Phobos | Niveau de menace: high | Type: Ransomware

Identifiants cryptographiques

SHA25681a5ac22ffef8e50131f663708e5f579e1d74c0464994a909cd3426be6887a4a
MD57378712fa2b8cfa0b87ef80ca12e3ebd
Type de fichierexe
Taille55.5 KB
Première observation2022-10-11
Nom du fichier81a5ac22ffef8e50131f663708e5f579e1d74c0464994a909cd3426be6887a4a
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: 81a5ac22ffef8e50131f663708e5f579e1d74c0464994a909cd3426be6887a4a
  • MD5: 7378712fa2b8cfa0b87ef80ca12e3ebd

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: 81a5ac22ffef8e50"
        threat_level = "high"
        first_seen = "2022-10-11"
    condition:
        hash.sha256(0, filesize) == "81a5ac22ffef8e50131f663708e5f579e1d74c0464994a909cd3426be6887a4a"
}

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 81a5ac22ffef8e50131f663708e5f579e1d74c0464994a909cd3426be6887a4a # MD5 7378712fa2b8cfa0b87ef80ca12e3ebd
TypeValeurNote
sha256 81a5ac22ffef8e50131f663708e5f579e1d74c0464994a909cd3426be6887a4a Sample:Phobos
md5 7378712fa2b8cfa0b87ef80ca12e3ebd Sample:Phobos
Tags
phobosransomwaremalwarehighsha256hash-analizi