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    Rewterz
    September 18, 2023
    Rewterz Threat Alert – Lumma Stealer Malware aka LummaC – Active IOCs
    Severity Medium Analysis Summary Lumma is an information stealer that is sold as a Malware-as-a-Service (MaaS) on Russian-speaking underground forums and Telegram. Lumma is an information […]
    September 18, 2023
    Rewterz
    September 18, 2023
    Rewterz Threat Advisory – Multiple WordPress Plugins Vulnerabilities
    Severity Medium Analysis Summary CVE-2023-4948 CVSS:4.3 WooCommerce CVR Payment Gateway Plugin for WordPress could allow a remote attacker to bypass security restrictions, caused by missing capability […]
    September 18, 2023
    Rewterz
    September 18, 2023
    Rewterz Threat Update – Microsoft Teams Used for Stealing Accounts by Ransomware Access Broker
    Severity High Analysis Summary Microsoft has stated that a ransomware group working with an initial access broker has recently started using Microsoft Teams for their phishing […]

    Threat Insights

    16
    pdf-file (1)
    Annual Threat Intelligence Report 2022
    • Threat Advisories
    • Monthly Threat Insights
    • Threat Intelligence Reports
  • Why Rewterz?

    About Us

    Before Rewterz got its start, the market was in dire need of a specialized and dedicated information security company. It was nearly impossible for businesses to find a trustworthy provider that could truly cover all of their bases. We wanted to meet this need, giving companies across the globe a chance to get ahead while knowing that their data is in good hands.

    Read More

    play_btn_Smallplay_btn_hover_Small
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    Our Leadership

    Our leadership team brings together years of knowledge and experience in cybersecurity to drive our company's mission and vision. Our team is passionate about delivering high-quality products and services, leading by example and assisting our clients in securing their organization’s environment.
    help

    CSR

    At Rewterz, we believe that businesses have a responsibility to impact positively and contribute to the well-being of our communities as well as the planet. That's why we are committed to operating in a socially responsible and sustainable way.

    Connect with Us

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Rewterz Threat Alert – Phishing Campaign Targets Precision Engineering Company

November 1, 2019

Severity

Medium

Analysis Summary

Attackers have targeted precision companies in Italy with phishing that is difficult to spot. The final payload is a fileless trojan that harvests credentials. The campaign used a legitimate-looking Microsoft Excel spreadsheet embedded with exploit code that moves silently to infect the computer.

The cybercriminals made all efforts to craft an email the victim company would typically receive from a customer. From body to sender’s address and the document attached, everything was spot on.

The spearphishing email was sent on October 26 to individuals in the sales department of the precision company. It had attached an Excel spreadsheet containing a list of spare parts identified with real catalog codes, quantities, and shipping addresses.

SpearPhishExcel-Ramilli_0.png

The exploit

Unlike the run-of-the-mill methods of infection that involve a Microsoft Office document, the cybercriminals behind this campaign did not embed malicious macro code in the Excel file, which would call for user interaction.

Instead, they opted for a stealthier variant, an exploit for a remote code execution security bug that would run automatically run code on the victim computer without user intervention as soon as the document was opened.

The vulnerability is an old one (CVE-2017-11882) in the Equation Editor component of Microsoft Office software, responsible for inserting or editing OLE objects in documents. It was fixed two years ago in Microsoft Office software but exploits are publicly available along with code to generate them.

Impact

Exposure of sensitive information

Indicators of Compromise

From Email

steel@vardhman.com

SH256

  • 863934c1fa4378799ed0c3e353603ba0bee3a357a5c63d845fe0d7f4ebc1a64c
  • 64114c398f1c14d4e840f62395edd9a8c43d834708f8d8fce12f8a6502b0e981

Remediation

  • Always be suspicious about emails sent by unknown senders.
  • Never click on the links/attachments by unknown senders.

Platform

  • Rewterz XDR
  • Rewterz Defense
  • Rewterz Threat Intelligence

Managed Security Services

  • Managed Security Monitoring
  • Remote SOC
  • Onsite SOC
  • Hybrid SOC

Assess

  • Compromise Assessment
  • APT Assessment
  • Penetration Testing
  • Architecture Design & Review
  • Red Team Assessment
  • Purple Team Assessment
  • Social Engineering
  • Source Code Review

Transform

  • SOC Consultancy
  • SOC Maturity Assessment
  • SOC Model Evaluation
  • SOC Gap Analysis
  • SIEM Gap Analysis
  • SIEM Optimization
  • SOC Content Pack

Train

  • Simulated Cyber Attack Exercise
  • Tabletop Exercise
  • Security Awareness and Training

Respond

  • Incident Analysis
  • Incident Response

Threat Insights

  • Threat Advisories
  • Monthly Threat Insights
  • Threat Intelligence Reports

Resources

  • Blog
  • Press Releases

Connect With Us

  • Contact
  • Careers
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