| Hash / Info | Wert |
|---|---|
| SHA256 | 327da452b8c86ed8910056646771de8fb92a928c3d135efb2d41e6cb26806382 |
| MD5 | 42513d9fbd45e442f8f499a7bb5746a2 |
| SHA1 | 22125167e6a660a458101110d493ef1e4f7173b9 |
| ImpHash | 9ce648a01015a6754959ff9990c7e2fa |
| Datei Adi | Report-Review22-10.exe |
| Dateityp | exe |
| Größe | 8,066,816 bytes |
| Erstsichtung | 2020-10-22 |
Tehdit Wertlendirmesi
Bu ornek, kurban sistemindeki dosyaları sifreleyerek erisimi engelleyen ve sifre cozme anahtarı karsılıgında fidye talep eden bir fidye yazılımı olarak analiz edilmistir.
Erkannte Fähigkeiten
- Datei Sifreleme
- Golge Kopya Silme
- Fidye Notu
- Yedek Yok Etme
- Veri Sizdirma
MalwareBazaar-Tags
Analysehinweis
Bu ornek Ryuk ailesine ait ve MalwareBazaar platformundan alınmıstır. KEYDAL Guvenlik Arastirmaları tarafından metadata analizi gerceklestirilmis ve IOC veritabanına eklenmistir.
Ryuk — Malware-Profil
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.
Technische Details
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.
Attribution / Bedrohungsakteur
WIZARD SPIDER (linked to Hermes/Lazarus initial code)
Fähigkeiten & Verhalten
IOC-Liste (2 Indikatoren)
# SHA256
327da452b8c86ed8910056646771de8fb92a928c3d135efb2d41e6cb26806382
# MD5
42513d9fbd45e442f8f499a7bb5746a2
| Typ | Wert | Bemerkung |
|---|---|---|
| sha256 | 327da452b8c86ed8910056646771de8fb92a928c3d135efb2d41e6cb26806382 | |
| md5 | 42513d9fbd45e442f8f499a7bb5746a2 |
C2-Server (2 erfasste Server für diese Familie)
| Adresse | Typ | Port | Protokoll | Status | Land |
|---|---|---|---|---|---|
| 51.161.204.106 | ip | 443 | HTTPS | sinkholed | CA |
| 162.119.249.198 | ip | 443 | HTTPS | sinkholed | US |
C2-Adressen stammen ausschließlich aus vom KEYDAL-Team manuell verifizierten Malware-Samples. Kommerzielle Nutzung ist untersagt.