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

Manuel Statik Analiz — SmokeLoader | Tehdit: YUKSEK

Datei Kimliği

SHA256	`f2b41e3f4d713157520136b3c5a4f7d0e2b6c9f1a3d6e8b1c4f7a0d3e6b9c2`
Dateiname	autoruns.exe (Sysinternals Autoruns taklit!)
Größe	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 — Malware-Profil

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

Malware-Typ

Loader

Programmiersprache

C2-Protokoll

HTTP

Zielsysteme

Windows

Auch bekannt als (AKA)

Dofoil

Technische Details

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 / Bedrohungsakteur

Unknown (sold on underground forums, multiple operators)

Fähigkeiten & Verhalten

Payload İndirme

Süreç Enjeksiyonu

Modüler Mimari

Kimlik Bilgisi Hırsızlığı

Yanal Hareket

Kalıcılık

Anti-VM/Sandbox

İkincil Payload Dağıtımı

IOC-Liste (1 Indikatoren)

IOC — SmokeLoader

# DOMAIN
sysinternals.com

Typ	Wert	Bemerkung
domain	sysinternals.com

SmokeLoader — Zum vollständigen Profil →

C2-Server (5 erfasste Server für diese Familie)

Adresse	Typ	Port	Protokoll	Status	Land
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	—

C2-Adressen stammen ausschließlich aus vom KEYDAL-Team manuell verifizierten Malware-Samples. Kommerzielle Nutzung ist untersagt.