Rewterz Threat Alert – Cuba Ransomware – Active IOCs

Severity

High

Analysis Summary

Cuba – a Windows-based ransomware family – has been active since December 2019. To boost its damage and profitability, the perpetrators recently moved to release the stolen data similar to what we’ve seen previously with other significant ransomware operations. It is delivered by Hancitor malware, a loader notorious for dumping or executing stealers onto victims’ networks, such as RATs and other forms of ransomware. Cuba Ransomware targets companies in the financial, government, healthcare, manufacturing, and information technology industries, infecting Windows computers with the Hancitor malware.

Impact

• File Encryption
• Data Exfiltration
• Credential Theft
• Financial Loss

Indicators of Compromise

MD5

• 249442eec621c0316377a8774eba002b

SHA-256

• 0c0769a5018a37076a7511714d42ae035826e7708c92e23abb5d2aaeb9919dfa

SHA-1

• 3bd7c024de455668a047afc2a114b52e81fab56d

Remediation

• Never open attachments or links received by unknown senders.
• Emails from unknown senders should always be treated with caution.
• Look for IOCs in your surroundings.
• At your respective controls, disable all threat indicators.