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

Manuel Statik Analiz — SmokeLoader | Tehdit: YUKSEK

Dosya Kimliği

SHA256	`f2b41e3f4d713157520136b3c5a4f7d0e2b6c9f1a3d6e8b1c4f7a0d3e6b9c2`
Dosya Adı	autoruns.exe (Sysinternals Autoruns taklit!)
Boyut	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 Profile

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

Malware Type

Loader

Programming Language

C2 Protocol

HTTP

Target Systems

Windows

Also Known As (AKA)

Dofoil

Technical 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 / Threat Actor

Unknown (sold on underground forums, multiple operators)

Capabilities & Behavior

Payload İndirme

Süreç Enjeksiyonu

Modüler Mimari

Kimlik Bilgisi Hırsızlığı

Yanal Hareket

Kalıcılık

Anti-VM/Sandbox

İkincil Payload Dağıtımı

IOC List (1 indicators)

IOC — SmokeLoader

# DOMAIN
sysinternals.com

Type	Value	Note
domain	sysinternals.com

SmokeLoader — Go to Full Profile →

C2 Servers (5 recorded servers for this family)

Address	Type	Port	Protocol	Status	Country
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 addresses are provided only from malware samples manually verified by the KEYDAL team. Commercial use is prohibited.