StealC | Threat Level: high | Type: Infostealer

Cryptographic Identifiers

SHA256559651777aff8ae48d30e6e5dfcb966b3651a7dd18e50d395d4b79b675dee23d
MD552e0ca5fbd61935d6b43bcf6ad56fe82
File Typeexe
Size779.3 KB
First Seen2025-12-04
File Nameyjlhur18.exe
Tagsexe, Stealc

Malware Family: StealC

StealC, stealer'dır.

TypeInfostealer
Programming LanguageC
Target PlatformWindows
C2 ProtocolHTTP
PurposeStealer
First Seen Year2023

Threat Indicators (IOC)

  • SHA256: 559651777aff8ae48d30e6e5dfcb966b3651a7dd18e50d395d4b79b675dee23d
  • MD5: 52e0ca5fbd61935d6b43bcf6ad56fe82

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: 559651777aff8ae4"
        threat_level = "high"
        first_seen = "2025-12-04"
    condition:
        hash.sha256(0, filesize) == "559651777aff8ae48d30e6e5dfcb966b3651a7dd18e50d395d4b79b675dee23d"
}

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 559651777aff8ae48d30e6e5dfcb966b3651a7dd18e50d395d4b79b675dee23d # MD5 52e0ca5fbd61935d6b43bcf6ad56fe82
TypeValueNote
sha256 559651777aff8ae48d30e6e5dfcb966b3651a7dd18e50d395d4b79b675dee23d Sample:StealC
md5 52e0ca5fbd61935d6b43bcf6ad56fe82 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