SmokeLoader | Tehdit Seviyesi: high | Tür: Loader

Kriptografik Tanımlayıcılar

SHA2562540f6f96c7686299fcd27c4e17a9191e107b4e65a7c32ed1d290775e96d9bd1
MD53d638fa0a4c17eb3ebbef857da2b5dac
Dosya Türüexe
Boyut305.0 KB
İlk Görülme2022-09-11
Dosya Adı3d638fa0a4c17eb3ebbef857da2b5dac.exe
Etiketlerexe, from netsupport smokeloader, NetSupport, SmokeLoader, ysanhumeg1-com

Malware Ailesi: SmokeLoader

SmokeLoader, loader'dır.

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

Tehdit Göstergeleri (IOC)

  • SHA256: 2540f6f96c7686299fcd27c4e17a9191e107b4e65a7c32ed1d290775e96d9bd1
  • MD5: 3d638fa0a4c17eb3ebbef857da2b5dac

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: 2540f6f96c768629"
        threat_level = "high"
        first_seen = "2022-09-11"
    condition:
        hash.sha256(0, filesize) == "2540f6f96c7686299fcd27c4e17a9191e107b4e65a7c32ed1d290775e96d9bd1"
}

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 2540f6f96c7686299fcd27c4e17a9191e107b4e65a7c32ed1d290775e96d9bd1 # MD5 3d638fa0a4c17eb3ebbef857da2b5dac
TypeValueNote
sha256 2540f6f96c7686299fcd27c4e17a9191e107b4e65a7c32ed1d290775e96d9bd1 Sample:SmokeLoader
md5 3d638fa0a4c17eb3ebbef857da2b5dac 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