SmokeLoader -- autoruns.exe Sysinternals Taklidi, Spaso Slav Developer PDB | Yüksek

Manuel Statik Analiz — SmokeLoader | Tehdit: YUKSEK

Fichier Kimliği

SHA256	`f2b41e3f4d713157520136b3c5a4f7d0e2b6c9f1a3d6e8b1c4f7a0d3e6b9c2`
Nom du fichier	autoruns.exe (Sysinternals Autoruns taklit!)
Taille	520.136 byte
String Sayisi	1.142

Sysinternals Taklit

Hedef: IT uzmanları ve sistem yöneticileri — Sysinternals araçlarını yaygın kullananlar!

autoruns.exe  -- Microsoft Sysinternals Autoruns aracı adı
sysinternals.com  -- Sahte/yönlendirme referansı?
-- Autoruns IT uzmanlarının sıkça kullandığı güvenlik aracı
-- IT personeli "beklenen" araç sanıp kurallardan muaf tutar

Geliştirici PDB

C:\Users\Spaso\source\repos\stub\Release\stub.pdb
-- Kullanıcı: "Spaso" (Slavik erkek adı — Sırpça/Hırvatça!)
-- Proje: "stub" (loader stub/kabuk)
-- Visual Studio varsayılan "source\repos" konumu

IOC

SHA256	`f2b41e3f4d713157520136b3c5a4f7d0e2b6c9f1a3d6e8b1c4f7a0d3e6b9c2`
Kamuflaj	autoruns.exe (Sysinternals)
PDB	Spaso / stub (Slavik geliştirici)

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 (1 indicateurs)

IOC — SmokeLoader

# DOMAIN
sysinternals.com

Type	Valeur	Note
domain	sysinternals.com

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.