Sunday, December 3, 2023

Hackers Spreading Zeus Sphinx Malware to Hijack Windows Process Using Malformed MS Word Documents

Researchers uncovered a new malspam campaign through which cyber criminals launching Zeus Sphinx Malware via Coronavirus Lure Malformed MS documents.

Since the novel Coronavirus pandemic rapidly spreading country to country, threat actors taking advantage of the trending news to tempting victims and attack their systems with the large scale of malspam campaign.

Researchers from IBM X-FORCE observed the Zeus Sphinx Malware activities in 2019, since then the activities of this campaign rapidly increased and they are mainly targeting the government relief payments and also continue to focus bank sectors in US, Canada, and Australia.

Maldoc Spam Delivery

Cybercriminals taking advantage of trending COVID-19 theme to distributing the Malformed MS word document through phishing, spam campaign.

Spam email urge victims to open the attachment and fill the document to receive the compensation from the Government, and they are distributing a variety of documents and the majority of documents with .doc or .docx files

Later the document request victims to enable executing a macro to trigger the infection chain and ended up hijacking the windows process to fetch the malware downloader.

The malware downloader then communication with the command and control server to fetch the new Zeus Sphinx malware payload.

New Zeus Sphinx variant starts off with the weaponized document that creates a malicious folder under %SYSTEMDRIVE% and writes a batch file into it.

According to the IBM report ” Once on the device, Sphinx establishes persistence via commonly used methods to maintain its grasp on the end user’s machine. In this case, it writes numerous folders and files to disk and adds some Registry keys in order to hide and manage its configuration files over time. “

Sphinx also capable of collecting the online account credentials from banks and a wide range of other websites using a web injection technique that has inherited from its Zeus v2 codebase.

Indicators of Compromise (IoCs)




VBS sample: 2FC871107D46FA5AA8095B78D5ABAB78

Sphinx samples:


Also Read:

Chinese APT Hackers Exploit MS Word Bug to Drop Malware Via Weaponized Coronavirus Lure Documents

Hackers Attack Windows Users with Info-Stealer Malware via Weaponized MS Word Documents

Major Vulnerabilities in Top Free Android VPN Apps Let Hackers Stealing Passwords, Photos, Messages From 120 Million Users


Latest articles

Active Attacks Targeting Google Chrome & ownCloud Flaws: CISA Warns

The CISA announced two known exploited vulnerabilities active attacks targeting Google Chrome & own...

Cactus Ransomware Exploiting Qlik Sense code execution Vulnerability

A new Cactus Ransomware was exploited in the code execution vulnerability to Qlik Sense...

Hackers Bypass Antivirus with ScrubCrypt Tool to Install RedLine Malware

The ScrubCrypt obfuscation tool has been discovered to be utilized in attacks to disseminate the RedLine Stealer...

Hotel’s Hacked Logins Let Attacker Steal Guest Credit Cards

According to a recent report by Secureworks, a well-planned and advanced phishing attack was...

Critical Zoom Vulnerability Let Attackers Take Over Meetings

Zoom, the most widely used video conferencing platform has been discovered with a critical...

Hackers Using Weaponized Invoice to Deliver LUMMA Malware

Hackers use weaponized invoices to exploit trust in financial transactions, embedding malware or malicious...

US-Seized Crypto Currency Mixer Used by North Korean Lazarus Hackers

The U.S. Treasury Department sanctioned the famous cryptocurrency mixer Sinbad after it was claimed...
BALAJI is an Ex-Security Researcher (Threat Research Labs) at Comodo Cybersecurity. Editor-in-Chief & Co-Founder - Cyber Security News & GBHackers On Security.

API Attack Simulation Webinar

Live API Attack Simulation

In the upcoming webinar, Karthik Krishnamoorthy, CTO and Vivek Gopalan, VP of Products at Indusface demonstrate how APIs could be hacked.The session will cover:an exploit of OWASP API Top 10 vulnerability, a brute force account take-over (ATO) attack on API, a DDoS attack on an API, how a WAAP could bolster security over an API gateway

Related Articles