Analysis Summary

APT MuddyWater - an Iran-based APT - has been operating since at least 2017. This APT group utilizes the common but efficient infection vector, spear-phishing, to perform their tasks. It has mostly targeted countries in the Middle East but also affected countries in Europe and North America. The majority of the group's victims are in the telecoms, government (IT services), and oil industries. This group's activity was formerly related to FIN7, however, it is now regarded to be a separate entity driven by espionage.

MuddyWater's majority of attacks are based on social engineering. It lures its victims into activating macros so that would infect the targeted workstation. Once macros were turned on, the threat actor's code would try to download a trojan from an adversarial payload command and control node.

According to U.S. and U.K. federal agencies, MuddyWater is conducting cyber espionage and other malicious cyber operations as part of Iran’s Ministry of Intelligence and Security (MOIS), targeting a range of government and private-sector organizations across sectors—including telecommunications, defense, local government, and oil and natural gas—in Asia, Africa, Europe, and North America.

Impact

• Credential Theft
• Exposure to Sensitive Information

Indicators of Compromise

MD5

• 47198c5e434f94fa58f07553b398b46e
• d93562ef6487674c6a3442702be88f6b

SHA-256

• 45433919ffa87f30d38ca5aa3887f542dd2f077de744ada04893736796247e84
• be31aa3aeb47210eac50d659e659993ecf71ab29bf9e5bf22f70e9df71bcb0db

SHA1

• 074af5885c92fc1d2f76271d3ddbf697ea76fc77
• 9d86c404596247a845d9d7b4056d328e807ebeb9

URL

• http://ws.onehub.com/files/f5hk55dj

Remediation

• Block all threat indicators at your respective controls.
• Search for indicators of compromise (IOCs) in your environment utilizing your respective security controls.
• Log your eCommerce environment's network activity and web server activity.
• Implement strong passwords.
• Limit access to administrative accounts and portals to only relevant personnel and make sure they are not publicly accessible.
• Set up a Web Application Firewall with rules to block suspicious and malicious requests.
• Patch and upgrade any platforms and software on time. Prioritize patching known exploited vulnerabilities.
• Enable two-factor authentication.
• Enable antivirus and anti-malware software and update signature definitions promptly.