SmokeLoader Malware-Analyse

Dateieigenschaften

SHA256: 65af1ef671dafde80bef708f3001a4d94eeb54fb9193d409002d4bae52fbd99c

MD5: 04290323e3dae758ad39580ec1e4e402

Dateityp: exe

Größe: 165,888 byte

Erstsichtung: 2021-03-16

AV-Signatur: Smoke Loader

Imphash: 0db5122541c535013699ed54854d9680

Gemeldet von: nao_sec

Tags: Dofoil, RigEK, 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 65af1ef671dafde80bef708f3001a4d94eeb54fb9193d409002d4bae52fbd99c
TypWertBemerkung
filepath 65af1ef671dafde80bef708f3001a4d94eeb54fb9193d409002d4bae52fbd99c PDB
SmokeLoader — Zum vollständigen Profil →

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
DofoilRigEKSmoke LoaderSmokeLoader