Overview

overview

10

Static

static

1

Product Sp...ls.xls

windows7-x64

10

Product Sp...ls.xls

windows10-2004-x64

1

Sharing

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General

  • Target
    Product Specification Details.xls
  • Size 280KB
  • Sample240606-sa1rcaff6v
  • SHA256 a695b1a2556cbe65c1bd69fefa312994e86f4e843a529f5a063d29ece5fddfbd
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
remcosonyekacollectionexecutionratspywarestealer

Malware Config

Extracted

Family

  • remcos

Botnet

  • Onyeka

C2

  • thacoseafoods.com:14645

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-N64F69

  • 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
      Product Specification Details.xls
    • Size 280KB
    • SHA256 a695b1a2556cbe65c1bd69fefa312994e86f4e843a529f5a063d29ece5fddfbd
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    remcosonyekacollectionexecutionratspywarestealer

    • Remcos

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

      ratremcos

    • NirSoft MailPassView

      Password recovery tool for various email clients

    • NirSoft WebBrowserPassView

      Password recovery tool for various web browsers

    • Nirsoft

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

      execution

    • Abuses OpenXML format to download file from external location

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer

    • Accesses Microsoft Outlook accounts

      collection

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks