StealC | Threat Level: high | Type: Infostealer

Cryptographic Identifiers

SHA256f4584140becea8907edb22c8a99d5e9e9157931aa1e2ab29522adbc9ba684f07
MD5f9e30738b2b0cd581b80596af2e1c884
File Typeexe
Size693.5 KB
First Seen2025-12-04
File Namefile
Tagsdropped-by-amadey, exe, fbf543, Stealc

Malware Family: StealC

StealC, stealer'dır.

TypeInfostealer
Programming LanguageC
Target PlatformWindows
C2 ProtocolHTTP
PurposeStealer
First Seen Year2023

Threat Indicators (IOC)

  • SHA256: f4584140becea8907edb22c8a99d5e9e9157931aa1e2ab29522adbc9ba684f07
  • MD5: f9e30738b2b0cd581b80596af2e1c884

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: f4584140becea890"
        threat_level = "high"
        first_seen = "2025-12-04"
    condition:
        hash.sha256(0, filesize) == "f4584140becea8907edb22c8a99d5e9e9157931aa1e2ab29522adbc9ba684f07"
}

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 f4584140becea8907edb22c8a99d5e9e9157931aa1e2ab29522adbc9ba684f07 # MD5 f9e30738b2b0cd581b80596af2e1c884
TypeValueNote
sha256 f4584140becea8907edb22c8a99d5e9e9157931aa1e2ab29522adbc9ba684f07 Sample:StealC
md5 f9e30738b2b0cd581b80596af2e1c884 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