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

• d5d4dd13900a1fef828d4a0193ce05a2
• 87f9dd02e0c6346e6d1ca3957a83709a

SHA-256

• cda37b13d1fdee1b4262b5a6146a35d8fc88fa572e55437a47a950037cc65d40
• bacedbb23254934b736a9daf6de52620c9250a49686d519ceaf0a8d25da0a97f

SHA-1

• f95d865ef06f382bc9599a8093308afb9007ab89
• 1d6e2aeed499eb7d317b92b42d4a784b22d02dc6

Remediation

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