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Overview

overview

10

Static

static

1

1561073.xls

windows7-x64

10

1561073.xls

windows10-2004-x64

1

Sharing

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General

  • Target

    1561073.xls

  • Size

    280KB

  • Sample

    240606-safq6sgf66

  • MD5

    f9e7fc5d4ec23e40355b3dc5cc56bfc8

  • SHA1

    bea7dd0814fc2698f0a223257f54b5e85e013337

  • SHA256

    e10773ee1226f0dc4b6b9d8a1e41bbf1375d9df12333b316a9dcff3f26107497

  • SHA512

    2b073e1ea57893c56553b13c1ebc86efc76735f298260e1b6ef4cd170750abfef1031daa65b5cae2412fab31984dcb559c42c68780773b27bd5dd8d6a9ca2282

  • SSDEEP

    6144:UqFzL5LIT47Hi8kEBF5OkUwueWdEMIW4LCCNU:UqFzu4Li8kEBjbXWQW7U

Score
10/10
remcosremotehostexecutionrat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

107.172.31.6:1070

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-5YSTYW

  • 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

      1561073.xls

    • Size

      280KB

    • MD5

      f9e7fc5d4ec23e40355b3dc5cc56bfc8

    • SHA1

      bea7dd0814fc2698f0a223257f54b5e85e013337

    • SHA256

      e10773ee1226f0dc4b6b9d8a1e41bbf1375d9df12333b316a9dcff3f26107497

    • SHA512

      2b073e1ea57893c56553b13c1ebc86efc76735f298260e1b6ef4cd170750abfef1031daa65b5cae2412fab31984dcb559c42c68780773b27bd5dd8d6a9ca2282

    • SSDEEP

      6144:UqFzL5LIT47Hi8kEBF5OkUwueWdEMIW4LCCNU:UqFzu4Li8kEBjbXWQW7U

    Score
    10/10
    remcosremotehostexecutionrat

    • Remcos

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

      ratremcos

    • 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

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks