Phobos | Nivel de amenaza: high | Tipo: Ransomware

Identificadores criptográficos

SHA256fd59543a425d2159dfadba8efd4d40178b609ef123a8bc5cf00fe3afef95623d
MD54db1b428d0e115a810836f937d786f38
Tipo de archivoexe
Tamaño285.0 KB
Primera detección2023-10-18
Nombre de archivoSecuriteInfo.com.Trojan.Packed2.45812.22266.8634
Etiquetasexe, Phobos

Familia de malware: Phobos

Phobos, RDP açıkları kullanan ransomware'dir.

TipoRansomware
Lenguaje de programaciónC++
Plataforma objetivoWindows
Protocolo C2
PropósitoRDP tabanlı ransomware
Año de primera detección2019
Otros nombresEking

Indicadores de amenaza (IOC)

  • SHA256: fd59543a425d2159dfadba8efd4d40178b609ef123a8bc5cf00fe3afef95623d
  • MD5: 4db1b428d0e115a810836f937d786f38

Guía de limpieza del sistema

  1. Sistemi ağdan DERHAL ayırın — diğer cihazlara yayılmayı durdurun
  2. No pague el rescate: no hay garantía de recuperar los archivos
  3. Ponga en cuarentena las unidades afectadas
  4. Kullanılan fidye yazılımı ailesini belirleyin (nomoreransom.org)
  5. Pruebe las herramientas de descifrado disponibles (proyecto NoMoreRansom)
  6. Yetkililere ihbarda bulunun
  7. Temiz bir yedekten kurtarın

Sugerencias de reglas YARA

rule Phobos_SHA256 {
    meta:
        description = "Phobos sample: fd59543a425d2159"
        threat_level = "high"
        first_seen = "2023-10-18"
    condition:
        hash.sha256(0, filesize) == "fd59543a425d2159dfadba8efd4d40178b609ef123a8bc5cf00fe3afef95623d"
}

Phobos — Perfil del malware

Phobos, 2019 dan beri aktif Dharma kaynakli ransomware ailesidir. AES-256 + RSA-1024 hibrit sifreleme, email bazli fidye iletisimi. RDP brute force ile yayilir. C2 yok.

Tipo de malware
Ransomware
Lenguaje de programación
C++
Protocolo C2
Sistemas objetivo
Windows
También conocido como (AKA)
Eking

Detalles técnicos

Phobos ransomware emerged in December 2018 as a derivative of Dharma/CrySis ransomware. Encrypts files using AES-256 with RSA-1024 key exchange. Files are renamed with victim ID, attacker email address, and .phobos extension. Distributed primarily through RDP brute force attacks. Deletes volume shadow copies via vssadmin, disables Windows recovery, and terminates backup processes. Adds persistence via HKCU\Software\Microsoft\Windows\CurrentVersion\Run registry key and Startup folder. Contact is exclusively via email embedded in ransom note (no web portal). Variant of Dharma that emerged after its source code leaked on underground forums.

Atribución / Actor de amenaza

WIZARD SPIDER (related lineage), Dharma/CrySis family

Capacidades y comportamiento

Dosya Şifreleme (AES/RSA)
Gölge Kopya Silme
Yedek Kaldırma
Fidye Notu Oluşturma
Kalıcılık Sağlama
Ağ Paylaşımı Şifreleme
Anti-Analiz Teknikleri
Çift Gasp (Data Leak)

Lista IOC (2 indicadores)

IOC — Phobos
# SHA256 fd59543a425d2159dfadba8efd4d40178b609ef123a8bc5cf00fe3afef95623d # MD5 4db1b428d0e115a810836f937d786f38
TipoValorNota
sha256 fd59543a425d2159dfadba8efd4d40178b609ef123a8bc5cf00fe3afef95623d
md5 4db1b428d0e115a810836f937d786f38
Etiquetas
phobosransomwaremalwarehighsha256analizzenginleştirilmiş