SmokeLoader Análisis de malware
Propiedades del archivo
SHA256: b7bfd0ecc11d4b3aa7b6130b46bcb7b72cba8917e17c5bbd57cb15ad668c7b38
MD5: 8d5f24a56ea25eac8902cb894310ce54
Tipo de archivo: vbs
Tamaño: 105,631 byte
Primera detección: 2025-01-30
Firma AV: Smoke Loader
Reportado por: JAMESWT_WT
Etiquetas: 156-253-250-62, Smoke Loader, SmokeLoader, vbs
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.
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
Lista IOC (1 indicadores)
# FILEPATH
b7bfd0ecc11d4b3aa7b6130b46bcb7b72cba8917e17c5bbd57cb15ad668c7b38
| Tipo | Valor | Nota |
|---|---|---|
| filepath | b7bfd0ecc11d4b3aa7b6130b46bcb7b72cba8917e17c5bbd57cb15ad668c7b38 | 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.