Overview

overview

10

Static

static

1

DocuSign_I...er.bat

windows10-2004-x64

10

DocuSign_I...er.bat

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    DocuSign_Installer.zip
  • Size 1KB
  • Sample261002-kctf2sdh67
  • SHA256 79b9c12e6286f917ceb76452f3bb175ce6395b73e1d7456f8e1b9d0979aabbdf
  • MD5 SHA1 SHA512 TLSH
Score
10/10
defense_evasiondiscoveryexecution

Malware Config

Extracted

Language

  • ps1

Source
URLs
  • exe.dropper

    https://update.microsoft.com

Extracted

Language

  • ps1

Source
URLs
  • exe.dropper

    https://us-cdn.action1.com/builtin/00000000-0000-0000-0000-000000000000_0000000000000_builtin/file.dat
  • exe.dropper

    https://eu-cdn.action1.com/builtin/00000000-0000-0000-0000-000000000000_0000000000000_builtin/file.dat
  • exe.dropper

    https://au-cdn.action1.com/builtin/00000000-0000-0000-0000-000000000000_0000000000000_builtin/file.dat
  • exe.dropper

    https://ifconfig.me/ip

Targets

    • Target
      DocuSign_Installer.bat
    • Size 3KB
    • SHA256 e6bc8521ad2466dce566aefc1b28be22af5f80dfb6413ad56c89222e51bef111
    • MD5 SHA1 SHA512 TLSH
    Score
    10/10
    defense_evasiondiscoveryexecution

    • Badlisted process makes network request

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

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

      execution

    • Deletes itself

      defense_evasion

    • Executes dropped EXE

    • Loads dropped DLL

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

      discovery

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

      discovery

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks