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Ransomware group profile ยท #118 by claimed victims

M3Rx ransomware

M3rx is a small ransomware group first observed in 2025, using AES-CTR/AES-GCM encryption and targeting organizations in England, the US, Australia, Germany, Italy, and Switzerland, with around eight claimed victims including a Sydney-based property firm.

Active First seen Apr 2026
44Victims claimed on leak sites
0Victims in the last 30 days
8Victims in the last 90 days
20Countries hit
2Leak-site URLs tracked, 1 online
29 Sep 2026Latest claim recorded

Victimology

Who M3Rx claims to have breached, from 44 leak-site posts recorded by VULONE.

Claims per month last 12 months

Dec 2025: 0DecJan 2026: 0Feb 2026: 0Mar 2026: 0MarApr 2026: 8May 2026: 12Jun 2026: 6JunJul 2026: 10Aug 2026: 1Sep 2026: 7SepOct 2026: 0Nov 2026: 0

Top sectors

Professional Services17
Technology8
Retail & E-Commerce7
Other2
Manufacturing2
Transportation2
Agriculture and Food Production1
Healthcare1

Top countries

United States10
Canada4
Germany4
United Kingdom4
Australia3
Italy2
Brazil2
Spain2

Latest claimed victims 12 most recent

VictimSectorCountryClaimed
intense.pl intense.pl Technology PL 29 Sep 2026
oterolaw.com oterolaw.com Professional Services US 29 Sep 2026
somasolucoes.com somasolucoes.com Professional Services BR 29 Sep 2026
noonsugar.com noonsugar.com Retail & E-Commerce AE 29 Sep 2026
iccsi.com iccsi.com Professional Services - 29 Sep 2026
cpacb.com cpacb.com Professional Services CA 29 Sep 2026
cipher.systems cipher.systems Technology US 26 Sep 2026
tecnoabi.com tecnoabi.com Technology BR 14 Aug 2026
hydraulic-components.net hydraulic-components.net Manufacturing DE 26 Jul 2026
createinfor.pt createinfor.pt Professional Services PT 26 Jul 2026
servicebypremier.com servicebypremier.com Professional Services US 26 Jul 2026
ausproof.com.au ausproof.com.au Professional Services AU 24 Jul 2026

All 44 M3Rx victims, searchable

Full victim list with claim posts, domains, timing and exports, plus the negotiation chats and leak-site screenshots VULONE archives for this crew.

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Tactics, techniques and procedures

ATT&CK technique mapping for M3Rx is in progress. Victimology, infrastructure status and leak-site tracking are live above.

Indicators, detections and the full playbook

Hashes, C2 addresses, onion services, Sigma and YARA detections per technique, and the negotiation transcripts are available to signed-in analysts.

See full IOCs

Frequently asked

Is M3Rx ransomware still active?
M3Rx is tracked as active. The most recent leak-site claim VULONE recorded is dated 29 September 2026.
How many victims has M3Rx claimed?
VULONE has recorded 44 leak-site victim claims attributed to M3Rx since April 2026, across 20 countries and 9 sectors.
Which industries does M3Rx target?
The sectors most often named on the M3Rx leak site are Professional Services, Technology, Retail & E-Commerce.
Which countries are most affected by M3Rx?
Most M3Rx victims recorded by VULONE are located in United States, Canada, Germany.
Where does VULONE get M3Rx victim data?
Claims are collected continuously from the group's own leak sites and cross-checked with ransomware.live and RansomLook. A claim is the group's assertion, not a confirmed breach.

Other ransomware groups

Victim claims are collected from leak sites and enrichment partners (ransomware.live, RansomLook) and represent the group's own assertions, not confirmed breaches. Profile last updated 31 October 2026. Questions or corrections: research@vulone.com.