SmokeLoader Malware-Analyse

Dateieigenschaften

SHA256: 577bc27da37cb47b93124d3b85f236ba9506a456da77e0341b243d515b668030

MD5: 81c79c34c879724584919c5e2284ab21

Dateityp: exe

Größe: 668,559 byte

Erstsichtung: 2021-12-17

AV-Signatur: Smoke Loader

Imphash: 4cfda23baf1e2e983ddfeca47a5c755a

Gemeldet von: pr0xylife

Tags: exe, Smoke Loader, SmokeLoader

Statische Analyse: metadatenbasiert (Sample nicht heruntergeladen)

SmokeLoader — Malware-Profil

SmokeLoader. autoruns.exe Sysinternals version info spoofing. Spaso developer PDB username. stub.pdb loader project artifact.

Malware-Typ
Loader
Programmiersprache
C
C2-Protokoll
HTTP
Zielsysteme
Windows
Auch bekannt als (AKA)
Dofoil

Technische Details

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 / Bedrohungsakteur

Unknown (sold on underground forums, multiple operators)

Fähigkeiten & Verhalten

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

IOC-Liste (1 Indikatoren)

IOC — SmokeLoader
# FILEPATH 577bc27da37cb47b93124d3b85f236ba9506a456da77e0341b243d515b668030
TypWertBemerkung
filepath 577bc27da37cb47b93124d3b85f236ba9506a456da77e0341b243d515b668030 PDB

C2-Server (5 erfasste Server für diese Familie)

Adresse Typ Port Protokoll Status Land
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 —

C2-Adressen stammen ausschließlich aus vom KEYDAL-Team manuell verifizierten Malware-Samples. Kommerzielle Nutzung ist untersagt.

Tags
exeSmoke LoaderSmokeLoader