StealC | Threat Level: high | Type: Infostealer

Cryptographic Identifiers

SHA256638d8387177af5c5575e9a816ecb49d06fc680c4a191628a268b349ac0e770d1
MD552a061bb71c67555425e909529f347c7
File Typeexe
Size1739.2 KB
First Seen2025-11-21
File Namefile
TagsD, dropped-by-gcleaner, exe, Stealc

Malware Family: StealC

StealC, stealer'dır.

TypeInfostealer
Programming LanguageC
Target PlatformWindows
C2 ProtocolHTTP
PurposeStealer
First Seen Year2023

Threat Indicators (IOC)

  • SHA256: 638d8387177af5c5575e9a816ecb49d06fc680c4a191628a268b349ac0e770d1
  • MD5: 52a061bb71c67555425e909529f347c7

You can verify all hash values of this sample on VirusTotal.

System Cleanup Guide

  1. Disconnect the system from the network immediately
  2. Yeni bir cihazdan banka hesabı, sosyal medya ve e-posta şifrelerini değiştirin
  3. Move crypto wallets to a new address and abandon the old ones
  4. Start a full scan with up-to-date antivirus
  5. Clear saved browser passwords and enable 2FA
  6. Sign out of all sessions on every affected service

YARA Rule Hints

rule StealC_SHA256 {
    meta:
        description = "StealC sample: 638d8387177af5c5"
        threat_level = "high"
        first_seen = "2025-11-21"
    condition:
        hash.sha256(0, filesize) == "638d8387177af5c5575e9a816ecb49d06fc680c4a191628a268b349ac0e770d1"
}

StealC — Malware Profile

StealC, 2023 yilinda ortaya cikan Go (Golang) tabanlı bir MaaS infostealer ailesidir. Vidar ve Raccoon kaynak kodundan ilham alinarak gelistirildigi dusunulmektedir. 30+ tarayici, kripto cuzdan, FTP istemcisi, email ve Discord/Telegram token hedefler.

Malware Type
Infostealer
Programming Language
C
C2 Protocol
HTTP
Target Systems
Windows

Technical Details

C dili, HTTP POST C2, browser stealer (Chromium/Firefox), kripto wallet stealer (50+ tarayici eklentisi), Telegram stealer, Steam, Discord token stealer, fingerprint modulu

Capabilities & Behavior

Tarayıcı Kimlik Bilgileri
Çerez Hırsızlığı
Kripto Cüzdan Çalma
Sistem Bilgisi
Ekran Görüntüsü
FTP/SSH İstemci Şifreleri
E-posta İstemcisi Çalma
Veri Sızıntısı

IOC List (2 indicators)

IOC — StealC
# SHA256 638d8387177af5c5575e9a816ecb49d06fc680c4a191628a268b349ac0e770d1 # MD5 52a061bb71c67555425e909529f347c7
TypeValueNote
sha256 638d8387177af5c5575e9a816ecb49d06fc680c4a191628a268b349ac0e770d1 Sample:StealC
md5 52a061bb71c67555425e909529f347c7 Sample:StealC

C2 Servers (4 recorded servers for this family)

Address Type Port Protocol Status Country
www.pakistani.org domain — HTTP active —
45.87.152.64 ip 80 HTTP inactive NL
185.174.137.219 ip 80 HTTP inactive RU
godebugs.Info domain — HTTP inactive —

C2 addresses are provided only from malware samples manually verified by the KEYDAL team. Commercial use is prohibited.

Tags
stealcinfostealermalwarehighsha256hash-analizi