General

  • Target
    UploadThisFile.bat
  • Size 8KB
  • Sample260810-ymsjds11gz
  • SHA256 5abbf3bc75f08e11e7ab7c6993311f2e37101ed83a32579b59a826df1549b83a
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Language
  • ps1

Deobfuscated
Source
URLs
  • exe.dropper

    https://cdn.discordapp.com/attachments/1097938945595150366/1139051941381541908/RotkitInstalUninstall.exe

Extracted

Language
  • ps1

Deobfuscated
Source
URLs
  • exe.dropper

    https://cdn.akamai.steamstatic.com/client/installer/SteamSetup.exe

Targets

    • Target
      UploadThisFile.bat
    • Size 8KB
    • SHA256 5abbf3bc75f08e11e7ab7c6993311f2e37101ed83a32579b59a826df1549b83a
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Modifies Windows Defender DisableAntiSpyware settings

    • Modifies Windows Defender Real-time Protection settings

    • Modifies security service

    • Badlisted process makes network request

      Network request originating from process or tool commonly abused by malware.

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Command and Scripting Interpreter: PowerShell

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

    • Disables Task Manager via registry modification

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Loads dropped DLL

    • Hijack Execution Flow: Executable Installer File Permissions Weakness

      Possible Turn off User Account Control's privilege elevation for standard users.

    • Modifies Security services

      Modifies the startup behavior of a security service.

MITRE ATT&CK Enterprise v16

Tasks