Phobos | Nivel de amenaza: high | Tipo: Ransomware

Identificadores criptográficos

SHA2567949bf3e09366bdb23ca7472cb6c4d9183ad5b081ac5a568d556aec8beae0785
MD5636a3d5759907f7a3261beac3f75ca6a
Tipo de archivoexe
Tamaño57.0 KB
Primera detección2020-04-05
Nombre de archivoc597eb1cfd24dfca1b17b7fd61c4527c.exe
Etiquetasexe, GuLoader, 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: 7949bf3e09366bdb23ca7472cb6c4d9183ad5b081ac5a568d556aec8beae0785
  • MD5: 636a3d5759907f7a3261beac3f75ca6a

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: 7949bf3e09366bdb"
        threat_level = "high"
        first_seen = "2020-04-05"
    condition:
        hash.sha256(0, filesize) == "7949bf3e09366bdb23ca7472cb6c4d9183ad5b081ac5a568d556aec8beae0785"
}

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 7949bf3e09366bdb23ca7472cb6c4d9183ad5b081ac5a568d556aec8beae0785 # MD5 636a3d5759907f7a3261beac3f75ca6a
TipoValorNota
sha256 7949bf3e09366bdb23ca7472cb6c4d9183ad5b081ac5a568d556aec8beae0785
md5 636a3d5759907f7a3261beac3f75ca6a
Etiquetas
phobosransomwaremalwarehighsha256analizzenginleştirilmiş