Overview

overview

10

Static

static

3

Tax Organi...er.exe

windows7-x64

1

Tax Organi...er.exe

windows10-2004-x64

3

Tax Organi...2m.dll

windows7-x64

10

Tax Organi...2m.dll

windows10-2004-x64

10

Sharing

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General

  • Target
    19042024_0340_2023 Tax Organizer.zip
  • Size 10.6MB
  • Sample240419-d8xp1sff94
  • SHA256 bd8ff468b6fb4958059537257894153fc0cb9eb43f4a05c0b7c42ddd0fac7df9
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
remcosremotehostpersistencerat

Malware Config

Extracted

Family

  • remcos

Botnet

  • RemoteHost

C2

  • faststaynow.duckdns.org:5057

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    remcos.exe

  • copy_folder

    Remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    false

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-DRFJJD

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target
      Tax Organizer 2023/Tax Organizer.exe
    • Size 31KB
    • SHA256 a73709c1b5f1f875ee35f477c4e263a57050c36e2cff31ad1ceca17d9623e7cd
    • MD5 SHA1 SHA512 SSDEEP
    Score
    3/10
    behavioral1behavioral2
    • Target
      Tax Organizer 2023/g2m.dll
    • Size 25.9MB
    • SHA256 2643dbabde4595b6505a2c5f74810022a75322cb1c0a7a889783ad794f55df7d
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    remcosremotehostpersistencerat

    • Remcos

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

      ratremcos

    • Blocklisted process makes network request

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Adds Run key to start application

      persistence

    • Suspicious use of NtCreateThreadExHideFromDebugger

    behavioral3behavioral4

MITRE ATT&CK Enterprise v15

Tasks