Phobos | Bedrohungsstufe: high | Typ: Ransomware

Kryptografische Kennungen

SHA2564dc707571955edf182d6d358fbaf81bdcdea59c790d09eb9a2567ccf53a3245c
MD556a7d493f9d2263cab57b392a7997869
Dateitypdoc
Größe242.4 KB
Erstsichtung2020-09-11
Dateiname56a7d493f9d2263cab57b392a7997869.doc
Tagsdoc, Loader, Phobos

Malware-Familie: Phobos

Phobos, RDP açıkları kullanan ransomware'dir.

TypRansomware
ProgrammierspracheC++
ZielplattformWindows
C2-Protokoll
ZweckRDP tabanlı ransomware
Jahr der Erstsichtung2019
Andere NamenEking

Bedrohungsindikatoren (IOC)

  • SHA256: 4dc707571955edf182d6d358fbaf81bdcdea59c790d09eb9a2567ccf53a3245c
  • MD5: 56a7d493f9d2263cab57b392a7997869

Anleitung zur Systembereinigung

  1. Sistemi ağdan DERHAL ayırın — diğer cihazlara yayılmayı durdurun
  2. Zahlen Sie kein Lösegeld — es gibt keine Garantie für die Wiederherstellung
  3. Stellen Sie die betroffenen Laufwerke unter Quarantäne
  4. Kullanılan fidye yazılımı ailesini belirleyin (nomoreransom.org)
  5. Probieren Sie verfügbare Entschlüsselungstools (Projekt NoMoreRansom)
  6. Yetkililere ihbarda bulunun
  7. Temiz bir yedekten kurtarın

Hinweise für YARA-Regeln

rule Phobos_SHA256 {
    meta:
        description = "Phobos sample: 4dc707571955edf1"
        threat_level = "high"
        first_seen = "2020-09-11"
    condition:
        hash.sha256(0, filesize) == "4dc707571955edf182d6d358fbaf81bdcdea59c790d09eb9a2567ccf53a3245c"
}

Phobos — Malware-Profil

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.

Malware-Typ
Ransomware
Programmiersprache
C++
C2-Protokoll
Zielsysteme
Windows
Auch bekannt als (AKA)
Eking

Technische Details

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.

Attribution / Bedrohungsakteur

WIZARD SPIDER (related lineage), Dharma/CrySis family

Fähigkeiten & Verhalten

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

IOC-Liste (2 Indikatoren)

IOC — Phobos
# SHA256 4dc707571955edf182d6d358fbaf81bdcdea59c790d09eb9a2567ccf53a3245c # MD5 56a7d493f9d2263cab57b392a7997869
TypWertBemerkung
sha256 4dc707571955edf182d6d358fbaf81bdcdea59c790d09eb9a2567ccf53a3245c
md5 56a7d493f9d2263cab57b392a7997869
Tags
phobosransomwaremalwarehighsha256analizzenginleştirilmiş