| Hash / Bilgi | Deger |
|---|---|
| SHA256 | d618d086cdfc61b69e6d93a13cea06e98ac2ad7d846f044990f2ce8305fe8d1b |
| MD5 | d2660f79c6ed3fa6e6d9e2d261a07085 |
| SHA1 | 6f62d52b374fa52a1d3d188cab916a451937deb2 |
| ImpHash | fed86fe2d9c90d6542a162388f4d6b45 |
| Dosya Adi | vbc.exe |
| Dosya Türü | exe |
| Boyut | 366,080 bytes |
| Ilk Görülme | 2022-03-03 |
Tehdit Degerlendirmesi
Bu ornek, hedef sisteme ek zararlı yazılım yuklemek amacıyla tasarlanmis moduler bir yukleyici (loader) olarak tespit edilmistir. Bankacılık trojanları, fidye yazılımları veya diger ikinci asama yukler indirebilmektedir.
Tespit Edilen Yetenekler
- Payload Indirme
- Surec Enjeksiyonu
- Kalicilik
- Anti-Analiz
- Sifrelenmis Iletisim
MalwareBazaar Etiketleri
Analiz Notu
Bu ornek SmokeLoader ailesine ait ve MalwareBazaar platformundan alınmıstır. KEYDAL Guvenlik Arastirmaları tarafından metadata analizi gerceklestirilmis ve IOC veritabanına eklenmistir.
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
d618d086cdfc61b69e6d93a13cea06e98ac2ad7d846f044990f2ce8305fe8d1b
# MD5
d2660f79c6ed3fa6e6d9e2d261a07085
| 类型 | 值 | 备注 |
|---|---|---|
| sha256 | d618d086cdfc61b69e6d93a13cea06e98ac2ad7d846f044990f2ce8305fe8d1b | |
| md5 | d2660f79c6ed3fa6e6d9e2d261a07085 |
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。