SmokeLoader — 4ba211fd0f4e87d602cc3ff2d72d5923.exe [cad30ad3]

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 — Malware Profile

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

Malware Type

Loader

Programming Language

C

C2 Protocol

HTTP

Target Systems

Windows

Also Known As (AKA)

Dofoil

Technical Details

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.

Attribution / Threat Actor

Unknown (sold on underground forums, multiple operators)

Capabilities & Behavior

Payload İndirme

Süreç Enjeksiyonu

Modüler Mimari

Kimlik Bilgisi Hırsızlığı

Yanal Hareket

Kalıcılık

Anti-VM/Sandbox

İkincil Payload Dağıtımı

IOC List (2 indicators)

IOC — SmokeLoader Copy

# SHA256 cad30ad3dc657a39b8e8625ed7d40ae81f4ad7808021758ddbed1990227403e9 # MD5 4ba211fd0f4e87d602cc3ff2d72d5923

Type	Value	Note
sha256	cad30ad3dc657a39b8e8625ed7d40ae81f4ad7808021758ddbed1990227403e9
md5	4ba211fd0f4e87d602cc3ff2d72d5923

C2 Servers (5 recorded servers for this family)

Address	Type	Port	Protocol	Status	Country
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 addresses are provided only from malware samples manually verified by the KEYDAL team. Commercial use is prohibited.