SmokeLoader | Tehdit Seviyesi: high | Tür: Loader

Kriptografik Tanımlayıcılar

SHA256cb76c19c178a71a5115ee308b51de416255de06d4e8226fdda8e59275a519c14
MD5870d23e188eccfe11eab8d561c95c08b
Dosya Türüexe
Boyut573.5 KB
İlk Görülme2020-11-20
Dosya Adıraezbm5myzip.exe
Etiketler170.106.35.220, Smoke Loader, SmokeLoader

Malware Ailesi: SmokeLoader

SmokeLoader, loader'dır.

TürLoader
Programlama DiliC
Hedef PlatformWindows
C2 ProtokolüHTTP
AmaçLoader/botnet
İlk Görülen Yıl2011
Diğer İsimlerDofoil

Tehdit Göstergeleri (IOC)

  • SHA256: cb76c19c178a71a5115ee308b51de416255de06d4e8226fdda8e59275a519c14
  • MD5: 870d23e188eccfe11eab8d561c95c08b

Bu örneğin tüm hash değerlerini VirusTotal üzerinde doğrulayabilirsiniz.

Sistem Temizleme Rehberi

  1. Sistemi ağdan ayırın — Loader başka zararlı yazılım indiriyor olabilir
  2. İndirilen tüm payload'ları analiz edin
  3. Tüm ağ trafiğini inceleyin, şüpheli bağlantıları kesin
  4. Antivirüs ile tam tarama yapın
  5. Sistem yenileme düşünün

YARA Kuralı İpuçları

rule SmokeLoader_SHA256 {
    meta:
        description = "SmokeLoader sample: cb76c19c178a71a5"
        threat_level = "high"
        first_seen = "2020-11-20"
    condition:
        hash.sha256(0, filesize) == "cb76c19c178a71a5115ee308b51de416255de06d4e8226fdda8e59275a519c14"
}

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 (2 indicators)

IOC — SmokeLoader
# SHA256 cb76c19c178a71a5115ee308b51de416255de06d4e8226fdda8e59275a519c14 # MD5 870d23e188eccfe11eab8d561c95c08b
TypeValueNote
sha256 cb76c19c178a71a5115ee308b51de416255de06d4e8226fdda8e59275a519c14 Sample:SmokeLoader
md5 870d23e188eccfe11eab8d561c95c08b Sample:SmokeLoader
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
smokeloaderloadermalwarehighsha256hash-analizi