Overview

overview

10

Static

static

3

5073eadffd...29.exe

windows7-x64

10

5073eadffd...29.exe

windows10-2004-x64

10

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General

  • Target

    5073eadffdcbba2f5bd8a67828f812a7272541295de57a5e61d8b75b25122629.exe

  • Size

    1.3MB

  • Sample

    241122-j7y5caxlds

  • MD5

    358ec1b6439850f0bb6ccad7131cf347

  • SHA1

    a8e6f81f044051e6cdc829e99a31be3d6a7d6779

  • SHA256

    5073eadffdcbba2f5bd8a67828f812a7272541295de57a5e61d8b75b25122629

  • SHA512

    5d95aed5645d975f243bda9d1fe624f8b83ee4255974eb6bc2db78cc42e80d97b4056f959fcbe2cfeb59a7db40ecd4a8ca35c8c4e141494546b850eacc72e799

  • SSDEEP

    24576:rAOcZEhGZJLnKjCT+8RrtqrpUu8sR0coTvAiHca6TPY5I7nT1RMwa+NI:tMZU/SrtqrpccOv/HP6c5IzTXM7+NI

Score
10/10
remcosoctober-$$$$discoverypersistencerat

Malware Config

Extracted

Family

remcos

Version

3.3.0 Pro

Botnet

OCTOBER-$$$$

C2

mgc0147.hopto.org:2930

Attributes
  • audio_folder

    MicRecords

  • audio_path

    %AppData%

  • 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

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    Remcos-3MPDYA

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    Remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

  • take_screenshot_title

    notepad;solitaire;

Extracted

Family

remcos

Botnet

OCTOBER-$$$$

C2

mgc0147.hopto.org:2930

Attributes
  • audio_folder

    MicRecords

  • audio_path

    %AppData%

  • 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

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    Remcos-3MPDYA

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    Remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

  • take_screenshot_title

    notepad;solitaire;

Targets

    • Target

      5073eadffdcbba2f5bd8a67828f812a7272541295de57a5e61d8b75b25122629.exe

    • Size

      1.3MB

    • MD5

      358ec1b6439850f0bb6ccad7131cf347

    • SHA1

      a8e6f81f044051e6cdc829e99a31be3d6a7d6779

    • SHA256

      5073eadffdcbba2f5bd8a67828f812a7272541295de57a5e61d8b75b25122629

    • SHA512

      5d95aed5645d975f243bda9d1fe624f8b83ee4255974eb6bc2db78cc42e80d97b4056f959fcbe2cfeb59a7db40ecd4a8ca35c8c4e141494546b850eacc72e799

    • SSDEEP

      24576:rAOcZEhGZJLnKjCT+8RrtqrpUu8sR0coTvAiHca6TPY5I7nT1RMwa+NI:tMZU/SrtqrpccOv/HP6c5IzTXM7+NI

    Score
    10/10
    remcosoctober-$$$$discoverypersistencerat

    • Remcos

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

      ratremcos

    • Remcos family

      remcos

    • 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