GrayBravoThreat actor
- TAG-150
TAG-150, also known as GrayBravo, is a sophisticated threat actor responsible for developing multiple custom malware families, including CastleLoader and CastleRAT, and operates a large-scale, multi-layered infrastructure.From MISP Galaxy
Last reported 26 days ago, by Risky Business News2 reports
ATT&CK techniques
4 techniques · each with the sentence it comes from- T1195Supply Chain Compromise
“We noted several global China-linked campaigns, such as APT group Lotus Blossom's Notepad++ supply-chain compromise and UNC2814’s campaign targeting telecoms and government entities worldwide.”
- T1552.004Private Keys
“…t 341 malicious “skills” published to ClawHub and GitHub that deliver info-stealing malware targeting cryptocurrency API keys, wallet private keys, SSH credentials and browser passwords.”
- T1657Financial Theft
“…ack spoofed Ukrainian judicial domains to target a senior legal advisor, aiming to gain remote access for intelligence gathering or financial theft.”
- T1684Social Engineering
“The infostealer, linked to the GrayBravo threat actor, is spreading through social engineering lures such as fake CAPTCHAs.”
Reports per month
last 12 monthsOctober so far (hatched). Counted by report, not by story.
What the reports say
2 reports, newest first · the exact sentence from each-
Risky Bulletin: Intel ends paid bug bounties“MuddyWater's rented arsenal: Iran-backed APT group MuddyWater has been renting tools from TAG-150, a Malware-as-a-Service platform run by Russian-speaking cybercriminals.”
-
Cyber Brief 26-03 - February 2026“The infostealer, linked to the GrayBravo threat actor, is spreading through social engineering lures such as fake CAPTCHAs.”
Indicators in its reports
named in the reports above- swarmcha[.]sein 1 report
Copy this indicator · defanged
Thanks — we review every report.