SmokeLoader Malware-Analyse

Dateieigenschaften

SHA256: 10dbe605fd72cb147a95eadc7b7fff74d8012f2eb99d07f9d33e9df7c377c2e6

MD5: 11bf0445497a41f6991c3b5cbdbe0d2c

Dateityp: exe

Größe: 4,344,912 byte

Erstsichtung: 2025-12-07

AV-Signatur: Smoke Loader

Imphash: e31c46814430f7f4f157076b51b84724

Gemeldet von: amznemu

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 10dbe605fd72cb147a95eadc7b7fff74d8012f2eb99d07f9d33e9df7c377c2e6
TypWertBemerkung
filepath 10dbe605fd72cb147a95eadc7b7fff74d8012f2eb99d07f9d33e9df7c377c2e6 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