr

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screens

  • screenshot_path

    %AppData%

  • screenshot_time

    1

  • startup_value

    OfficeUpgrade

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      b5e515f8a8f3839d70776c90f398c490N.exe

    • Size

      139KB

    • MD5

      b5e515f8a8f3839d70776c90f398c490

    • SHA1

      21a6d57c7b72e5c1a60e368dd4a723db65c12e07

    • SHA256

      34102f0b2b79b27b821c7d06a88843fd0faf3fb39191bb685015d1ab909f1d4b

    • SHA512

      6776a38a1fb19a3351e1a50f7efbfa0f1f7bd84ada9e93febaef5a03c41bce94bb4801cb720d4a1d5b4f821f2f2f17c133a9c24c0aaf6ff522460ed03890c81b

    • SSDEEP

      3072:xPd4n/M+WLcilrpgGH/GwY87mVmIXhIH4:xP6/M+WLckOBhVmIZ

    Score
    10/10
    remcoshostdiscoverypersistencerat

    • Remcos

      Remcos is a closed-source remote control and surveillance software.

      ratremcos

    • 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

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks