Overview

overview

10

Static

static

1

scanned Dr...la.xls

windows7-x64

10

scanned Dr...la.xls

windows10-2004-x64

1

Sharing

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General

  • Target

    scanned Draft Copy.xla.xlsx

  • Size

    49KB

  • Sample

    240319-keq4pseh48

  • MD5

    903d5012df813abb990f663da1af4c8a

  • SHA1

    18115c32fca740c959e005493511bf3b6842becb

  • SHA256

    1a49ecab4926721e64c3ef58e9d567bef2d0af4bb8494ee2ef5fd56e713af5cd

  • SHA512

    103e9ccda54df1317ba8d14fa5189a54ca303ceff1707826e4b73bd614556a2c2053e486833be4ea09b54398f1f604be00118a39b2cf07d6538ff7c80e7b28e4

  • SSDEEP

    1536:iX68xwcRZrCO+68f4Rdc4AdoOVOrAjtev:iX68ecfrCO+6pRdc4Ado7Am

Score
10/10
remcosremotehostcollectionpersistenceratspywarestealer

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

buike0147.duckdns.org: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-1C7Y8W

  • 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

      scanned Draft Copy.xla.xlsx

    • Size

      49KB

    • MD5

      903d5012df813abb990f663da1af4c8a

    • SHA1

      18115c32fca740c959e005493511bf3b6842becb

    • SHA256

      1a49ecab4926721e64c3ef58e9d567bef2d0af4bb8494ee2ef5fd56e713af5cd

    • SHA512

      103e9ccda54df1317ba8d14fa5189a54ca303ceff1707826e4b73bd614556a2c2053e486833be4ea09b54398f1f604be00118a39b2cf07d6538ff7c80e7b28e4

    • SSDEEP

      1536:iX68xwcRZrCO+68f4Rdc4AdoOVOrAjtev:iX68ecfrCO+6pRdc4Ado7Am

    Score
    10/10
    remcosremotehostcollectionpersistenceratspywarestealer

    • 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

    • 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

    • Adds Run key to start application

      persistence

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks