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September 22, 2023
Severity High Analysis Summary Ducktail Malware is a malicious program designed by hackers to infiltrate computers and networks globally. Ducktail malware is typically delivered through a […]September 22, 2023Severity Medium Analysis Summary First discovered in 2016, Revenge RAT is a remote access trojan (RAT) designed to give an attacker complete control over an infected […]September 22, 2023Severity High Analysis Summary The Konni APT (Advanced Persistent Threat) group is a cyber espionage group that has been active since at least 2014. It is […]Threat Insights
Before Rewterz got its start, the market was in dire need of a specialized and dedicated information security company. It was nearly impossible for businesses to find a trustworthy provider that could truly cover all of their bases. We wanted to meet this need, giving companies across the globe a chance to get ahead while knowing that their data is in good hands.
Connect with Us
Platform
Managed Security Services
Managed Penetration Testing
Rewterz penetration testing services help organizations determine if a cyber attacker can gain access to their critical assets while giving them detailed insights of the overall business impact of a cyber attack.
Resources
September 22, 2023Severity High Analysis Summary Ducktail Malware is a malicious program designed by hackers to infiltrate computers and networks globally. Ducktail malware is typically delivered through a […]September 22, 2023Severity Medium Analysis Summary First discovered in 2016, Revenge RAT is a remote access trojan (RAT) designed to give an attacker complete control over an infected […]September 22, 2023Severity High Analysis Summary The Konni APT (Advanced Persistent Threat) group is a cyber espionage group that has been active since at least 2014. It is […]Threat Insights
Before Rewterz got its start, the market was in dire need of a specialized and dedicated information security company. It was nearly impossible for businesses to find a trustworthy provider that could truly cover all of their bases. We wanted to meet this need, giving companies across the globe a chance to get ahead while knowing that their data is in good hands.
Connect with Us
Rewterz Threat Alert – New Watering Hole Identified for Credential Harvesting
January 30, 2020Rewterz Threat Alert – Microsoft Detects New Evil Corp Malware Attacks on Financial Institutions
January 31, 2020
Severity
High
Analysis Summary
APT34 (also known as OilRig or Helix Kitten) is a cluster of Iranian government-backed cyber espionage activities that has been active since 2014. The group is known to target various international organizations, mainly in the Middle East. Among their targeted industries are government agencies, financial services, energy and utilities, telecommunications, and oil and gas.
A file named survey.xls that was designed to look like an employee satisfaction survey tailored to either Westat employees or Westat customers.
At first the spreadsheet appeared to be blank. Only once the victim enables macros, the survey is displayed to the user and the malicious VBA code begins to execute.
The embedded VBA code unpacks a zip file into a temporary folder, extracts a “Client update.exe” executable file and installs it to “C:Users<User>valsClient update.exe”.
“Client update.exe” is actually a highly modified version of the TONEDEAF malware, which we named TONEDEAF 2.0. Finally, the crtt function creates a scheduled task “CheckUpdate” that runs the unpacked executable five minutes after being infected by it, as well as on future log-ons.
Impact
Exposure of sensitive information
Indicators of Compromise
SHA-256
- c10cd1c78c180ba657e3921ee9421b9abd5b965c4cdfaa94a58e383b45bb72ca
- a897164e3547f0ce3aaa476b0364a200769e8c07ce825bcfdc43939dd1314bb1
- d61eecd7492dfa461344076a93fc2668dc28943724190faf3d9390f8403b6411
- 20b3d046ed617b7336156a64a0550d416afdd80a2c32ce332be6bbfd4829832c
- 4c323bc11982b95266732c01645c39618550e68f25c34f6d3d79288eae7d4378
Remediation
- Block all threat indicators at your respective controls.
- Always be suspicious about emails sent by unknown senders.
- Never click on the links/attachments sent by unknown senders.