INTERNAL DOCUMENT - EVIDENCE COMPARISON

Invoice Comparison Analysis

Below are examples of a legitimate TechNova invoice (left) and a fraudulent version sent to customers (right). Note the subtle differences in formatting and critical changes to payment information.

Critical Differences: The fraudulent invoice contains different bank account details and subtle formatting changes. At least 5 customers have already paid to the fraudulent account.
✓ LEGITIMATE
Invoice #INV-4486

From:

TechNova Systems Pty Ltd
Level 12, 456 George Street
Sydney NSW 2000
ABN: 12 345 678 901
Phone: 1300 TECHNOVA

To:

Acme Corporation
123 Business Park
Melbourne VIC 3000
Contact: John Smith
accounts@acme.example

Invoice Details

Invoice Date: November 14, 2024
Due Date: November 28, 2024
Terms: Net 14 days

Services

Description Period Amount
Managed IT Services Nov 2024 $2,500.00
Cloud Backup (50GB) Nov 2024 $450.00
24/7 Helpdesk Support Nov 2024 $450.00
Total Due: $3,400.00 AUD

Payment Information

Bank: Commonwealth Bank of Australia
Account Name: TechNova Systems Pty Ltd
BSB: 062-000
Account Number: 1234 5678
Reference: INV-4486

Thank you for your business!

For queries: accounts@technova.example | 1300 TECHNOVA

⚠ FRAUDULENT
Invoice #INV-4486

From:

TechNova Systems Pty Ltd
Level 12, 456 George Street
Sydney NSW 2000
ABN: 12 345 678 901
Phone: 1300 TECHNOVA

To:

Acme Corporation
123 Business Park
Melbourne VIC 3000
Contact: John Smith
accounts@acme.example

Invoice Details

Invoice Date: November 14, 2024
Due Date: November 21, 2024 URGENT
Terms: Net 7 days - IMMEDIATE PAYMENT REQUIRED

Services

Description Period Amount
Managed IT Services Nov 2024 $2,500.00
Cloud Backup (50GB) Nov 2024 $450.00
24/7 Helpdesk Support Nov 2024 $450.00
Total Due: $3,400.00 AUD

UPDATED Payment Information NEW

⚠ Please note our updated banking details below:

Bank: ANZ Bank
Account Name: TechNova Systems Pty Ltd
BSB: 033-547
Account Number: 8976 5432
Reference: INV-4486

Due to system upgrade, please use these new details

Thank you for your business!

For queries: billing@technova-systems.net | 1300 TECHNOVA

Please update your records with our new bank details

Analysis Summary

Element Legitimate Invoice Fraudulent Invoice Red Flag
Bank Name Commonwealth Bank ANZ Bank 🚩 Different bank
BSB 062-000 033-547 🚩 Changed BSB
Account Number 1234 5678 8976 5432 🚩 Different account
Due Date 14 days (Nov 28) 7 days (Nov 21) 🚩 Urgency added
Contact Email accounts@technova.example billing@technova-systems.net 🚩 Different domain
Special Notes None "System upgrade" message 🚩 Excuse for change

Impact Assessment

Based on our investigation:

  • 23 legitimate invoices were downloaded by the attacker
  • Modified versions were sent to customers within 30 minutes
  • At least 5 customers have confirmed receiving fraudulent invoices
  • 2 customers have already paid $8,750 total to the fraudulent account
  • Remaining 18 customers are being contacted urgently

View access logs showing when these files were downloaded.