Overview

overview

10

Static

static

INVOICE.xlsx

windows7-x64

10

INVOICE.xlsx

windows10-2004-x64

1

Sharing

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General

  • Target

    INVOICE.xlsx

  • Size

    635KB

  • Sample

    221123-myyzrsfd45

  • MD5

    50d4c5006d1abef317feb283d0baf2ac

  • SHA1

    0afc1dc445d3896f75e29b62a4fdba8e06a5fe3c

  • SHA256

    f7f7eef1335e813a234c7bfa0122c9865ef55f8655082fa9cf4e295fb4b58981

  • SHA512

    5c1247d7d981a583c72e1817693871b8520237976baebe661d39fd689fbb9aa7ad0250059eda9d8f99ed2214704c6a731dfe45a4c0b13f51d55f85307d0cd52b

  • SSDEEP

    12288:EjcUe04sRll50nRkC+MOh6iM8rNcillJ20BEyKsJ2vqlNVpsKqwlDDOBYM09cH:EAUvZCRkBMj827Y22VxqwllQH

Score
10/10
remcoseric-hostpersistencerat

Malware Config

Extracted

Family

remcos

Botnet

Eric-Host

C2

craigjonson91211.freedynamicdns.net:2011

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    wee.exe

  • delete_file

    false

  • hide_file

    true

  • hide_keylog_file

    true

  • install_flag

    true

  • install_path

    %AppData%

  • keylog_crypt

    true

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    Rmc-TJGIFV

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    qos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      INVOICE.xlsx

    • Size

      635KB

    • MD5

      50d4c5006d1abef317feb283d0baf2ac

    • SHA1

      0afc1dc445d3896f75e29b62a4fdba8e06a5fe3c

    • SHA256

      f7f7eef1335e813a234c7bfa0122c9865ef55f8655082fa9cf4e295fb4b58981

    • SHA512

      5c1247d7d981a583c72e1817693871b8520237976baebe661d39fd689fbb9aa7ad0250059eda9d8f99ed2214704c6a731dfe45a4c0b13f51d55f85307d0cd52b

    • SSDEEP

      12288:EjcUe04sRll50nRkC+MOh6iM8rNcillJ20BEyKsJ2vqlNVpsKqwlDDOBYM09cH:EAUvZCRkBMj827Y22VxqwllQH

    Score
    10/10
    remcoseric-hostpersistencerat

    • Remcos

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

      ratremcos

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v6

Tasks