Group-IB Threat Intelligence uncovered a sophisticated phishing campaign orchestrated by the Advanced Persistent Threat (APT) MuddyWater, targeting international organizations worldwide to gather foreign intelligence.
MuddyWater accessed the compromised mailbox through NordVPN(a legitimate service abused by the threat actor), and used it to send phishing emails that appeared to be authentic correspondence. By exploiting the trust and authority associated with such communications, the campaign significantly increased its chances of deceiving recipients into opening the malicious attachments.
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Source: Group-IB
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