Manuel Statik Analiz (LLM Okumali) — SmokeLoader | Tehdit: HIGH

Dosya Kimligi

SHA2560b06c6a25000addde175277b2d157d5bca4ab95cbfe3d984f1dba2ecefa3a4cd
Boyut46.592 byte (~45 KB) — kompakt yukleyici

Analiz Sonucu

Bu SmokeLoader ornegi sadece 220 adet okunabilir string icermektedir; bu durum agir paketleme/sifrelemin gostergesidir. C2 URL'si runtime'da sifre cözülerek elde edilir. Statik analizde herhangi bir cleartext IOC gorünmemistir.

Bilinen SmokeLoader Yetenekleri

  • Modüler yukleyici — ek payload'lar indirir (RAT, stealer, ransomware)
  • Process injection ile gizlenme
  • Anti-analiz: anti-debug, anti-VM
  • HTTP/HTTPS C2 ile iletisim
  • Botnet altyapisi — büyük olcekli kampanyalarda kullanilir

IOC

SHA2560b06c6a25000addde175277b2d157d5bca4ab95cbfe3d984f1dba2ecefa3a4cd
C2Sifrelenmis (dinamik analiz gerekli)

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 (1 件の指標)

IOC — SmokeLoader
# SHA256 0b06c6a25000addde175277b2d157d5bca4ab95cbfe3d984f1dba2ecefa3a4cd
タイプ値メモ
sha256 0b06c6a25000addde175277b2d157d5bca4ab95cbfe3d984f1dba2ecefa3a4cd
SmokeLoader — 完全プロファイルへ →

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 国
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
smokeloaderloaderpackerstatik-analiz