SmokeLoader — CoVid_2019_Check_A4372.doc [0da1163a]

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 — 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 (5 件の指標)

IOC — SmokeLoader コピー

# SHA256 0da1163a00143901f52c50317fe036c83efca8680d1e1d5702a0118a10b35d7d # MD5 6f1f70d8b7d62a7b8dce59ebf077f429 # IP 185.173.35.16 # IP 91.243.44.247 # URL https://smokeloader-panel.ru/bot/

タイプ	値	メモ
sha256	0da1163a00143901f52c50317fe036c83efca8680d1e1d5702a0118a10b35d7d
md5	6f1f70d8b7d62a7b8dce59ebf077f429
ip	185.173.35.16	C2:8080
ip	91.243.44.247	C2:8888
url	https://smokeloader-panel.ru/bot/	SmokeLoader bot C2 endpoint

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。