Rewterz Threat Alert – Lumma Stealer Malware aka LummaC – Active IOCs

Severity

High

Analysis Summary

Lumma is an information stealer that is sold as a Malware-as-a-Service (MaaS) on Russian-speaking underground forums and Telegram. Lumma is an information stealer, which means its primary purpose is to steal sensitive data from infected systems. Lumma is written in the C programming language, which allows for efficient and low-level access to system resources. It is distributed as a service by LummaC, the seller, on Russian-speaking underground forums and Telegram channels. Lumma places a particular emphasis on stealing cryptocurrency wallets. This indicates that the malware is designed to target and extract sensitive information related to cryptocurrency, such as private keys or wallet.dat files. In addition to its focus on cryptocurrency wallets, Lumma also possesses file grabber capabilities.

To protect against Lumma Stealer and similar threats, it is essential to follow security best practices. This includes regularly updating software and operating systems, using strong and unique passwords, implementing multi-factor authentication, exercising caution when opening email attachments or clicking on suspicious links, and using reputable antivirus/anti-malware solutions. Security awareness training can also help users recognize and avoid phishing attempts.

Impact

• Data Exfiltration
• Credential Theft
• Information Theft
• Financial Loss

Indicators of Compromise

MD5

• a38ae8a1930668deab4303643fa01807
• 7d7356c0cfb9265b7e61bd38a99f68c7
• 3715ca8d93d5a5bdc499013cfc55da11
• 52f903dbe3ca5e9145cb328520589b0b
• f99da706c2b5ef8f0dfdd882bcd31bae
• fc163bfdeb6e36b226e816f4d58af8b6

SHA-256

• 3dff203bab1db4bd7012e5daa23e467f7919587e5a306e497edb85caa2497dbe
• bcd079ed77301cc5f6a0443ccb3c5b4fe4a4b660ad61d5bcc40f0224c8c2da63
• bb90c8c39ba60347b2d5f2a73a11f9c1f9f7e16251ca3098e4c087257bcce09b
• 75192af4db5d8171b67b5991696cd8c8a0a5e496342b687b1664b86383835d96
• 2dc0f50fa7eb53be17b578fbcb66a5ec8c40d250fd9be7b2b96663624fa4dba8
• 379d1597e3930745f2652d746d6671a801390d86e16c8694e0ff46132d915aba

SHA-1

• 36db91eaf9927c112e3ee2226dddae9e79e02562
• 007c599c04fe7b75911e24c6cfbccd768350fca7
• e6c0c9a85aa722a06f3d4dd15e0aec7c779fad25
• 3d69a781f5fa8e07271d9170d5256a6d30ecd269
• f13c62665f2aaec4c82bbfba164024cdaf26cb7a
• f04406d51542af259d53990d46f31cf7068b23fc

Remediation

• Block all threat indicators at your respective controls.
• Search for Indicators of compromise (IOCs) in your environment utilizing your respective security controls
• Emails from unknown senders should always be treated with caution.
• Never trust or open links and attachments received from unknown sources/senders.
• Enable antivirus and anti-malware software and update signature definitions in a timely manner. Using multi-layered protection is necessary to secure vulnerable assets
• Patch and upgrade any platforms and software timely and make it into a standard security policy. Prioritize patching known exploited vulnerabilities and zero-days.