SmokeLoader | Tehdit Seviyesi: high | Tür: Loader

Kriptografik Tanımlayıcılar

SHA25657290220f611832cbc11c8b6d4929f1dcb585cb5a4c1b2833dca53c04fe072ba
MD5e7278f65e590909ee6d487a51c921bed
Dosya Türüexe
Boyut233.0 KB
İlk Görülme2021-03-26
Dosya Adı4ctt1.exe
EtiketlerRigEK, SmokeLoader

Malware Ailesi: SmokeLoader

SmokeLoader, modüler loader/botnet'tir.

TürLoader
Programlama DiliC
Hedef PlatformWindows
C2 ProtokolüHTTP
AmaçEk yük indiren botnet
İlk Görülen Yıl2011
Diğer İsimlerDofoil

Tehdit Göstergeleri (IOC)

  • SHA256: 57290220f611832cbc11c8b6d4929f1dcb585cb5a4c1b2833dca53c04fe072ba
  • MD5: e7278f65e590909ee6d487a51c921bed

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: 57290220f611832c"
        threat_level = "high"
        first_seen = "2021-03-26"
    condition:
        hash.sha256(0, filesize) == "57290220f611832cbc11c8b6d4929f1dcb585cb5a4c1b2833dca53c04fe072ba"
}

SmokeLoader — マルウェアプロファイル

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

マルウェアの種類
Loader
プログラミング言語
C
C2プロトコル
HTTP
標的システム
Windows
別名 (AKA)
Dofoil

技術詳細

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.

アトリビューション / 脅威アクター

Unknown (sold on underground forums, multiple operators)

機能と挙動

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

IOCリスト (2 件の指標)

IOC — SmokeLoader
# SHA256 57290220f611832cbc11c8b6d4929f1dcb585cb5a4c1b2833dca53c04fe072ba # MD5 e7278f65e590909ee6d487a51c921bed
タイプメモ
sha256 57290220f611832cbc11c8b6d4929f1dcb585cb5a4c1b2833dca53c04fe072ba
md5 e7278f65e590909ee6d487a51c921bed

C2サーバー (このファミリーで5台のサーバーを記録)

アドレス タイプ ポート プロトコル ステータス
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アドレスはKEYDALチームが手動で検証したマルウェア検体のみに基づいて提供されています。商用利用は禁止です。

タグ
smokeloaderloadermalwarehighsha256analizzenginleştirilmiş