SmokeLoader — CoVid_2019_Check_A4372.doc [0da1163a]

Tehdit Valorlendirmesi

Bu ornek, hedef sisteme ek zararlı yazılım yuklemek amacıyla tasarlanmis moduler bir yukleyici (loader) olarak tespit edilmistir. Bankacılık trojanları, fidye yazılımları veya diger ikinci asama yukler indirebilmektedir.

Capacidades detectadas

• Payload Indirme
• Surec Enjeksiyonu
• Kalicilik
• Anti-Analiz
• Sifrelenmis Iletisim

Etiquetas de MalwareBazaar

Nota de análisis

Bu ornek SmokeLoader ailesine ait ve MalwareBazaar platformundan alınmıstır. KEYDAL Guvenlik Arastirmaları tarafından metadata analizi gerceklestirilmis ve IOC veritabanına eklenmistir.

SmokeLoader — Perfil del malware

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

Tipo de malware

Loader

Lenguaje de programación

C

Protocolo C2

HTTP

Sistemas objetivo

Windows

También conocido como (AKA)

Dofoil

Detalles técnicos

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.

Atribución / Actor de amenaza

Unknown (sold on underground forums, multiple operators)

Capacidades y comportamiento

Payload İndirme

Süreç Enjeksiyonu

Modüler Mimari

Kimlik Bilgisi Hırsızlığı

Yanal Hareket

Kalıcılık

Anti-VM/Sandbox

İkincil Payload Dağıtımı

Lista IOC (5 indicadores)

IOC — SmokeLoader Copiar

# SHA256 0da1163a00143901f52c50317fe036c83efca8680d1e1d5702a0118a10b35d7d # MD5 6f1f70d8b7d62a7b8dce59ebf077f429 # IP 185.173.35.16 # IP 91.243.44.247 # URL https://smokeloader-panel.ru/bot/

Tipo	Valor	Nota
sha256	0da1163a00143901f52c50317fe036c83efca8680d1e1d5702a0118a10b35d7d
md5	6f1f70d8b7d62a7b8dce59ebf077f429
ip	185.173.35.16	C2:8080
ip	91.243.44.247	C2:8888
url	https://smokeloader-panel.ru/bot/	SmokeLoader bot C2 endpoint

Servidores C2 (5 servidores registrados para esta familia)

Dirección	Tipo	Puerto	Protocolo	Estado	País
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	—

Las direcciones C2 se proporcionan únicamente a partir de muestras de malware verificadas manualmente por el equipo KEYDAL. Se prohíbe el uso comercial.