Overview

overview

10

Static

static

1

b5b2948d40...c4.rtf

windows7-x64

10

b5b2948d40...c4.rtf

windows10-2004-x64

1

Sharing

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General

  • Target

    b5b2948d407676eab86b1152e7ce5ec4.rtf

  • Size

    63KB

  • Sample

    240330-kd5kpsce23

  • MD5

    b5b2948d407676eab86b1152e7ce5ec4

  • SHA1

    85de7e562d97c36b9318393fd6185df6b1ba55b9

  • SHA256

    73c5b71d2923b11a8b262321c6229520c93115f82c78d742f041a650725d482f

  • SHA512

    b2048e775bccc0f0cc144fcfaa4e3067fa4ed2613f1e152323673c6497a82815d2ef366d29289214cf5f0007a3c8537af6f40b6ab07a1a936ed4f4612be9725a

  • SSDEEP

    1536:fgoIW1uYod+RuUl9Zh7teyDdvqMhRSiupwk8uXjlh17AY9j:otyuYod+RuAZh84vSiowk8uXjlh17AYR

Score
10/10
remcosremotehostcollectionpersistenceratspywarestealer

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

107.172.31.178:2404

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-NVSJ5U

  • 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

      b5b2948d407676eab86b1152e7ce5ec4.rtf

    • Size

      63KB

    • MD5

      b5b2948d407676eab86b1152e7ce5ec4

    • SHA1

      85de7e562d97c36b9318393fd6185df6b1ba55b9

    • SHA256

      73c5b71d2923b11a8b262321c6229520c93115f82c78d742f041a650725d482f

    • SHA512

      b2048e775bccc0f0cc144fcfaa4e3067fa4ed2613f1e152323673c6497a82815d2ef366d29289214cf5f0007a3c8537af6f40b6ab07a1a936ed4f4612be9725a

    • SSDEEP

      1536:fgoIW1uYod+RuUl9Zh7teyDdvqMhRSiupwk8uXjlh17AY9j:otyuYod+RuAZh84vSiowk8uXjlh17AYR

    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

    • 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