Ficker Stealer

Ficker Stealer is a Rust-based malware targeting Windows systems to steal sensitive information, such as login credentials, credit card data, cryptocurrency wallets, and browser-stored details from applications like WinSCP, Discord, Google Chrome, and Electrum. Additionally, it functions as a file grabber to collect files from compromised machines and a downloader for deploying secondary malware payloads.

Key Insights

Ficker Stealer primarily spreads through phishing campaigns using malicious email attachments or links. It also exploits compromised websites that lure victims by offering free downloads of premium services like Spotify or YouTube Premium. Once the user engages with these deceptive elements, the malware is downloaded and activated.

Technical Composition

Developed in the Rust programming language, Ficker Stealer benefits from enhanced performance and obfuscation, making it harder to detect and analyze. Its modular structure enables a range of malicious activities, including keylogging, browser tracking, process injection, and data exfiltration, maximizing its effectiveness as an information stealer.

Malware-as-a-Service Model

Ficker Stealer is sold as part of a Malware-as-a-Service (MaaS) model on underground forums, operated by a threat actor known as '@ficker.' This business model allows multiple cybercriminals to customize and deploy the malware for their own campaigns, significantly expanding its reach and potential impact.

Known Variants

Ficker Stealer’s MaaS model has resulted in functional customizations tailored by different actors, but no distinct variants have been officially documented.

Mitigation Strategies

Avoid downloading software from untrusted or unofficial websites.
Regularly update operating systems and applications to fix known vulnerabilities.
Use advanced antivirus and anti-malware tools to block and remove threats.
Train users on identifying phishing campaigns and practicing safe browsing.

Targeted Industries or Sectors

Individual Users: Often lured by free software downloads from untrusted sources. Financial Services: Focused on harvesting sensitive financial credentials. Cryptocurrency Users: Targets cryptocurrency wallets and associated details.

Associated Threat Actors

Ficker Stealer is distributed via underground forums, enabling a variety of threat actors to adopt and deploy it anonymously, complicating attribution efforts.