Saturday, April 13, 2024

Hackers Steal NTLMv2 Hashes using Custom Powershell Scripts

A new sophisticated stealing campaign named  “Steal-It”  has been discovered that exfiltrates NTLMv2 hashes using customized versions of Nishang’s Start-CaptureServer PowerShell script.

It is believed that the Steal-It campaign may be attributed to APT28 (aka Fancy Bear) based on its similarities with the APT28 cyber attack.

Fancy Bear is a Russian cyber espionage group that uses zero-day exploits, spear phishing, and malware to compromise targets.

Zscaler Threat Labs recently discovered the campaign’s tactics and infection chain and shared its report.

NTLMv2 Hash Stealing Infection Chain

The NTLMv2 hash stealing infection chain steals NTLMv2 hashes by utilizing a customized Nishang’s Start-CaptureServer PowerShell script and transmitting the stolen hashes via mocky APIs to Mockbin.

SystemInfo Stealing Infection Chain

The Systeminfo stealing infection chain uses the OnlyFans brand to entice users into downloading the later stages of the chain, which exfiltrate command outputs to Mockbin.

Fansly Whoami Exfil Infection Chain

The Fansly whoami exfil infection chain uses the Fansly brand to entice users into downloading the later stages of the chain, which exfiltrate command outputs to Mockbin. 

Windows Update Exfil Infection Chain

ZIP archive bundled with an LNK file that uses geofencing techniques to target users in Belgium unknowingly downloads multiple stages of a PowerShell script that executes system commands to collect basic information for nefarious purposes. 

Among all the infection chains, the threat actor utilized customized scripts from the Nishang framework to steal and exfiltrate NTLM hashes by executing system commands.

Finally, mock APIs are used to exfiltrate the captured data from the compromised device.

Explicit images of models are used to entice victims to execute the initial payload in The Fansly Whoami Exfil and Exfil Sysinfo OnlyFans infection chain.

Threat actors use a geofencing strategy specifically targeting regions including Australia, Poland, and Belgium. 

Mockbin API, an endpoint-generating tool, and mock APIs are used to transfer stolen data, such as NTLM hashes and command output.

Keep informed about the latest Cyber Security News by following us on Google NewsLinkedinTwitter, and Facebook.

Website

Latest articles

Alert! Palo Alto RCE Zero-day Vulnerability Actively Exploited in the Wild

In a recent security bulletin, Palo Alto Networks disclosed a critical vulnerability in its...

6-year-old Lighttpd Flaw Impacts Intel And Lenovo Servers

The software supply chain is filled with various challenges, such as untracked security vulnerabilities...

Hackers Employ Deepfake Technology To Impersonate as LastPass CEO

A LastPass employee recently became the target of an attempted fraud involving sophisticated audio...

Sisence Data Breach, CISA Urges To Reset Login Credentials

In response to a recent data breach at Sisense, a provider of data analytics...

DuckDuckGo Launches Privacy Pro: 3-in-1 service With VPN

DuckDuckGo has launched Privacy Pro, a new subscription service that promises to enhance user...

Cyber Attack Surge by 28%:Education Sector at High Risk

In Q1 2024, Check Point Research (CPR) witnessed a notable increase in the average...

Midnight Blizzard’s Microsoft Corporate Email Hack Threatens Federal Agencies: CISA Warns

The Cybersecurity and Infrastructure Security Agency (CISA) has issued an emergency directive concerning a...
Guru baran
Guru baranhttps://gbhackers.com
Gurubaran is a co-founder of Cyber Security News and GBHackers On Security. He has 10+ years of experience as a Security Consultant, Editor, and Analyst in cybersecurity, technology, and communications.

Top 3 SME Attack Vectors

Securing the Top 3 SME Attack Vectors

Cybercriminals are laying siege to small-to-medium enterprises (SMEs) across sectors. 73% of SMEs know they were breached in 2023. The real rate could be closer to 100%.

  • Stolen credentials
  • Phishing
  • Exploitation of vulnerabilities

Related Articles