Rewterz Threat Alert – FormBook Malware – Active IOCs
June 10, 2022Rewterz Threat Alert – NJRAT – Active IOCs
June 10, 2022Rewterz Threat Alert – FormBook Malware – Active IOCs
June 10, 2022Rewterz Threat Alert – NJRAT – Active IOCs
June 10, 2022Severity
High
Analysis Summary
Ryuk Ransomware is a ransomware family that was first found in the wild in August 2018. It is one of the most virulent ransomware strains on the market. Ryuk has been observed being used to attack companies or professional environments. This ransomware can lock your files or systems and hold them hostage for ransom. Ryuk targets high-profile enterprises in order to obtain essential information that will impair the victim’s operations.
Ryuk is a form of ransomware used in targeted attacks, in which threat actors encrypt important data to demand big ransom payments. Emotet or TrickBot malware is widely used to spread Ryuk ransomware. Ryuk’s code is comparable to that of the Hermes ransomware. The Ryuk ransomware is believed to be operated by the Russian cybercriminal group WIZARD SPIDER.
Impact
- File encryption
- Privilege Escalation
- Information Theft
- Data Exfiltration
- Network Compromise
Indicators of Compromise
MD5
- 2fd0b98a0f84fcedc9a30b88ae1124c5
- ffef678beca8ee60200bc88809d89630
- 987336d00fdbec3bcdb95b078f7de46f
SHA-256
- 4bc246545a0d8352ed566c890ff3a12ea783fd9baeaa3a18ad5c2b56d4c5f29e
- 320c98a9fd479c43fde9d3773a9eccd58e6cc63d1ba93343222c0b565460d689
- a9643eb83d509ad4eac20a2a89d8571f8d781979ad078e89f5b75b4bcb16f65e
SHA-1
- 2c687b9de9085c2bbdc1ff445e50c451bae01129
- b31070af1ac3e088dfc6f1599f8d12edb1b16783
- 8bbded5710280f055bf53f9e4f6c5abb596f7899
Remediation
- Block all threat indicators at your respective controls.
- Search for IOCs in your environment