SmokeLoader Analyse de malware
Propriétés du fichier
SHA256: a42f37df47fdbb173c7495e18128b693b087e9a3a9a2707ad7cdf18e8c2649a1
MD5: 1d3f62472fb8da2d37fc1c84e7da914e
Type de fichier: exe
Taille: 2,524,504 byte
Première observation: 2025-09-07
Signature AV: RustyStealer
Imphash: 28f0a0cfb357fe553e933bf84f98aca7
Signalé par: iamaachum
Étiquettes: exe, signed, SmokeLoader
Analyse statique : basée sur les métadonnées (échantillon non téléchargé)
SmokeLoader — Profil du malware
SmokeLoader. autoruns.exe Sysinternals version info spoofing. Spaso developer PDB username. stub.pdb loader project artifact.
Détails techniques
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 / Acteur de la menace
Unknown (sold on underground forums, multiple operators)
Capacités et comportement
Liste IOC (1 indicateurs)
# FILEPATH
a42f37df47fdbb173c7495e18128b693b087e9a3a9a2707ad7cdf18e8c2649a1
| Type | Valeur | Note |
|---|---|---|
| filepath | a42f37df47fdbb173c7495e18128b693b087e9a3a9a2707ad7cdf18e8c2649a1 | PDB |
Serveurs C2 (5 serveurs enregistrés pour cette famille)
| Adresse | Type | Port | Protocole | Statut | Pays |
|---|---|---|---|---|---|
| 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 | — |
Les adresses C2 proviennent uniquement d'échantillons de malwares vérifiés manuellement par l'équipe KEYDAL. Toute utilisation commerciale est interdite.