Tuesday, March 19, 2024

Password-stealing Malware ‘Predator the Thief’ Delivered Through Weaponized Word Documents

The new version of Predator the Thief malware distributed through fake invoice documents aimed to steal sensitive user information.

The malware was first observed by Fortinet in July of 2018, the threat actors behind the malware family upgrading it in short intervals to make it more stealthy.

It is fully written in C/C++ and the malware sold in underground forums pricing between $35 to $80.

Predator the Thief Latest Campaign

Fortinet observed a recent campaign of Predator the Thief with version 3.3.4 with enhanced capabilities.

The campaign uses multiple fake invoice documents that deliver Predator the Thief malware as the final payload.

Once the user opens the word document, AutoOpen macro runs the malware VBA script, which downloads three files using Powershell.

Predator the Thief
Malware Process Flow

VjUea.dat – Legitimate version of AutoIt3.exe
SevSS.dat – Base64-encoded AutoIt script that uses certutil.exe for decoding
apTz.dat – RC4-encrypted Predator the Thief malware

The SevSS.dat script decoded by using the certutil.exe tool once decoded it uses legitimate AutoIt3.exe to run decoded AutoIt script. Then AutoIt script decrypts the apTz.dat, which is the final payload of Predator the Thief.

The malware sends the stolen information as a zip file, the zip file won’t get generated in the file system, instead, it adds the zip file directly from memory to the request data.

C2 Server Communications

Communication with the C2 servers established through API and they are encrypted using basic base64 and RC4 algorithms.

The following are the information collected and sent to the C2 servers.

  1. Password Information
  2. Cookies
  3. Payment cards
  4. Steam, Skype accounts information
  5. Wallets Information
  6. Telegram accounts
  7. Crc32 checksum anti-debug result
  8. Module execution method configuration

The malware continues to evolve and abuses legitimate tools to execute the payload and to avoid detection.

Website

Latest articles

Beware Of Free wedding Invite WhatsApp Scam That Steal Sensitive Data

The ongoing "free wedding invite" scam is one of several innovative campaigns aimed at...

Hackers Using Weaponized SVG Files in Cyber Attacks

Cybercriminals have repurposed Scalable Vector Graphics (SVG) files to deliver malware, a technique that...

New Acoustic Keyboard Side Channel Attack Let Attackers Steal Sensitive Data

In recent years, personal data security has surged in importance due to digital device...

Discontinued WordPress Plugin Flaw Exposes Websites to Cyber Attacks

A critical vulnerability was discovered in two plugins developed by miniOrange.The affected plugins,...

ShadowSyndicate Hackers Exploiting Aiohttp Vulnerability To Access Sensitive Data

A new Aiohttp vulnerability has been discovered, which the threat actor ShadowSyndicate exploits.Aiohttp...

Hackers Launching AI-Powered Cyber Attacks to Steal Billions

INTERPOL's latest assessment on global financial fraud uncovers the sophisticated evolution of cybercrime, fueled...

Fujitsu Hacked – Attackers Infected The Company Computers with Malware

Fujitsu Limited announced the discovery of malware on several of its operational computers, raising...
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.

Mitigating Vulnerability Types & 0-day Threats

Mitigating Vulnerability & 0-day Threats

Alert Fatigue that helps no one as security teams need to triage 100s of vulnerabilities.

  • The problem of vulnerability fatigue today
  • Difference between CVSS-specific vulnerability vs risk-based vulnerability
  • Evaluating vulnerabilities based on the business impact/risk
  • Automation to reduce alert fatigue and enhance security posture significantly

Related Articles