SmokeLoader Malware Analizi

Dosya Ozellikleri

SHA256: c1830ba81a707357031fc8e5cd7cf3a6083c30f33669fe29590cc639140d6780

MD5: 22f0838b7f38ff8eac2e40208acb640c

Dosya Tipi: exe

Boyut: 218,624 byte

Ilk Gorulme: 2020-10-05

AV Imzasi: Smoke Loader

Imphash: f34d5f2d4577ed6d9ceec516c1f5a744

Raporlayan: GovCERT_CH

Etiketler: Smoke Loader, SmokeLoader

Statik analiz: metadata tabanli (ornek indirilmedi)

SmokeLoader — Malware Profili

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

Malware Tipi
Loader
Programlama Dili
C
C2 Protokolü
HTTP
Hedef Sistemler
Windows
Diğer Adlar (AKA)
Dofoil

Teknik Detaylar

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.

Atıf / Tehdit Aktörü

Unknown (sold on underground forums, multiple operators)

Yetenekler ve Davranış

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

IOC Listesi (1 gösterge)

IOC — SmokeLoader
# FILEPATH c1830ba81a707357031fc8e5cd7cf3a6083c30f33669fe29590cc639140d6780
TürDeğerNot
filepath c1830ba81a707357031fc8e5cd7cf3a6083c30f33669fe29590cc639140d6780 PDB
SmokeLoader — Tam Profiline Git →

C2 Sunucuları (Bu aile için 5 kayıtlı sunucu)

Adres Tür Port Protokol Durum Ülke
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 adresleri yalnızca KEYDAL ekibinin manuel olarak doğruladığı malware örnekleri üzerinden sunulmaktadır. Ticari amaçla kullanılamaz.

Etiketler
Smoke LoaderSmokeLoader