SmokeLoader Malware Analizi

Dosya Ozellikleri

SHA256: 7ba77fb4cec8eb8b6264fa7ba0778d7c9ccb7f99a50a2ec97f65ac9b6755be71

MD5: b867d891c0561185eb83b704059579f7

Dosya Tipi: exe

Boyut: 272,384 byte

Ilk Gorulme: 2022-09-16

AV Imzasi: NetSupport

Imphash: db4f8dd885859039e0236ac1afc9f55e

Raporlayan: abuse_ch

Etiketler: exe, NetSupport, SmokeLoader

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 7ba77fb4cec8eb8b6264fa7ba0778d7c9ccb7f99a50a2ec97f65ac9b6755be71
TypeValueNote
filepath 7ba77fb4cec8eb8b6264fa7ba0778d7c9ccb7f99a50a2ec97f65ac9b6755be71 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
exeNetSupportSmokeLoader