J
J is an emerging ransomware group that launched its leak site in May 2025, claiming over 41 victims by late 2025 including FAI Aviation Group (Germany), operating primarily as a leak-site-centric extortion identity with limited public technical analysis.
Victims
41
First Victim
2025-02-17
(est. attack date)
Discovery Date
2025-05-02
Last Seen
2025-11-09
Inactive Since
292
days
Avg Delay
27.4
days
Infostealer
39.5%
victims with domain
Countries
18
hit
Uptime
0.0% avg (30d)
Attack Velocity — Last 12 months (based on attack estimated date if available)
Known Locations (2)
| Favicon | Title | Type | Available | Last Visit | Server Info | FQDN | Status | |
|---|---|---|---|---|---|---|---|---|
|
Posts | J Blog | No | 2026-08-22T08:47:32 |
twniiyed6mydtbe64i5mdl56nihl7atfaqtpww6gqyaiohgc75apzpad.onion
|
||||
|
J | No | 2026-08-22T08:47:46 |
w4d5aqmdxkcsc2xwcz7w7jo6wdmvmakgy3y6mfmdtzmyvxe77cjkfbad.onion
|
Target
Top 5 Activity Sectors
- Technology 8
- Manufacturing 6
- Professional Services 5
- Government & Defense 3
- Retail & E-Commerce 3
Top 5 Countries
-
United States
6
-
United Kingdom
4
-
Germany
3
-
France
3
-
Argentina
3
Heatmap
YARA Rules (1)
Indicators of Compromise (IoCs) (6)
Hash MD5
6
Victims (41)
[AI generated] Dimensional Control Systems (DCS) is a company specializing in quality management and…
[AI generated] AZpro Group is a multi-faced company that specializes in graphic design, installation…
[AI generated] Petro-Diamond is a commodity trading subsidiary of Mitsubishi Corporation. It's invol…
[AI generated] J. E. Stacey & Co. Ltd is a UK-based civil engineering firm specializing in the const…
[AI generated] Virtual Projects is a construction-focused firm based in Northern California. They ar…
[AI generated] FAI Aviation Group is a global aviation service provider based in Germany. The compan…
[AI generated] "Bridgerecruit.co.uk", also known as Bridge Recruitment, is a UK-based recruitment fi…
[AI generated] Gimaex is a leading French company specializing in the design and manufacturing of fi…
[AI generated] Fecovita is Argentina's largest wine co-operative and exporter, representing over 29 …
[AI generated] Rhodar is a leading UK company specializing in asbestos removal, demolition and remed…
[AI generated] Diffazur is one of the leading French companies that specializes in designing and bui…
[AI generated] Venezolana de Pinturas is a Venezuelan company specializing in the production and com…
[AI generated] Daycohost is a Latin American company specializing in comprehensive IT services. Head…
[AI generated] Immobilia.hu is a Hungary-based real estate company that specializes in letting, sell…
[AI generated] Ratna Sagar is an educational publishing company based in India with over three decad…
[AI generated] The Rose Kennedy Greenway is a contemporary public park in Boston, Massachusetts. Nam…
[AI generated] Laticrete is a leading international manufacturer specializing in the construction in…
