Saturday, July 20, 2024
EHA

Hackers Delivering Redaman Banking Malware Disguising as a PDF Document

A new malspam campaign delivering Redaman Banking Malware disguising as an PDF document. The Redman malware was first detected in the year 2015 and it targets customers of financial institutions in Russia.

Palo Alto Networks observed mass-distribution campaigns of Redaman in the Russian language for the last four month. The campaign primarily focuses Russian email recipients ending in ru. The file attachments are a windows executable disguised as PDF files.

The attachments are zip, 7-zip, gz and rar archives, the emails contain subject lines, message text, and attachments. Attackers use to change the attachment names constantly and referred to financial issues.

Redaman Banking Malware

Researchers found 3,845 email sessions attached with Redaman banking malware and the major senders are from Russia (3,456), Belarus (98), Ukraine (93), Estonia (29) and Germany (30).

Redaman Banking Malware

Once the Redaman Banking Malware executed it checks for the certain files or directories (cuckoo, fake_drive, Perl, strawberry, targets.xls, tsl, wget.exe, python ), if they dosen’t exists by throwing an exception, this beviour is to check it is running in sandbox or analysis environment.

If no exception occurs the executable drops a DLL in the temp directory and assigns a random file name under C:\ProgramData directory. It creates a scheduled task to make it persistent and executed everytime when users logged in.

Following are the Redaman Banking Malware Capabilities

  • Downloading files to the infected host
  • Keylogging activity
  • Capture screen shots and record video of the Windows desktop
  • Collecting and exfiltrating financial data, specifically targeting Russian banks
  • Smart card monitoring
  • Shutting down the infected host
  • Altering DNS configuration through the Windows host file
  • Retrieving clipboard data
  • Terminating running processes
  • Adding certificates to the Windows store

Once the infection completed the traffic will be sent to command and control (C2) sever and a small amount of traffic return form C2 server to the infected DLL client.

“We found over 100 examples of malspam during the last four months of 2018, and this blog provides a closer look at Redaman during that timeframe.”

Related Read

Android Released First Security updates for 2019 & Fixed 13 vulnerabilities – Update Your Phone Now

Spyware From Google Play as a Legitimate Android Apps That Infected 196 Country Users

Website

Latest articles

Hackers Claiming Dettol Data Breach: 453,646 users Impacted

A significant data breach has been reported by a threat actor known as 'Hana,'...

CrowdStrike Update Triggers Widespread Windows BSOD Crashes

A recent update from cybersecurity firm CrowdStrike has caused significant disruptions for Windows users,...

Operation Spincaster Disrupts Approval Phishing Technique that Drains Victim’s Wallets

Chainalysis has launched Operation Spincaster, an initiative to disrupt approval phishing scams that have...

Octo Tempest Know for Attacking VMWare ESXi Servers Added RansomHub & Qilin to Its Arsenal

Threat actors often attack VMware ESXi servers since they accommodate many virtual machines, which...

TAG-100 Actors Using Open-Source Tools To Attack Gov & Private Orgs

Hackers exploit open-source tools to execute attacks because they are readily available, well-documented, and...

macOS Users Beware Of Weaponized Meeting App From North Korean Hackers

Meeting apps are often targeted and turned into weapons by hackers as they are...

Hackers Exploiting Legitimate RMM Tools With BugSleep Malware

Since October 2023, MuddyWater, which is an Iranian threat group linked to MOIS, has...
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.

Free Webinar

Low Rate DDoS Attack

9 of 10 sites on the AppTrana network have faced a DDoS attack in the last 30 days.
Some DDoS attacks could readily be blocked by rate-limiting, IP reputation checks and other basic mitigation methods.
More than 50% of the DDoS attacks are employing botnets to send slow DDoS attacks where millions of IPs are being employed to send one or two requests per minute..
Key takeaways include:

  • The mechanics of a low-DDoS attack
  • Fundamentals of behavioural AI and rate-limiting
  • Surgical mitigation actions to minimize false positives
  • Role of managed services in DDoS monitoring

Related Articles