Overview

overview

10

Static

static

1

cf8a4347a6...bf.rtf

windows7-x64

10

cf8a4347a6...bf.rtf

windows10-2004-x64

1

Sharing

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General

  • Target

    cf8a4347a63217989fc4ff28c63c90fc856c44bf

  • Size

    33KB

  • Sample

    240520-n4a1kaag41

  • MD5

    b49e82d82e42553a3bec494f51e0c84f

  • SHA1

    cf8a4347a63217989fc4ff28c63c90fc856c44bf

  • SHA256

    a976c7bc63c96a019876f7eb675e26ac636d96fa1a68ea25601b87df911782af

  • SHA512

    c0c980a1b5d1b94bf13112b7a34168691e28661c3855b4685f9b81935f8d34cb35514a80c5f2872c7dc21cf5c6702b6d827e284dbb14f8b274ced2131d53f718

  • SSDEEP

    384:m+rU86fv9Erf3BsuSM+5RFUM0SM1kkkuLR4YA7dT8sMwyXd5CPhcjEQ:LI86fV8PWDRFcx1Idl1+XdbEQ

Score
10/10
remcosremotehostcollectionexecutionratspywarestealer

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

bunnea.duckdns.org:2405

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-NX7NY7

  • 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

      cf8a4347a63217989fc4ff28c63c90fc856c44bf

    • Size

      33KB

    • MD5

      b49e82d82e42553a3bec494f51e0c84f

    • SHA1

      cf8a4347a63217989fc4ff28c63c90fc856c44bf

    • SHA256

      a976c7bc63c96a019876f7eb675e26ac636d96fa1a68ea25601b87df911782af

    • SHA512

      c0c980a1b5d1b94bf13112b7a34168691e28661c3855b4685f9b81935f8d34cb35514a80c5f2872c7dc21cf5c6702b6d827e284dbb14f8b274ced2131d53f718

    • SSDEEP

      384:m+rU86fv9Erf3BsuSM+5RFUM0SM1kkkuLR4YA7dT8sMwyXd5CPhcjEQ:LI86fV8PWDRFcx1Idl1+XdbEQ

    Score
    10/10
    remcosremotehostcollectionexecutionratspywarestealer

    • 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

    • 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