SmokeLoader Malware Analizi

Dosya Ozellikleri

SHA256: 93fa985753a73dbeeb8b6fabebc0054a4aefbf16a811d37c6e1a89c51671c059

MD5: 5d6637391215c776162edc392cd20c6a

Dosya Tipi: exe

Boyut: 211,968 byte

Ilk Gorulme: 2022-09-10

AV Imzasi: NetSupport

Imphash: c6ebcce34f52724120b39c7a195cfc37

Raporlayan: abuse_ch

Etiketler: exe, NetSupport, SmokeLoader, ysanhumeg1-com

Statik analiz: metadata tabanli (ornek indirilmedi)

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 (1 indicators)

IOC — SmokeLoader
# FILEPATH 93fa985753a73dbeeb8b6fabebc0054a4aefbf16a811d37c6e1a89c51671c059
TypeValueNote
filepath 93fa985753a73dbeeb8b6fabebc0054a4aefbf16a811d37c6e1a89c51671c059 PDB

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.

Tags
exeNetSupportSmokeLoaderysanhumeg1-com