Rewterz Threat Alert – APT Group Gamaredon – Active IOCs

Severity

High

Analysis Summary

Gamaredon is a Russia-backed advanced persistent threat (APT) that has been operating since at least 2013. The group is believed to be operating out of Ukraine, and is thought to be focused on targeting Ukrainian government and military organizations, as well as individuals and organizations in the energy sector. The group has been known to use a variety of tactics to infiltrate its targets, including phishing, malware, and social engineering. The group has been linked to several high-profile cyber attacks, including the 2016 hack of the Ukrainian power grid that caused a blackout in the Ivano-Frankivsk region. Some experts believe that the Gamaredon APT group is closely tied to the Russian government and military intelligence services. The group is known for using a variety of tools to achieve its objectives, including malware, spear-phishing, and social engineering tactics.

In the recent campaign, Gamaredon was found targeting the Directorate General For Rendering Services To Diplomatic Missions of Ukraine.

The evidence of the original email received is attached below:

Impact

• Template Injection 
• Exposure of Sensitive Data

Indicators of Compromise

URL

• http://194.180.174.203/23.01/mo/baseball.DjVu

MD5

• 1994fa4183b160cfb8931100f218b331
• 801b0800b59e45135865c2c96257399e
• ebf7728724651e00053e83e4cadf4885

SHA-256

• afb612d08112c036628a29ed8d4bd4550ca7cfed2582e2f432f2283a9b507f15
• d124919de870b5974639ba24dd80709ed890119bdec4ba6a6179464fca4ef952
• 600ef7861ad03b434d98312a4133dc33fa1944f43c2e558044dfcdb342803147

SHA-1

• 18061b6bba37f658c57462a575b5e8000f1d005f
• 2c05a142e8862abe8a2296a6da39b33fc18f24f8
• 5862e9a784601f0854f5fc072eb17120954e4185

Remediation

• Block all threat indicators at your respective controls.
• Search for Indicators of compromise (IOCs) in your environment utilizing your respective security controls
• Do not download documents attached in emails from unknown sources and strictly refrain from enabling macros when the source isn’t reliable.
• Enable antivirus and anti-malware software and update signature definitions in a timely manner. Using multi-layered protection is necessary to secure vulnerable assets
• Along with network and system hardening, code hardening should be implemented within the organization so that their websites and software are secure. Use testing tools to detect any vulnerabilities in the deployed codes.