Overview

overview

10

Static

static

1

Offer ZI-0428.rtf

windows7-x64

10

Offer ZI-0428.rtf

windows10-1703-x64

1

Offer ZI-0428.rtf

windows10-2004-x64

1

Offer ZI-0428.rtf

windows11-21h2-x64

1

Resubmissions

01/07/2024, 12:39

240701-pvt8hssbpd10

01/07/2024, 11:57

240701-n4kvrstdkn4

Sharing

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General

  • Target
    Offer ZI-0428.doc
  • Size 293KB
  • Sample240701-pvt8hssbpd
  • SHA256 95be57795b850e5aa098c80a107bafdb581da7653d9b57b8f2d37b89880de224
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
remcosspitttcollectionexecutionratspywarestealer

Malware Config

Extracted

Family

  • remcos

Botnet

  • sPITTT

C2

  • antfly50.sytes.net:1980

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-BW3KDF

  • 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
      Offer ZI-0428.doc
    • Size 293KB
    • SHA256 95be57795b850e5aa098c80a107bafdb581da7653d9b57b8f2d37b89880de224
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    remcosspitttcollectionexecutionratspywarestealer

    • 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 to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

      execution

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Loads dropped DLL

    • 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

    behavioral1behavioral2behavioral3behavioral4

MITRE ATT&CK Enterprise v15

Tasks