StealC | Threat Level: high | Type: Infostealer

Cryptographic Identifiers

SHA2569de91176c21607a231f19a68d3c413ce17518650be2c1ef2a5b4e42c7728d0fb
MD58ba4a99fa2174c1c8eb1325cb8a806c0
File Typeexe
Size4279.7 KB
First Seen2026-01-28
File NameFixMBoostrapppe.exe
Tagsexe, signed, Stealc, vidar

Malware Family: StealC

StealC, stealer'dır.

TypeInfostealer
Programming LanguageC
Target PlatformWindows
C2 ProtocolHTTP
PurposeStealer
First Seen Year2023

Threat Indicators (IOC)

  • SHA256: 9de91176c21607a231f19a68d3c413ce17518650be2c1ef2a5b4e42c7728d0fb
  • MD5: 8ba4a99fa2174c1c8eb1325cb8a806c0

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: 9de91176c21607a2"
        threat_level = "high"
        first_seen = "2026-01-28"
    condition:
        hash.sha256(0, filesize) == "9de91176c21607a231f19a68d3c413ce17518650be2c1ef2a5b4e42c7728d0fb"
}

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 9de91176c21607a231f19a68d3c413ce17518650be2c1ef2a5b4e42c7728d0fb # MD5 8ba4a99fa2174c1c8eb1325cb8a806c0
TypeValueNote
sha256 9de91176c21607a231f19a68d3c413ce17518650be2c1ef2a5b4e42c7728d0fb Sample:StealC
md5 8ba4a99fa2174c1c8eb1325cb8a806c0 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