SmokeLoader Sample: 16328212055D6AA7

SmokeLoader Malware Analysis

File Properties

SHA256: 16328212055d6aa79c45b6624607f74b732b159db4c6cdf7d8e6835ebdc6e392

MD5: 8ccd875893cd23b67d7c61ea735f5c52

File Type: vbs

Size: 224,763 byte

First Seen: 2025-01-09

AV Signature: Smoke Loader

Reported By: lontze7

Tags: Smoke Loader, SmokeLoader, vbs

Static analysis: metadata-based (sample not downloaded)

SmokeLoader — Malware Profile

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

Malware Type

Loader

Programming Language

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
16328212055d6aa79c45b6624607f74b732b159db4c6cdf7d8e6835ebdc6e392

Type	Value	Note
filepath	16328212055d6aa79c45b6624607f74b732b159db4c6cdf7d8e6835ebdc6e392	PDB

SmokeLoader — Go to Full Profile →

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.