SmokeLoader — triage_dropped_file [b961d679]

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 (2 indicadores)

IOC — SmokeLoader Copiar

# SHA256 b961d6795d7ceb3ea3cd00e037460958776a39747c8f03783d458b38daec8025 # MD5 0a69bc7b3a634baf734a0dd5469034b1

Tipo	Valor	Nota
sha256	b961d6795d7ceb3ea3cd00e037460958776a39747c8f03783d458b38daec8025
md5	0a69bc7b3a634baf734a0dd5469034b1

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.