Rewterz Threat Alert – APT29 Cozy Bear – Active IOCs
July 19, 2022Rewterz Threat Alert – AZORult Malware – Active IOCs
July 19, 2022Severity
Medium
Analysis Summary
NjRat is a Remote Access Trojan, which is found leveraging Pastebin to deliver a second-stage payload after initial infection. There are multiple versions of the secondary payload used, ranging from base64 encoded version, hexadecimal, 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 amounts of data via proxies
Impact
- Unauthorized Access
Indicators of Compromise
MD5
- baa939c9e6743094db15a1e63d8d3460
SHA-256
- 6aceb59f88b26f538acb7d291f6cb82a67e93dd1b644528c3f1b3ce92108513a
SHA-1
- 043a1a0a4141a255c83430688f694307681ed577
Remediation
- Block all threat indicators at your respective controls.
- Search for IOCs in your environment.