{
	"id": "1066e522-d103-4ac7-88c2-54c298a0b611",
	"created_at": "2026-04-06T01:30:40.840124Z",
	"updated_at": "2026-04-10T03:38:20.102361Z",
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	"sha1_hash": "972eaddd1c28d9ad269f87e1f482a64f93e49ae2",
	"title": "Radiant links $50 million crypto heist to North Korean hackers",
	"llm_title": "",
	"authors": "",
	"file_creation_date": "0001-01-01T00:00:00Z",
	"file_modification_date": "0001-01-01T00:00:00Z",
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	"plain_text": "Radiant links $50 million crypto heist to North Korean hackers\r\nBy Bill Toulas\r\nPublished: 2024-12-09 · Archived: 2026-04-06 00:36:07 UTC\r\nRadiant Capital now says that North Korean threat actors are behind the $50 million cryptocurrency heist that occurred after\r\nhackers breached its systems in an October 16 cyberattack.\r\nThe attribution comes after investigating the incident, assisted by cybersecurity experts at Mandiant, who say the attack was\r\nconducted by North Korean state-affiliated hackers known as Citrine Sleet, aka \"UNC4736 and \"AppleJeus.\"\r\nThe US previously warned that North Korean threat actors targeting cryptocurrency firms, exchanges, and gaming\r\ncompanies to generate and launder funds to support the country's operations.\r\nhttps://www.bleepingcomputer.com/news/security/radiant-links-50-million-crypto-heist-to-north-korean-hackers/\r\nPage 1 of 5\n\n0:00\r\nhttps://www.bleepingcomputer.com/news/security/radiant-links-50-million-crypto-heist-to-north-korean-hackers/\r\nPage 2 of 5\n\nVisit Advertiser websiteGO TO PAGE\r\nOctober incident\r\nRadiant is a decentralized finance (DeFi) platform that allows users to deposit, borrow, and manage cryptocurrency across\r\nmultiple blockchain networks.\r\nThe platform utilizes Ethereum blockchain security through the Arbitrum Layer 2 scaling system and operates under a\r\ncommunity-driven system enabling users to participate in governance through RDNT lockers, submit proposals, and vote on\r\nactive initiatives.\r\nOn October 16, 2024, Radiant announced it suffered a $50M breach caused by 'sophisticated malware' targeting three trusted\r\ndevelopers whose devices were compromised to execute the unauthorized transactions.\r\nThe hackers appeared to have exploited the routine multi-signature process, collecting valid signatures under the guise of\r\ntransaction errors and stealing funds from Arbitrum and Binance Smart Chain (BSC) markets.\r\nThe attack bypassed hardware wallet security and multiple verification layers, and transactions appeared normal during\r\nmanual and simulation checks, indicative of high sophistication.\r\nFinger pointed at North Korea\r\nFollowing an internal investigation of the attack, aided by Mandiant, Radiant could now share more information about the\r\nmalware used and the perpetrators behind it.\r\nThe attack started on September 11, 2024, when a Radiant developer received a Telegram message spoofing a former\r\ncontractor, tricking them into downloading a malicious ZIP file.\r\nThe archive contained a PDF file to be used as a decoy and a macOS malware payload named 'InletDrift,' which established\r\na backdoor on the infected device.\r\nhttps://www.bleepingcomputer.com/news/security/radiant-links-50-million-crypto-heist-to-north-korean-hackers/\r\nPage 3 of 5\n\nDecoy PDF file used in the attack\r\nSource: Radiant\r\nRadiant says the attack was so well-designed and flawlessly executed that it bypassed all security measures in place.\r\n\"This deception was carried out so seamlessly that even with Radiant's standard best practices, such as simulating\r\ntransactions in Tenderly, verifying payload data, and following industry-standard SOPs at every step, the attackers were able\r\nto compromise multiple developer devices,\" explained Radiant.\r\n\"The front-end interfaces displayed benign transaction data while malicious transactions were signed in the background.\r\nTraditional checks and simulations showed no obvious discrepancies, making the threat virtually invisible during normal\r\nreview stages.\"\r\nMandiant assessed with high confidence that the attack was conducted by UNC4736, the same threat group that was\r\nexposed for exploiting a zero-day vulnerability on Google Chrome earlier this year.\r\nGiven the successful bypass of its security measures, Radiant underlines the need for more robust, device-level solutions to\r\nenhance transaction security.\r\nAs for the stolen funds, the platform says it is collaborating with U.S. law enforcement and zeroShadow to recover any\r\namounts possible.\r\nhttps://www.bleepingcomputer.com/news/security/radiant-links-50-million-crypto-heist-to-north-korean-hackers/\r\nPage 4 of 5\n\nAutomated Pentesting Covers Only 1 of 6 Surfaces.\r\nAutomated pentesting proves the path exists. BAS proves whether your controls stop it. Most teams run one without the\r\nother.\r\nThis whitepaper maps six validation surfaces, shows where coverage ends, and provides practitioners with three diagnostic\r\nquestions for any tool evaluation.\r\nSource: https://www.bleepingcomputer.com/news/security/radiant-links-50-million-crypto-heist-to-north-korean-hackers/\r\nhttps://www.bleepingcomputer.com/news/security/radiant-links-50-million-crypto-heist-to-north-korean-hackers/\r\nPage 5 of 5",
	"extraction_quality": 1,
	"language": "EN",
	"sources": [
		"ETDA"
	],
	"references": [
		"https://www.bleepingcomputer.com/news/security/radiant-links-50-million-crypto-heist-to-north-korean-hackers/"
	],
	"report_names": [
		"radiant-links-50-million-crypto-heist-to-north-korean-hackers"
	],
	"threat_actors": [
		{
			"id": "34eea331-d052-4096-ae03-a22f1d090bd4",
			"created_at": "2025-08-07T02:03:25.073494Z",
			"updated_at": "2026-04-10T02:00:03.709243Z",
			"deleted_at": null,
			"main_name": "NICKEL ACADEMY",
			"aliases": [
				"ATK3 ",
				"Black Artemis ",
				"COVELLITE ",
				"CTG-2460 ",
				"Citrine Sleet ",
				"Diamond Sleet ",
				"Guardians of Peace",
				"HIDDEN COBRA ",
				"High Anonymous",
				"Labyrinth Chollima ",
				"Lazarus Group ",
				"NNPT Group",
				"New Romanic Cyber Army Team",
				"Temp.Hermit ",
				"UNC577 ",
				"Who Am I?",
				"Whois Team",
				"ZINC "
			],
			"source_name": "Secureworks:NICKEL ACADEMY",
			"tools": [
				"Destover",
				"KorHigh",
				"Volgmer"
			],
			"source_id": "Secureworks",
			"reports": null
		},
		{
			"id": "e265bb3a-eb4c-4999-9b1d-c24a0d05a7f0",
			"created_at": "2023-12-21T02:00:06.096716Z",
			"updated_at": "2026-04-10T02:00:03.502439Z",
			"deleted_at": null,
			"main_name": "UNC4736",
			"aliases": [],
			"source_name": "MISPGALAXY:UNC4736",
			"tools": [],
			"source_id": "MISPGALAXY",
			"reports": null
		},
		{
			"id": "544ecd2c-82c9-417c-9d98-d1ae395df964",
			"created_at": "2025-10-29T02:00:52.035025Z",
			"updated_at": "2026-04-10T02:00:05.408558Z",
			"deleted_at": null,
			"main_name": "AppleJeus",
			"aliases": [
				"AppleJeus",
				"Gleaming Pisces",
				"Citrine Sleet",
				"UNC1720",
				"UNC4736"
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			"source_name": "MITRE:AppleJeus",
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			"source_id": "MITRE",
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			"updated_at": "2026-04-10T02:00:03.776007Z",
			"deleted_at": null,
			"main_name": "NICKEL GLADSTONE",
			"aliases": [
				"APT38 ",
				"ATK 117 ",
				"Alluring Pisces ",
				"Black Alicanto ",
				"Bluenoroff ",
				"CTG-6459 ",
				"Citrine Sleet ",
				"HIDDEN COBRA ",
				"Lazarus Group",
				"Sapphire Sleet ",
				"Selective Pisces ",
				"Stardust Chollima ",
				"T-APT-15 ",
				"TA444 ",
				"TAG-71 "
			],
			"source_name": "Secureworks:NICKEL GLADSTONE",
			"tools": [
				"AlphaNC",
				"Bankshot",
				"CCGC_Proxy",
				"Ratankba",
				"RustBucket",
				"SUGARLOADER",
				"SwiftLoader",
				"Wcry"
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			"source_id": "Secureworks",
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			"created_at": "2023-01-06T13:46:38.430595Z",
			"updated_at": "2026-04-10T02:00:02.971571Z",
			"deleted_at": null,
			"main_name": "Lazarus Group",
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				"Operation DarkSeoul",
				"Bureau 121",
				"Group 77",
				"APT38",
				"NICKEL GLADSTONE",
				"G0082",
				"COPERNICIUM",
				"Moonstone Sleet",
				"Operation GhostSecret",
				"APT 38",
				"Appleworm",
				"Unit 121",
				"ATK3",
				"G0032",
				"ATK117",
				"NewRomanic Cyber Army Team",
				"Nickel Academy",
				"Sapphire Sleet",
				"Lazarus group",
				"Hastati Group",
				"Subgroup: Bluenoroff",
				"Operation Troy",
				"Black Artemis",
				"Dark Seoul",
				"Andariel",
				"Labyrinth Chollima",
				"Operation AppleJeus",
				"COVELLITE",
				"Citrine Sleet",
				"DEV-0139",
				"DEV-1222",
				"Hidden Cobra",
				"Bluenoroff",
				"Stardust Chollima",
				"Whois Hacking Team",
				"Diamond Sleet",
				"TA404",
				"BeagleBoyz",
				"APT-C-26"
			],
			"source_name": "MISPGALAXY:Lazarus Group",
			"tools": [],
			"source_id": "MISPGALAXY",
			"reports": null
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			"id": "f32df445-9fb4-4234-99e0-3561f6498e4e",
			"created_at": "2022-10-25T16:07:23.756373Z",
			"updated_at": "2026-04-10T02:00:04.739611Z",
			"deleted_at": null,
			"main_name": "Lazarus Group",
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				"ATK 3",
				"Appleworm",
				"Citrine Sleet",
				"DEV-0139",
				"Diamond Sleet",
				"G0032",
				"Gleaming Pisces",
				"Gods Apostles",
				"Gods Disciples",
				"Group 77",
				"Guardians of Peace",
				"Hastati Group",
				"Hidden Cobra",
				"ITG03",
				"Jade Sleet",
				"Labyrinth Chollima",
				"Lazarus Group",
				"NewRomanic Cyber Army Team",
				"Operation 99",
				"Operation AppleJeus",
				"Operation AppleJeus sequel",
				"Operation Blockbuster: Breach of Sony Pictures Entertainment",
				"Operation CryptoCore",
				"Operation Dream Job",
				"Operation Dream Magic",
				"Operation Flame",
				"Operation GhostSecret",
				"Operation In(ter)caption",
				"Operation LolZarus",
				"Operation Marstech Mayhem",
				"Operation No Pineapple!",
				"Operation North Star",
				"Operation Phantom Circuit",
				"Operation Sharpshooter",
				"Operation SyncHole",
				"Operation Ten Days of Rain / DarkSeoul",
				"Operation Troy",
				"SectorA01",
				"Slow Pisces",
				"TA404",
				"TraderTraitor",
				"UNC2970",
				"UNC4034",
				"UNC4736",
				"UNC4899",
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				"Whois Hacking Team"
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				"3Rat Client",
				"3proxy",
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				"ARTFULPIE",
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				"AlphaNC",
				"Alreay",
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				"AngryRebel",
				"AppleJeus",
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				"Escad",
				"EternalBlue",
				"FALLCHILL",
				"FYNLOS",
				"FallChill RAT",
				"Farfli",
				"Fimlis",
				"FoggyBrass",
				"FudModule",
				"Fynloski",
				"Gh0st RAT",
				"Ghost RAT",
				"Gopuram",
				"HARDRAIN",
				"HIDDEN COBRA RAT/Worm",
				"HLOADER",
				"HOOKSHOT",
				"HOPLIGHT",
				"HOTCROISSANT",
				"HOTWAX",
				"HTTP Troy",
				"Hawup",
				"Hawup RAT",
				"Hermes",
				"HotCroissant",
				"HotelAlfa",
				"Hotwax",
				"HtDnDownLoader",
				"Http Dr0pper",
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				"Kaos",
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				"KillMBR",
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				"Mydoom",
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				"Novarg",
				"NukeSped",
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				"PowerRatankba",
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				"PowerSpritz",
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				"Preft",
				"ProcDump",
				"Proxysvc",
				"PuTTY Link",
				"QUICKRIDE",
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				"Quickcafe",
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				"SierraBravo",
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				"Tdrop",
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				"TigerRAT",
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				"Troy",
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				"VSingle",
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				"WanaCrypt",
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				"WannaCryptor",
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				"Win32/KillDisk.NBB",
				"Win32/KillDisk.NBC",
				"Win32/KillDisk.NBD",
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				"YamaBot",
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				"ZetaNile",
				"concealment_troy",
				"http_troy",
				"httpdr0pper",
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