Overview

overview

10

Static

static

3

tmprv9oph73.exe

windows10-ltsc_2021-x64

10

tmprv9oph73.exe

windows10-2004-x64

10

tmprv9oph73.exe

windows11-21h2-x64

10

Sharing

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General

  • Target
    tmprv9oph73
  • Size 137KB
  • Sample260601-19ft8ags71
  • SHA256 4a9455b9f7f0266a0630aec9285a3eb91a3b929e1d22f0d6a574edf7f18cf2fb
  • MD5 SHA1 SHA512 SSDEEP TLSH
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
      tmprv9oph73
    • Size 137KB
    • SHA256 4a9455b9f7f0266a0630aec9285a3eb91a3b929e1d22f0d6a574edf7f18cf2fb
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    hostdiscoveryremcospersistencerat

    • Family: 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

    • Adds Run key to start application

      persistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2behavioral3

MITRE ATT&CK Enterprise v16

Tasks