Rewterz Threat Alert – Threat Actors Targeting Users with Covid-19 Vaccination Program

Severity

High

Analysis Summary

COVID-19 vaccination program is being used in a variety of malicious campaigns including email spam, BEC, malware, ransomware, and malicious domains. As the number of those afflicted continue to surge by thousands, campaigns that use the disease as a lure likewise increase. COVID-19 is being weaponized for scare tactics by threat actors for conducting malicious activity utilizing different Tactics, Techniques, and Procedures (TTPs). Threat actors are luring using lure documents and malicious lookalike URLs to lure users to visit malicious websites and asking for their credentials and other personal information which can be later misused against the victim. This time around, threat actors have turned their shift towards the vaccination program, multiple malicious files have been pushed to the users to get themselves vaccinated along with their families. These files have been consistently pushed in various regions with a sense of urgency among the users to get themselves vaccinated as soon as possible. 

The timing of this campaign is important since the world has now adapted to this change in the environment and everyone is now undergoing the vaccination program. A lot of discrepancies have already been discovered regarding the vaccination program and this has got the attention of the threat actors and now they’re exploiting in full flow. 

Impact

• Credential theft
• Exposure of sensitive data

Indicators of Compromise

Filename

• Covid Vaccination On Emergency Basis for All Employees and their Familes[.]pdf[.]lnk
• Covid Vaccination[.]pdf[.]lnk
• vaccination[.] zip

MD5

• ced4a3d54c12ff49b5b9bd562d935b3c
• 59f75e551c588293e37939bb480eace2

SHA-256

• 7f800784b00354dd15eee129317a63bd3f7bb25622e898c873603e5b142cbb09
• bf31145ea7ae06bce7bf53edcfe548fea4047055a6c9c6aba143dc1ef64ad504

SHA1

• 0ebeb0cd677d2410cb2204a5a3990782e95def2c
• 4e74a202370bf18b8b820aacfe006247d2138645

URL

• http[:]//5-135-125-106[.]cinfuserver[.]com/Emergency_Vaccination/css/
• https[:]//londonkids[.]in/preschool/video/Emergency_Vaccination/css/

Remediation

• Block all threat indicators at your respective controls.
• Search for IOCs in your environment.
• Always be suspicious about emails sent by unknown senders.
• Never click on the links/attachments sent by unknown senders.