Overview

overview

10

Static

static

3

1e3540baab...91.exe

windows7-x64

10

1e3540baab...91.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    1e3540baabf42245189b60b29a9bc799c35f6c4f6205f06c5efe449166cc0791

  • Size

    139KB

  • Sample

    241019-xre87avdkn

  • MD5

    c18ed22232aa0d8b06ddd20fabcea7af

  • SHA1

    a4be87e0c083353de36a6c1bd531dbb8a2087f66

  • SHA256

    1e3540baabf42245189b60b29a9bc799c35f6c4f6205f06c5efe449166cc0791

  • SHA512

    1582a6a57cc8ed4248e4936e0abc9c5bef0a0275c865b20a0f30e84d97faa1088e4ce365bb4361db75fdda6b0d292be1f35c7daa2e8abba5dddd7599aed69f86

  • SSDEEP

    3072:xPd4n/M+WLcilrpgGH/GwY87mVmIXhIHVSV:xP6/M+WLckOBhVmIYY

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

      1e3540baabf42245189b60b29a9bc799c35f6c4f6205f06c5efe449166cc0791

    • Size

      139KB

    • MD5

      c18ed22232aa0d8b06ddd20fabcea7af

    • SHA1

      a4be87e0c083353de36a6c1bd531dbb8a2087f66

    • SHA256

      1e3540baabf42245189b60b29a9bc799c35f6c4f6205f06c5efe449166cc0791

    • SHA512

      1582a6a57cc8ed4248e4936e0abc9c5bef0a0275c865b20a0f30e84d97faa1088e4ce365bb4361db75fdda6b0d292be1f35c7daa2e8abba5dddd7599aed69f86

    • SSDEEP

      3072:xPd4n/M+WLcilrpgGH/GwY87mVmIXhIHVSV:xP6/M+WLckOBhVmIYY

    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