Rewterz Threat Alert – BlackCat Ransomware – Active IOCs

Severity

High

Analysis Summary

BlackCat – aka AlphaVM & AlphaV – is a Ransomware family that is deployed as a part of a Ransomware as a Service (RaaS). It is written in the Rust programming language and can run on Windows, Linux-based operating systems (Debian, Ubuntu, ReadyNAS, Synology), and VMWare ESXi.
This ransomware first appeared in November 2021. The majority of the group’s victims have been in the United States, although BlackCat and its associates have also targeted organizations in Europe, the Philippines, and other regions. Construction and engineering, retail, transportation, commercial services, insurance, machinery, professional services, telecommunication, auto components, and medicines are among the targeted sectors of BlackCat ransomware.
This ransomware can be set to encrypt files using either the AES or ChaCha20 algorithms. It can destroy volume shadow copies, terminate programs and services, and stop virtual machines on ESXi servers to maximize the quantity of ransomed data.

Indicators Of Compromise

MD5

• 07e71cd54f3ac00b2a34c7955e5c41a8
• 73b5dfc20005166103434eb1cdd8a3f1

SHA-256

• 67d1f4077e929385cfd869bf279892bf10a2c8f0af4119e4bc15a2add9461fec
• 0a609fa2db910615b2c1ad235ca46562ff4034800c44802a63a28826669a7eee

SHA-1

• 75b6eb3cc65a608abd9a96a3c5d158c944aadb15
• b3ad68165ab7d0c0cfe93472e7f96c55a6e027f9

Remediation

• Block all threat indicators at your respective controls.
• Search for IOCs in your environment.