SmokeLoader — Örnek SHA256: 51f10ba0 | High Tehdit Analizi

SmokeLoader | Tehdit Seviyesi: high | Tür: Loader

Kriptografik Tanımlayıcılar

SHA256	`51f10ba0c6bdf7f47db635fb0c74be0ab9d9c41e552a7bf085419fe312423c1d`
MD5	`9e0c6791f6173fb87e16096e3494add0`
Dosya Türü	exe
Boyut	2469.8 KB
İlk Görülme	2025-09-10
Dosya Adı	⇶?️ ?????.exe
Etiketler	exe, signed, SmokeLoader

Malware Ailesi: SmokeLoader

SmokeLoader, modüler loader/botnet'tir.

Tür	Loader
Programlama Dili	C
Hedef Platform	Windows
C2 Protokolü	HTTP
Amaç	Ek yük indiren botnet
İlk Görülen Yıl	2011
Diğer İsimler	Dofoil

Tehdit Göstergeleri (IOC)

SHA256: 51f10ba0c6bdf7f47db635fb0c74be0ab9d9c41e552a7bf085419fe312423c1d
MD5: 9e0c6791f6173fb87e16096e3494add0

Bu örneğin tüm hash değerlerini VirusTotal üzerinde doğrulayabilirsiniz.

Sistem Temizleme Rehberi

Sistemi ağdan ayırın — Loader başka zararlı yazılım indiriyor olabilir
İndirilen tüm payload'ları analiz edin
Tüm ağ trafiğini inceleyin, şüpheli bağlantıları kesin
Antivirüs ile tam tarama yapın
Sistem yenileme düşünün

YARA Kuralı İpuçları

rule SmokeLoader_SHA256 {
    meta:
        description = "SmokeLoader sample: 51f10ba0c6bdf7f4"
        threat_level = "high"
        first_seen = "2025-09-10"
    condition:
        hash.sha256(0, filesize) == "51f10ba0c6bdf7f47db635fb0c74be0ab9d9c41e552a7bf085419fe312423c1d"
}

SmokeLoader — Profil du malware

SmokeLoader. autoruns.exe Sysinternals version info spoofing. Spaso developer PDB username. stub.pdb loader project artifact.

Type de malware

Loader

Langage de programmation

Protocole C2

HTTP

Systèmes ciblés

Windows

Aussi connu sous (AKA)

Dofoil

Détails techniques

SmokeLoader (Dofoil/Smoke Bot) is a modular loader/downloader active since 2011. Primary function: download and execute additional payloads (Emotet, TrickBot, FormBook, Ursnif). Heavy obfuscation: string encryption (RC4+XOR), process injection via APC, code injection. Heaven's Gate technique: switches from 32-bit to 64-bit mode to evade WoW64 hooks. Anti-analysis: CPUID-based VM detection, process listing for analysis tools, timing checks. Uses process hollowing to inject into explorer.exe or svchost.exe. C2 communication: RC4-encrypted HTTP POST requests with bot ID, campaign ID. Sold as pay-per-install (PPI) service on underground forums (~$400/1000 installs). Frequently updated to bypass detection, >100 variants documented.

Attribution / Acteur de la menace

Unknown (sold on underground forums, multiple operators)

Capacités et comportement

Payload İndirme

Süreç Enjeksiyonu

Modüler Mimari

Kimlik Bilgisi Hırsızlığı

Yanal Hareket

Kalıcılık

Anti-VM/Sandbox

İkincil Payload Dağıtımı

Liste IOC (2 indicateurs)

IOC — SmokeLoader

# SHA256
51f10ba0c6bdf7f47db635fb0c74be0ab9d9c41e552a7bf085419fe312423c1d 

# MD5
9e0c6791f6173fb87e16096e3494add0

Type	Valeur	Note
sha256	51f10ba0c6bdf7f47db635fb0c74be0ab9d9c41e552a7bf085419fe312423c1d	Sample:SmokeLoader
md5	9e0c6791f6173fb87e16096e3494add0	Sample:SmokeLoader

SmokeLoader — Voir le profil complet →

Serveurs C2 (5 serveurs enregistrés pour cette famille)

Adresse	Type	Port	Protocole	Statut	Pays
80.66.75.36	ip	80	HTTP	inactive	RU
148.72.171.175	ip	80	HTTP	inactive	US
91.243.44.247	ip	8888	HTTP	inactive	RU
185.173.35.16	ip	8080	HTTP	inactive	RU
torcavpcs1.atitech.com	domain	443	TCP	inactive	—

Les adresses C2 proviennent uniquement d'échantillons de malwares vérifiés manuellement par l'équipe KEYDAL. Toute utilisation commerciale est interdite.