Actors Insights|Latest update24/03/2025
Tortoiseshell Cluster
Suspected state sponsor: Islamic Republic of Iranobservatory results
First Seen:May 2018
Last Seen:Nov 2023
Indexed Reports:8
Public IOCs:454
Imperial Kitten
Imperial Kitten is named by CrowdStrike and at the moment 1 indexed report with 72 related IOCs
TA456
TA456 is named by Proofpoint and at the moment 1 indexed report with 5 related IOCs
Tortoiseshell
Tortoiseshell is named by Symantec and at the moment 4 indexed report with 237 related IOCs
UNC3890
UNC3890 is named by Mandiant and at the moment 1 indexed report with 45 related IOCs
Yellow Liderc
Yellow Liderc is named by PWC and at the moment 1 indexed report with 95 related IOCs
Most Common Tactics
Targeted Regions

EuropeEurope
Dec 2022 ~ Oct 2023
Dec 2022 ~ Oct 2023
Dec 2022 ~ Oct 2023
Dec 2022 ~ Oct 2023

IsraelIsrael
Nov 2020 ~ Aug 2022
Nov 2020 ~ Aug 2022
Nov 2020 ~ Aug 2022
Nov 2020 ~ Aug 2022
Mar 2022 ~ Nov 2023 May 2022 ~ May 2023 Nov 2020 ~ Aug 2022
Mar 2022 ~ Nov 2023 May 2022 ~ May 2023 Nov 2020 ~ Aug 2022
Mar 2022 ~ Nov 2023 May 2022 ~ May 2023
Mar 2022 ~ Nov 2023 May 2022 ~ May 2023
Mar 2022 ~ Nov 2023 May 2022 ~ May 2023
Mar 2022 ~ Nov 2023

Middle EastMiddle East
Mar 2022 ~ Nov 2023
Mar 2022 ~ Nov 2023
Mar 2022 ~ Nov 2023 Dec 2022 ~ Oct 2023
Mar 2022 ~ Nov 2023 Dec 2022 ~ Oct 2023
Mar 2022 ~ Nov 2023 Dec 2022 ~ Oct 2023
Mar 2022 ~ Nov 2023 Dec 2022 ~ Oct 2023

Saudi ArabiaSaudi Arabia
Jul 2018 ~ Sep 2019
Jul 2018 ~ Sep 2019
Jul 2018 ~ Sep 2019
Jul 2018 ~ Sep 2019
Jul 2018 ~ Sep 2019

United KingdomUnited Kingdom
Jul 2021 ~ Jul 2021

United StatesUnited States
Sep 2019 ~ Sep 2019
Jul 2021 ~ Jul 2021
Dec 2022 ~ Oct 2023
Dec 2022 ~ Oct 2023
Dec 2022 ~ Oct 2023
Dec 2022 ~ Oct 2023
Jan 2018Sep 2025
Recent Activities
Disclaimer: We are working on indexing and analyzing relevant data and this process is not fully completed yet. Therefore, displayed details and statistics may will change in the future.