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Overview

overview

10

Static

static

3

73fd45821f...3N.exe

windows7-x64

7

73fd45821f...3N.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    73fd45821fd876a3ed29440f33a1010dfafac77a784e188a6ae5f4eb6b93f5e3N

  • Size

    139KB

  • Sample

    240917-hmsldszcmh

  • MD5

    64e3b91e8bead6f24e9b82ddc03e5fd0

  • SHA1

    4ebde9a4ff2e48a118d5e3e75b8901422ea85567

  • SHA256

    73fd45821fd876a3ed29440f33a1010dfafac77a784e188a6ae5f4eb6b93f5e3

  • SHA512

    0888718dc2c303d2f91a92231759895a823e2427ca902bbd47738ce303f55a6c60f7b00181ca0c690e74cd4f022dff1e6534b6bcfba249d2d4ec68a4ebe79864

  • SSDEEP

    1536:ITHiPBX4nDzMyRXGHrc9YRHqbTypgpmb5Q+ZReSdhk/J+YLgD3mrxb53cSuYQjK8:xPd4n/M+WLcilrpgGH/GwY87mVmIXLg

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

      73fd45821fd876a3ed29440f33a1010dfafac77a784e188a6ae5f4eb6b93f5e3N

    • Size

      139KB

    • MD5

      64e3b91e8bead6f24e9b82ddc03e5fd0

    • SHA1

      4ebde9a4ff2e48a118d5e3e75b8901422ea85567

    • SHA256

      73fd45821fd876a3ed29440f33a1010dfafac77a784e188a6ae5f4eb6b93f5e3

    • SHA512

      0888718dc2c303d2f91a92231759895a823e2427ca902bbd47738ce303f55a6c60f7b00181ca0c690e74cd4f022dff1e6534b6bcfba249d2d4ec68a4ebe79864

    • SSDEEP

      1536:ITHiPBX4nDzMyRXGHrc9YRHqbTypgpmb5Q+ZReSdhk/J+YLgD3mrxb53cSuYQjK8:xPd4n/M+WLcilrpgGH/GwY87mVmIXLg

    Score
    10/10
    discoverypersistenceremcoshostrat

    • 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