Ransomware Intelligence

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brain cipher Ransomware Group

Ransomware group profile

24Victims
RussiaSource country
70Impact score

Description

Brain Cipher Ransomware is a financially motivated cybercriminal group known for deploying sophisticated ransomware attacks on large organizations since the early 2020s. The group employs advanced tactics such as double extortion, complete network infiltration, and data exfiltration to maximize ransom payouts. Their operations have targeted sectors including healthcare and finance, demonstrating a willingness to disrupt critical services for financial gain.

Key insights

  • Targets large organizations to maximize ransom payouts.
  • Utilizes double extortion tactics, threatening data release if ransoms are not paid.
  • Employs a modified variant of the LockBit 3.0 ransomware.
  • Engages in extensive network infiltration and data exfiltration before deployment.
  • Incorporates zero-day vulnerabilities and social engineering in their attacks.
  • Ransom demands typically range from $150,000 to $8 million, primarily paid in Monero.

Threat Level & Status Breakdown

For brain cipher · Based on incidents in selected period

4.5threat level
Aggressiveness5/ 10
Lethality2.9/ 10
Criticality5.7/ 10

Status Breakdown

Data Leaked58.3%14
Claimed41.7%10
First seenOct 2025
Last seenJul 2026
Avg ransom
Payment rate
Statusactive
Sophistication0
Last updatedAug 30, 2026

Recent activity

Monthly attack count for brain cipher in the selected period

24Total attacks
6peak in Jun
3avg / month
↓ 1 vs first month
OctJanFebMarAprMayJunJul02468

Intelligence

IOCs, YARA/Sigma rules, and related families for brain cipher

  1. 448f1796fe8de02194b21c0715e0a5f6
  2. 71c109f3bf4da2fc0173b9bcff07e979
  3. 9c5698924d4d1881efaf88651a304cb3
  4. 41050b2b9f619cdd9916e3bdd5b9f2f9
  5. b32a8951fc4c2e4c2d63d17200ca0032
  6. f94d17b5f232e9cfd2255ca9823cb18a
  7. 8b3a45ebb7f2331e90ac57a2a20536fd
  8. 0da1f4ede654e83241eaad7719a708a0
  9. 8dbd57b042bc63b9ecdc9e3e5506ce85
  10. 714b31629c37dee57038ca4e52ef65ac
  11. a0efa7fb6dff1e035510ec1f42e083e4
  12. 523c501118ef5d7957ce54aee86d9b1d
View full IOC feed21 total

TTPs & Attack Vectors

Tools, initial access, and MITRE ATT&CK techniques for brain cipher

Other

T1486

T1486

T1490

T1490

T1041

T1041

T1070

T1070

T1059

T1059

T1562

T1562

T1021

T1021

T1134

T1134

T1548.002

T1548.002

T1021.001

T1021.001

T1210

T1210

T1080

T1080

Victims(24)

United StatesManufacturingrobroy.com
Data Leaked
about 2 months ago
United StatesTechnologydigitaldynamics.com
Data Leaked
2 months ago
United StatesHealthcaregoldenstateortho.com
Data Leaked
2 months ago
BrazilHealthcarepaipharma.com
Claimed
2 months ago
United KingdomProfessional Servicessterlinggloballtd.com
Data Leaked
2 months ago
United StatesRetail & E-Commercethemintgaming.com
Claimed
2 months ago
United KingdomEnergy & Utilitiesanglomoil.com
Claimed
3 months ago
AustriaManufacturingalu-rex.com
Data Leaked
3 months ago
CanadaTechnologysquamish.net
Data Leaked
3 months ago
AustraliaProfessional Servicessheppadviser.com.au
Data Leaked
3 months ago
United KingdomEducationice.org.uk
Data Leaked
4 months ago
CanadaFinancial Servicessoundinsurance.ca
Data Leaked
5 months ago
United KingdomManufacturingendeavourautomotive.co.uk
Data Leaked
5 months ago
United Arab EmiratesTechnologyeworldme.com
Data Leaked
5 months ago
United StatesTechnologyliteline.com
Data Leaked
6 months ago
United StatesProfessional Serviceswestonconsulting.com
Data Leaked
6 months ago
CanadaOtherexceldor.ca
Data Leaked
6 months ago
United KingdomProfessional Servicesflbgroup.com
Claimed
7 months ago
JapanTechnologykisnet.co.jp
Claimed
7 months ago
CanadaTechnologynwlr.ca
Claimed
7 months ago

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