SmokeLoader Analyse de malware

Propriétés du fichier

SHA256: 496e0e9f8c0f4239f5ef32035a628fba3179722ae147e016ae72ae3a6d067433

MD5: 07a8bc35ca1632555dd46a6867f22dd7

Type de fichier: exe

Taille: 209,920 byte

Première observation: 2022-09-09

Signature AV: NetSupport

Imphash: 5f01abba712e2454333b4e9c03c9ed2c

Signalé par: abuse_ch

Étiquettes: exe, NetSupport, 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.

Type de malware
Loader
Langage de programmation
C
Protocole C2
HTTP
Systèmes ciblés
Windows
Aussi connu sous (AKA)
Dofoil

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

Payload İndirme
Süreç Enjeksiyonu
Modüler Mimari
Kimlik Bilgisi Hırsızlığı
Yanal Hareket
Kalıcılık
Anti-VM/Sandbox
İkincil Payload Dağıtımı

Liste IOC (1 indicateurs)

IOC — SmokeLoader
# FILEPATH 496e0e9f8c0f4239f5ef32035a628fba3179722ae147e016ae72ae3a6d067433
TypeValeurNote
filepath 496e0e9f8c0f4239f5ef32035a628fba3179722ae147e016ae72ae3a6d067433 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.

Tags
exeNetSupportSmokeLoader