| ハッシュ / 情報 | 値 |
|---|---|
| SHA256 | 327da452b8c86ed8910056646771de8fb92a928c3d135efb2d41e6cb26806382 |
| MD5 | 42513d9fbd45e442f8f499a7bb5746a2 |
| SHA1 | 22125167e6a660a458101110d493ef1e4f7173b9 |
| ImpHash | 9ce648a01015a6754959ff9990c7e2fa |
| ファイル Adi | Report-Review22-10.exe |
| ファイル種別 | exe |
| サイズ | 8,066,816 bytes |
| 初回確認 | 2020-10-22 |
Tehdit 値lendirmesi
Bu ornek, kurban sistemindeki dosyaları sifreleyerek erisimi engelleyen ve sifre cozme anahtarı karsılıgında fidye talep eden bir fidye yazılımı olarak analiz edilmistir.
検出された機能
- ファイル Sifreleme
- Golge Kopya Silme
- Fidye Notu
- Yedek Yok Etme
- Veri Sizdirma
MalwareBazaar タグ
解析メモ
Bu ornek Ryuk ailesine ait ve MalwareBazaar platformundan alınmıstır. KEYDAL Guvenlik Arastirmaları tarafından metadata analizi gerceklestirilmis ve IOC veritabanına eklenmistir.
Ryuk — マルウェアプロファイル
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.
技術詳細
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.
アトリビューション / 脅威アクター
WIZARD SPIDER (linked to Hermes/Lazarus initial code)
機能と挙動
IOCリスト (2 件の指標)
# SHA256
327da452b8c86ed8910056646771de8fb92a928c3d135efb2d41e6cb26806382
# MD5
42513d9fbd45e442f8f499a7bb5746a2
| タイプ | 値 | メモ |
|---|---|---|
| sha256 | 327da452b8c86ed8910056646771de8fb92a928c3d135efb2d41e6cb26806382 | |
| md5 | 42513d9fbd45e442f8f499a7bb5746a2 |
C2サーバー (このファミリーで2台のサーバーを記録)
| アドレス | タイプ | ポート | プロトコル | ステータス | 国 |
|---|---|---|---|---|---|
| 51.161.204.106 | ip | 443 | HTTPS | sinkholed | CA |
| 162.119.249.198 | ip | 443 | HTTPS | sinkholed | US |
C2アドレスはKEYDALチームが手動で検証したマルウェア検体のみに基づいて提供されています。商用利用は禁止です。