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Início / Grupos de ameaça / Ember Bear

Ember Bear G1003

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Também conhecido como: UNC2589, Bleeding Bear, DEV-0586, Cadet Blizzard, Frozenvista, UAC-0056

Atualizado na fonte em 31/07/2026 · Ver no MITRE ATT&CK

2
CVEs associadas
54
Técnicas
11
Malwares e ferramentas

Ember Bear is a Russian state-sponsored cyber espionage group that has been active since at least 2020, linked to Russia's General Staff Main Intelligence Directorate (GRU) 161st Specialist Training Center (Unit 29155). Ember Bear has primarily focused operations against Ukrainian government and telecommunication entities, but has also operated against critical infrastructure entities in Europe and the Americas. Ember Bear conducted the WhisperGate destructive wiper attacks against Ukraine in early 2022. There is some confusion as to whether Ember Bear overlaps with another Russian-linked entity referred to as Saint Bear. At present available evidence strongly suggests these are distinct activities with different behavioral profiles.

Vulnerabilidades exploradas

CVEs citadas pelo MITRE ATT&CK para este grupo, com o trecho da fonte. Fichas ainda não publicadas aqui aparecem sem link.

CVE-2022-41040 Alta · 8.8 KEV Ransomware Microsoft Exchange Server Server-Side Request Forgery Vulnerability
“Examples include exploitation of CVE-2021-26084 in Confluence servers; CVE-2022-41040, ProxyShell, and other vulnerabilities in Microsoft Exchange; and multiple vulnerabilities in open-source platforms such as content management systems.”
CVE-2021-26084 Crítica · 9.8 KEV Ransomware Atlassian Confluence Server and Data Center Object-Graph Navigation Language (OGNL) Injection Vulnerability
“Examples include exploitation of CVE-2021-26084 in Confluence servers; CVE-2022-41040, ProxyShell, and other vulnerabilities in Microsoft Exchange; and multiple vulnerabilities in open-source platforms such as content management systems.”

Técnicas por tática

Reconhecimento
T1595.001 Scanning IP BlocksT1595.002 Vulnerability Scanning
Desenvolvimento de recursos
T1583 Acquire InfrastructureT1583.003 Virtual Private ServerT1585 Establish AccountsT1588.001 MalwareT1588.005 Exploits
Acesso inicial
T1078.001 Default AccountsT1133 External Remote ServicesT1190 Exploit Public-Facing ApplicationT1195 Supply Chain Compromise
Execução
T1047 Windows Management InstrumentationT1053.005 Scheduled TaskT1059.001 PowerShellT1203 Exploitation for Client Execution
Persistência
T1053.005 Scheduled TaskT1078.001 Default AccountsT1112 Modify RegistryT1133 External Remote ServicesT1505.003 Web Shell
Escalada de privilégios
T1053.005 Scheduled TaskT1078.001 Default Accounts
Furtividade
T1036 MasqueradingT1036.005 Match Legitimate Resource Name or LocationT1070.004 File DeletionT1078.001 Default Accounts
Comprometimento de defesas
T1112 Modify Registry
Acesso a credenciais
T1003 OS Credential DumpingT1003.001 LSASS MemoryT1003.002 Security Account ManagerT1003.004 LSA SecretsT1110 Brute ForceT1110.003 Password SprayingT1552.001 Credentials In Files
Descoberta
T1018 Remote System DiscoveryT1046 Network Service DiscoveryT1654 Log Enumeration
Movimento lateral
T1021 Remote ServicesT1210 Exploitation of Remote ServicesT1550.002 Pass the HashT1570 Lateral Tool Transfer
Coleta
T1005 Data from Local SystemT1114 Email CollectionT1119 Automated CollectionT1125 Video CaptureT1560 Archive Collected Data
Comando e controle
T1071.004 DNST1090.003 Multi-hop ProxyT1095 Non-Application Layer ProtocolT1571 Non-Standard PortT1572 Protocol Tunneling
Exfiltração
T1567.002 Exfiltration to Cloud Storage
Impacto
T1491.002 External DefacementT1561.002 Disk Structure Wipe

Malwares e ferramentas

© The MITRE Corporation. Conteúdo do ATT&CK® reproduzido e distribuído com permissão da MITRE Corporation. Descrições em inglês, como na fonte.