Rewterz Threat Alert – Vidar Malware – Active IOCs
August 23, 2021Rewterz Threat Alert – FormBook Malware – Active IOCs
August 23, 2021Rewterz Threat Alert – Vidar Malware – Active IOCs
August 23, 2021Rewterz Threat Alert – FormBook Malware – Active IOCs
August 23, 2021Severity
Medium
Analysis Summary
NjRat is a Remote Access Trojan, which is found leveraging Pastebin to deliver second-stage payload after initial infection. There are multiple versions of the secondary payload used, ranging from base64 encoded version, hexadecimals, JSON data format, compressed blobs and also plain text data with malicious URLs embedded within. This is done in order to evade detection by security products and increase the possibility of operating unnoticed. njRat is developed in .NET framework and is able to hijack the functions of a compromised machine remotely, including taking screenshots, exfiltrating data, keylogging, and killing processes such as antivirus programs, while also connecting the machine to a botnet. RAT was also found abusing Windows API functions such as Windows API calls such as GetKeyboardState(), GetAsynckeyState(), MapVirtualKey() for keylogging and data theft. It was also discovered downloading web scraping tools such as “proxy scrapper” in order to extract large amount of data via proxies.
Impact
- Unauthorized Remote Access
- Data Exfiltration
- Credential Theft
Indicators of Compromise
IP
- 199[.]59[.]242[.]153
MD5
- 91787ae32bcbd8cdd9c2e249a220abcf
SHA-256
- 68720f1a55844aa176dcaa0c6b682e357f95367259e999e73d10b50316cc6ea2
SHA1
- f7b23ba8d851610e34f52abbf7941c0bb0c13fd0
URL
- https[:]//anonfiles[.]com/hbk7gbddp8/Venom_Software_Cracked_rar
Remediation
- Block all threat indicators at your respective controls.
- Search for IOCs in your environment.