SmokeLoader Malware-Analyse

Dateieigenschaften

SHA256: 9f356871e7ba9c38abab14c34dc6b8648df04877937fb0c1952cd3e44156b3e5

MD5: a4259ea20e2cb8ea468707b757f0ed79

Dateityp: exe

Größe: 303,616 byte

Erstsichtung: 2025-01-17

AV-Signatur: Smoke Loader

Imphash: 39d58a2e86911a86e0f7c8045bcc250e

Gemeldet von: JAMESWT_WT

Tags: 94-156-177-72, 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 9f356871e7ba9c38abab14c34dc6b8648df04877937fb0c1952cd3e44156b3e5
TypWertBemerkung
filepath 9f356871e7ba9c38abab14c34dc6b8648df04877937fb0c1952cd3e44156b3e5 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
94-156-177-72exeSmoke LoaderSmokeLoader