Phobos | Niveau de menace: high | Type: Ransomware

Identifiants cryptographiques

SHA256b5475975e30be3c1ff6c97d148def1287dc3a0341d546198df85dbb66c1b6ffa
MD59f14040a8875531ea00aa6f5aa90f218
Type de fichierexe
Taille96.5 KB
Première observation2023-03-06
Nom du fichierFast.bin
ÉtiquettesPhobos

Famille de malware: Phobos

Phobos, RDP ransomware'dir.

TypeRansomware
Langage de programmationC++
Plateforme cibleWindows
Protocole C2
ObjectifRDP ransomware
Année de première observation2019
Autres nomsEking

Indicateurs de menace (IOC)

  • SHA256: b5475975e30be3c1ff6c97d148def1287dc3a0341d546198df85dbb66c1b6ffa
  • MD5: 9f14040a8875531ea00aa6f5aa90f218

Vous pouvez vérifier toutes les valeurs de hachage de cet échantillon sur VirusTotal.

Guide de nettoyage du système

  1. Sistemi ağdan DERHAL ayırın — diğer cihazlara yayılmayı durdurun
  2. Ne payez pas la rançon — rien ne garantit la récupération des fichiers
  3. Mettez en quarantaine les disques concernés
  4. Kullanılan fidye yazılımı ailesini belirleyin (nomoreransom.org)
  5. Essayez les outils de déchiffrement disponibles (projet NoMoreRansom)
  6. Signalez l’incident aux autorités (unité de cybercriminalité)
  7. Temiz bir yedekten kurtarın; yedeğiniz yoksa sürücüyü saklayın

Indices de règles YARA

rule Phobos_SHA256 {
    meta:
        description = "Phobos sample: b5475975e30be3c1"
        threat_level = "high"
        first_seen = "2023-03-06"
    condition:
        hash.sha256(0, filesize) == "b5475975e30be3c1ff6c97d148def1287dc3a0341d546198df85dbb66c1b6ffa"
}

Phobos — Profil du 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.

Type de malware
Ransomware
Langage de programmation
C++
Protocole C2
Systèmes ciblés
Windows
Aussi connu sous (AKA)
Eking

Détails techniques

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 / Acteur de la menace

WIZARD SPIDER (related lineage), Dharma/CrySis family

Capacités et comportement

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

Liste IOC (2 indicateurs)

IOC — Phobos
# SHA256 b5475975e30be3c1ff6c97d148def1287dc3a0341d546198df85dbb66c1b6ffa # MD5 9f14040a8875531ea00aa6f5aa90f218
TypeValeurNote
sha256 b5475975e30be3c1ff6c97d148def1287dc3a0341d546198df85dbb66c1b6ffa Sample:Phobos
md5 9f14040a8875531ea00aa6f5aa90f218 Sample:Phobos
Tags
phobosransomwaremalwarehighsha256hash-analizi