{ "id": "07c08d72-b85b-4481-a181-68fc7a90f035", "created_at": "2026-04-06T00:22:38.957083Z", "updated_at": "2026-04-10T03:37:36.730064Z", "deleted_at": null, "sha1_hash": "bb5c50293d96e06b23f0fb2f8911e94d097284be", "title": "Threat Group Cards: A Threat Actor Encyclopedia", "llm_title": "", "authors": "", "file_creation_date": "0001-01-01T00:00:00Z", "file_modification_date": "0001-01-01T00:00:00Z", "file_size": 68135, "plain_text": "Threat Group Cards: A Threat Actor Encyclopedia\r\nArchived: 2026-04-05 23:08:47 UTC\r\nHome \u003e List all groups \u003e List all tools \u003e List all groups using tool Karkoff\r\n Tool: Karkoff\r\nNames\r\nKarkoff\r\nMailDropper\r\nDropperBackdoor\r\nCACTUSPIPE\r\nOILYFACE\r\nCategory Malware\r\nType Backdoor, Dropper\r\nDescription\r\n(Talos) In April, Cisco Talos identified an undocumented malware developed in .NET. On\r\nthe analyzed samples, the malware author left two different internal names in plain text:\r\n'DropperBackdoor' and 'Karkoff.' We decided to use the second name as the malware's\r\nmoniker, as it is less generic. The malware is lightweight compared to other malware due\r\nto its small size and allows remote code execution from the C2 server. There is no\r\nobfuscation and the code can be easily disassembled.\r\nInformation \u003chttps://blog.talosintelligence.com/2019/04/dnspionage-brings-out-karkoff.html\u003e\r\nMalpedia \u003chttps://malpedia.caad.fkie.fraunhofer.de/details/win.karkoff\u003e\r\nAlienVault OTX \u003chttps://otx.alienvault.com/browse/pulses?q=tag:Karkoff\u003e\r\nLast change to this tool card: 30 November 2023\r\nDownload this tool card in JSON format\r\nAll groups using tool Karkoff\r\nChanged Name Country Observed\r\nAPT groups\r\n  DNSpionage 2019-Apr 2019  \r\nhttps://apt.etda.or.th/cgi-bin/listgroups.cgi?u=330eed05-5332-4314-a9ef-ebe891bc3153\r\nPage 1 of 2\n\nOilRig, APT 34, Helix Kitten, Chrysene 2014-Sep 2024\r\n2 groups listed (2 APT, 0 other, 0 unknown)\r\nSource: https://apt.etda.or.th/cgi-bin/listgroups.cgi?u=330eed05-5332-4314-a9ef-ebe891bc3153\r\nhttps://apt.etda.or.th/cgi-bin/listgroups.cgi?u=330eed05-5332-4314-a9ef-ebe891bc3153\r\nPage 2 of 2", "extraction_quality": 1, "language": "EN", "sources": [ "ETDA" ], "references": [ "https://apt.etda.or.th/cgi-bin/listgroups.cgi?u=330eed05-5332-4314-a9ef-ebe891bc3153" ], "report_names": [ "listgroups.cgi?u=330eed05-5332-4314-a9ef-ebe891bc3153" ], "threat_actors": [ { "id": "cffb3c01-038f-4527-9cfd-57ad5a035c22", "created_at": "2022-10-25T15:50:23.38055Z", "updated_at": "2026-04-10T02:00:05.258283Z", "deleted_at": null, "main_name": "OilRig", "aliases": [ "COBALT GYPSY", "IRN2", "APT34", "Helix Kitten", "Evasive Serpens", "Hazel Sandstorm", "EUROPIUM", "ITG13", "Earth Simnavaz", "Crambus", "TA452" ], "source_name": "MITRE:OilRig", "tools": [ "ISMInjector", "ODAgent", "RDAT", "Systeminfo", "QUADAGENT", "OopsIE", "ngrok", "Tasklist", "certutil", "ZeroCleare", "POWRUNER", "netstat", "Solar", "ipconfig", "LaZagne", "BONDUPDATER", "SideTwist", "OilBooster", "SampleCheck5000", "PsExec", "SEASHARPEE", "Mimikatz", "PowerExchange", "OilCheck", "RGDoor", "ftp" ], "source_id": "MITRE", "reports": null }, { "id": "8d76e350-dfb5-4733-800d-876de41f690d", "created_at": "2023-01-06T13:46:38.841887Z", "updated_at": "2026-04-10T02:00:03.119083Z", "deleted_at": null, "main_name": "DNSpionage", "aliases": [ "COBALT EDGEWATER" ], "source_name": "MISPGALAXY:DNSpionage", "tools": [], "source_id": "MISPGALAXY", "reports": null }, { "id": "25896473-161f-411f-b76a-f11bb26c96bd", "created_at": "2023-01-06T13:46:38.75749Z", "updated_at": "2026-04-10T02:00:03.090307Z", "deleted_at": null, "main_name": "CHRYSENE", "aliases": [ "Greenbug" ], "source_name": "MISPGALAXY:CHRYSENE", "tools": [], "source_id": "MISPGALAXY", "reports": null }, { "id": "4632103e-8035-4a83-9ecb-c1e12e21288c", "created_at": "2022-10-25T16:07:23.542255Z", "updated_at": "2026-04-10T02:00:04.64888Z", "deleted_at": null, "main_name": "DNSpionage", "aliases": [], "source_name": "ETDA:DNSpionage", "tools": [ "Agent Drable", "AgentDrable", "CACTUSPIPE", "DNSpionage", "DropperBackdoor", "Karkoff", "MailDropper", "OILYFACE" ], "source_id": "ETDA", "reports": null }, { "id": "67b2c161-5a04-4e3d-8ce7-cce457a4a17b", "created_at": "2025-08-07T02:03:24.722093Z", "updated_at": "2026-04-10T02:00:03.681914Z", "deleted_at": null, "main_name": "COBALT EDGEWATER", "aliases": [ "APT34 ", "Cold River ", "DNSpionage " ], "source_name": "Secureworks:COBALT EDGEWATER", "tools": [ "AgentDrable", "DNSpionage", "Karkoff", "MailDropper", "SideTwist", "TWOTONE" ], "source_id": "Secureworks", "reports": null }, { "id": "c786e025-c267-40bd-9491-328da70811a5", "created_at": "2025-08-07T02:03:24.736817Z", "updated_at": "2026-04-10T02:00:03.752071Z", "deleted_at": null, "main_name": "COBALT GYPSY", "aliases": [ "APT34 ", "CHRYSENE ", "Crambus ", "EUROPIUM ", "Hazel Sandstorm ", "Helix Kitten ", "ITG13 ", "OilRig ", "Yellow Maero " ], "source_name": "Secureworks:COBALT GYPSY", "tools": [ "Glimpse", "Helminth", "Jason", "MacDownloader", "PoisonFrog", "RGDoor", "ThreeDollars", "TinyZbot", "Toxocara", "Trichuris", "TwoFace" ], "source_id": "Secureworks", "reports": null }, { "id": "67709937-2186-4a32-b64c-a5693d40ac77", "created_at": "2023-01-06T13:46:38.495593Z", "updated_at": "2026-04-10T02:00:02.999196Z", "deleted_at": null, "main_name": "OilRig", "aliases": [ "Crambus", "Helix Kitten", "APT34", "IRN2", "ATK40", "G0049", "EUROPIUM", "TA452", "Twisted Kitten", "Cobalt Gypsy", "APT 34", "Evasive Serpens", "Hazel Sandstorm", "Earth Simnavaz" ], "source_name": "MISPGALAXY:OilRig", "tools": [], "source_id": "MISPGALAXY", "reports": null }, { "id": "b6436f7b-6012-4969-aed1-d440e2e8b238", "created_at": "2022-10-25T16:07:23.91517Z", "updated_at": "2026-04-10T02:00:04.788408Z", "deleted_at": null, "main_name": "OilRig", "aliases": [ "APT 34", "ATK 40", "Chrysene", "Cobalt Gypsy", "Crambus", "DEV-0861", "EUROPIUM", "Earth Simnavaz", "Evasive Serpens", "G0049", "Hazel Sandstorm", "Helix Kitten", "IRN2", "ITG13", "Scarred Manticore", "Storm-0861", "TA452", "Twisted Kitten", "UNC1860", "Yellow Maero" ], "source_name": "ETDA:OilRig", "tools": [ "AMATIAS", "Agent Drable", "Agent Injector", "AgentDrable", "Alma Communicator", "BONDUPDATER", "CACTUSPIPE", "Clayslide", "CypherRat", "DNSExfitrator", "DNSpionage", "DROPSHOT", "DistTrack", "DropperBackdoor", "Fox Panel", "GREYSTUFF", "GoogleDrive RAT", "HighShell", "HyperShell", "ISMAgent", "ISMDoor", "ISMInjector", "Jason", "Karkoff", "LIONTAIL", "LOLBAS", "LOLBins", "LONGWATCH", "LaZagne", "Living off the Land", "MailDropper", "Mimikatz", "MrPerfectInstaller", "OILYFACE", "OopsIE", "POWBAT", "POWRUNER", "Plink", "Poison Frog", "PowerExchange", "PsList", "PuTTY Link", "QUADAGENT", "RDAT", "RGDoor", "SEASHARPEE", "Saitama", "Saitama Backdoor", "Shamoon", "SideTwist", "SpyNote", "SpyNote RAT", "StoneDrill", "TONEDEAF", "TONEDEAF 2.0", "ThreeDollars", "TwoFace", "VALUEVAULT", "Webmask", "WinRAR", "ZEROCLEAR", "ZeroCleare", "certutil", "certutil.exe" ], "source_id": "ETDA", "reports": null } ], "ts_created_at": 1775434958, "ts_updated_at": 1775792256, "ts_creation_date": 0, "ts_modification_date": 0, "files": { "pdf": "https://archive.orkl.eu/bb5c50293d96e06b23f0fb2f8911e94d097284be.pdf", "text": "https://archive.orkl.eu/bb5c50293d96e06b23f0fb2f8911e94d097284be.txt", "img": "https://archive.orkl.eu/bb5c50293d96e06b23f0fb2f8911e94d097284be.jpg" } }