Overview

overview

10

Static

static

1

73c5b71d29...2f.rtf

windows7-x64

10

73c5b71d29...2f.rtf

windows10-2004-x64

1

Sharing

Copy URL
Twitter E-mail

General

  • Target

    b5b2948d407676eab86b1152e7ce5ec4.bin

  • Size

    20KB

  • Sample

    240401-b22dhsad28

  • MD5

    6fd3c4ee79d84ef402518a825ba05bcd

  • SHA1

    9deed5b1528afe971b0005ff58619f69e8bdcf7a

  • SHA256

    15e65087e321bdd318fa2ff785a9f30596748be76bfc5cf7802a7823a461ae96

  • SHA512

    8314409dac7335f27bffaab297a262969a347fa0ac1b8965cb878e651c5ddfb4bab1bf01ca3ec27b74b1175fce7448774b365aa38df5785323c72ed7a5e5ba9a

  • SSDEEP

    384:xg3hNFgOkdiI/nOJQH3KRQFvCrZLa+jm6Rr+5MjV:xg3hNFgfiI/OJG6xtat6Z5V

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

      73c5b71d2923b11a8b262321c6229520c93115f82c78d742f041a650725d482f.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