SmokeLoader Malware-Analyse

Dateieigenschaften

SHA256: 7ecd8a8db3343a68ef4cf73da7b3208a30296c3fe0bb05c55409c33017474dd2

MD5: 574a849ed2e85705d6af742242d5f822

Dateityp: exe

Größe: 265,216 byte

Erstsichtung: 2022-09-10

AV-Signatur: NetSupport

Imphash: fffc9730bcd3ee983250f18d92247c75

Gemeldet von: abuse_ch

Tags: exe, NetSupport, SmokeLoader, ysanhumeg1-com

Statische Analyse: metadatenbasiert (Sample nicht heruntergeladen)

SmokeLoader — Malware-Profil

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

Malware-Typ
Loader
Programmiersprache
C
C2-Protokoll
HTTP
Zielsysteme
Windows
Auch bekannt als (AKA)
Dofoil

Technische 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 / Bedrohungsakteur

Unknown (sold on underground forums, multiple operators)

Fähigkeiten & Verhalten

Payload İndirme
Süreç Enjeksiyonu
Modüler Mimari
Kimlik Bilgisi Hırsızlığı
Yanal Hareket
Kalıcılık
Anti-VM/Sandbox
İkincil Payload Dağıtımı

IOC-Liste (1 Indikatoren)

IOC — SmokeLoader
# FILEPATH 7ecd8a8db3343a68ef4cf73da7b3208a30296c3fe0bb05c55409c33017474dd2
TypWertBemerkung
filepath 7ecd8a8db3343a68ef4cf73da7b3208a30296c3fe0bb05c55409c33017474dd2 PDB

C2-Server (5 erfasste Server für diese Familie)

Adresse Typ Port Protokoll Status Land
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-Adressen stammen ausschließlich aus vom KEYDAL-Team manuell verifizierten Malware-Samples. Kommerzielle Nutzung ist untersagt.

Tags
exeNetSupportSmokeLoaderysanhumeg1-com