Kriptografik Tanımlayıcılar
| SHA256 | cb76c19c178a71a5115ee308b51de416255de06d4e8226fdda8e59275a519c14 |
|---|---|
| MD5 | 870d23e188eccfe11eab8d561c95c08b |
| Dosya Türü | exe |
| Boyut | 573.5 KB |
| İlk Görülme | 2020-11-20 |
| Dosya Adı | raezbm5myzip.exe |
| Etiketler | 170.106.35.220, Smoke Loader, SmokeLoader |
Malware Ailesi: SmokeLoader
SmokeLoader, loader'dır.
| Tür | Loader |
|---|---|
| Programlama Dili | C |
| Hedef Platform | Windows |
| C2 Protokolü | HTTP |
| Amaç | Loader/botnet |
| İlk Görülen Yıl | 2011 |
| Diğer İsimler | Dofoil |
Tehdit Göstergeleri (IOC)
- SHA256:
cb76c19c178a71a5115ee308b51de416255de06d4e8226fdda8e59275a519c14 - MD5:
870d23e188eccfe11eab8d561c95c08b
Bu örneğin tüm hash değerlerini VirusTotal üzerinde doğrulayabilirsiniz.
Sistem Temizleme Rehberi
- Sistemi ağdan ayırın — Loader başka zararlı yazılım indiriyor olabilir
- İndirilen tüm payload'ları analiz edin
- Tüm ağ trafiğini inceleyin, şüpheli bağlantıları kesin
- Antivirüs ile tam tarama yapın
- 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 — 恶意软件档案
SmokeLoader. autoruns.exe Sysinternals version info spoofing. Spaso developer PDB username. stub.pdb loader project artifact.
技术细节
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.
归因 / 威胁行为者
Unknown (sold on underground forums, multiple operators)
能力与行为
IOC列表 (2 个指标)
# SHA256
cb76c19c178a71a5115ee308b51de416255de06d4e8226fdda8e59275a519c14
# MD5
870d23e188eccfe11eab8d561c95c08b
| 类型 | 值 | 备注 |
|---|---|---|
| sha256 | cb76c19c178a71a5115ee308b51de416255de06d4e8226fdda8e59275a519c14 | Sample:SmokeLoader |
| md5 | 870d23e188eccfe11eab8d561c95c08b | Sample:SmokeLoader |
C2服务器 (该家族共有 5 台已记录服务器)
| 地址 | 类型 | 端口 | 协议 | 状态 | 国家 |
|---|---|---|---|---|---|
| 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 地址仅来自 KEYDAL 团队人工验证的恶意软件样本。禁止用于商业用途。