SmokeLoader Análisis de malware

Propiedades del archivo

SHA256: 4ea78a76cc5d9246cef41b1f969023406069c176ccd85b756b81a2ff333e7de3

MD5: 6d5250018e4c33352438f9f8db42c992

Tipo de archivo: exe

Tamaño: 210,944 byte

Primera detección: 2022-09-09

Firma AV: NetSupport

Imphash: 5f01abba712e2454333b4e9c03c9ed2c

Reportado por: abuse_ch

Etiquetas: exe, NetSupport, SmokeLoader

Análisis estático: basado en metadatos (muestra no descargada)

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 (1 indicadores)

IOC — SmokeLoader
# FILEPATH 4ea78a76cc5d9246cef41b1f969023406069c176ccd85b756b81a2ff333e7de3
TipoValorNota
filepath 4ea78a76cc5d9246cef41b1f969023406069c176ccd85b756b81a2ff333e7de3 PDB

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.

Etiquetas
exeNetSupportSmokeLoader