SmokeLoader Malware Analizi

Dosya Ozellikleri

SHA256: 5f20a054e3a4c80300a2c020046eb6b4dbfc16631770aab5fd6c4acfcccb6f2f

MD5: 12347ddd45e256778bd3382c5d6e6d09

Dosya Tipi: exe

Boyut: 4,758,032 byte

Ilk Gorulme: 2025-12-07

AV Imzasi: Smoke Loader

Imphash: c368fa427f1f3f59d6f5623ae63cdace

Raporlayan: amznemu

Etiketler: exe, Smoke Loader, SmokeLoader

Statik analiz: metadata tabanli (ornek indirilmedi)

SmokeLoader — Malware Profile

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

Malware Type
Loader
Programming Language
C
C2 Protocol
HTTP
Target Systems
Windows
Also Known As (AKA)
Dofoil

Technical 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 / Threat Actor

Unknown (sold on underground forums, multiple operators)

Capabilities & Behavior

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

IOC List (1 indicators)

IOC — SmokeLoader
# FILEPATH 5f20a054e3a4c80300a2c020046eb6b4dbfc16631770aab5fd6c4acfcccb6f2f
TypeValueNote
filepath 5f20a054e3a4c80300a2c020046eb6b4dbfc16631770aab5fd6c4acfcccb6f2f PDB
SmokeLoader — Go to Full Profile →

C2 Servers (5 recorded servers for this family)

Address Type Port Protocol Status Country
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 addresses are provided only from malware samples manually verified by the KEYDAL team. Commercial use is prohibited.

Tags
exeSmoke LoaderSmokeLoader