StealC | Threat Level: high | Type: Infostealer

Cryptographic Identifiers

SHA25681403f9410cd7508841e32d1dfcf398eabf65033c6da4ac8fce342143af1551c
MD5c0cce4c369d536cafb7464bc10a9fa31
File Typeexe
Size1174.0 KB
First Seen2025-12-12
File Namea41b566f81de4c89905cfd4efaaa328e_build.exe
Tagsexe, Stealc

Malware Family: StealC

StealC, stealer'dır.

TypeInfostealer
Programming LanguageC
Target PlatformWindows
C2 ProtocolHTTP
PurposeStealer
First Seen Year2023

Threat Indicators (IOC)

  • SHA256: 81403f9410cd7508841e32d1dfcf398eabf65033c6da4ac8fce342143af1551c
  • MD5: c0cce4c369d536cafb7464bc10a9fa31

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: 81403f9410cd7508"
        threat_level = "high"
        first_seen = "2025-12-12"
    condition:
        hash.sha256(0, filesize) == "81403f9410cd7508841e32d1dfcf398eabf65033c6da4ac8fce342143af1551c"
}

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 81403f9410cd7508841e32d1dfcf398eabf65033c6da4ac8fce342143af1551c # MD5 c0cce4c369d536cafb7464bc10a9fa31
TypeValueNote
sha256 81403f9410cd7508841e32d1dfcf398eabf65033c6da4ac8fce342143af1551c Sample:StealC
md5 c0cce4c369d536cafb7464bc10a9fa31 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