| Hash / Información | Valor |
|---|---|
| SHA256 | 92f124ea5217f3fe5cbab1c37a961df0437d5a9cbde1af268c60c4b3194b80ed |
| MD5 | 1737388ce8b0b5fc2dbc22f5b7352b7c |
| SHA1 | e62135254b3a51f0180e70a11e4c3ad4a59f81c4 |
| ImpHash | e5b44ef262abbb9d728bbe03f8aa847e |
| Archivo Adi | 92f124ea5217f3fe5cbab1c37a961df0437d5a9cbde1af268c60c4b3194b80ed.bin |
| Tipo de archivo | exe |
| Tamaño | 361,536 bytes |
| Primera detección | 2020-10-27 |
Tehdit Valorlendirmesi
Bu ornek, kurban sistemindeki dosyaları sifreleyerek erisimi engelleyen ve sifre cozme anahtarı karsılıgında fidye talep eden bir fidye yazılımı olarak analiz edilmistir.
Capacidades detectadas
- Archivo Sifreleme
- Golge Kopya Silme
- Fidye Notu
- Yedek Yok Etme
- Veri Sizdirma
Etiquetas de MalwareBazaar
Nota de análisis
Bu ornek Ryuk ailesine ait ve MalwareBazaar platformundan alınmıstır. KEYDAL Guvenlik Arastirmaları tarafından metadata analizi gerceklestirilmis ve IOC veritabanına eklenmistir.
Ryuk — Perfil del malware
Wizard Spider threat group ransomware (2018+). Targets large enterprises, hospitals, municipalities. RyukReadMe.html ransom note. VirtualAllocEx+WriteProcessMemory+CreateRemoteThread injection. GetIpNetTable ARP scan for lateral movement. AdjustTokenPrivileges for SeBackupPrivilege/SeDebugPrivilege.
Detalles técnicos
Ryuk ransomware emerged August 2018, operated by WIZARD SPIDER (TrickBot operators). Targeted large organizations for high ransoms ($100K-$12.5M+ per victim). Distribution: delivered via TrickBot/BazarLoader infections (human-operated). Encryption: RSA-2048 + AES-256 (CBC mode), unique key per file. Stops 40+ Windows services (backup, antivirus, database) and kills >180 processes. Deletes volume shadow copies (vssadmin delete shadows /all /Quiet). Disables Windows recovery: bcdedit /set {default} recoveryenabled No. Network propagation: uses Wake-on-LAN to activate sleeping network hosts for encryption. Believed based on Hermes ransomware sold by a North Korean-linked actor on underground forums. Predecessor to Conti ransomware which emerged from WIZARD SPIDER's operations in 2020.
Atribución / Actor de amenaza
WIZARD SPIDER (linked to Hermes/Lazarus initial code)
Capacidades y comportamiento
Lista IOC (2 indicadores)
# SHA256
92f124ea5217f3fe5cbab1c37a961df0437d5a9cbde1af268c60c4b3194b80ed
# MD5
1737388ce8b0b5fc2dbc22f5b7352b7c
| Tipo | Valor | Nota |
|---|---|---|
| sha256 | 92f124ea5217f3fe5cbab1c37a961df0437d5a9cbde1af268c60c4b3194b80ed | |
| md5 | 1737388ce8b0b5fc2dbc22f5b7352b7c |
Servidores C2 (2 servidores registrados para esta familia)
| Dirección | Tipo | Puerto | Protocolo | Estado | País |
|---|---|---|---|---|---|
| 51.161.204.106 | ip | 443 | HTTPS | sinkholed | CA |
| 162.119.249.198 | ip | 443 | HTTPS | sinkholed | US |
Las direcciones C2 se proporcionan únicamente a partir de muestras de malware verificadas manualmente por el equipo KEYDAL. Se prohíbe el uso comercial.