XLoader | Threat Level: high | Type: Infostealer

Cryptographic Identifiers

SHA256dbb5d65e1eff17a97c3cd704e1b8b289e6035915a4f6744a499ce009b7b38e1c
MD533cd1290d422f7adb8ed9e6452fcc5b0
File Typeexe
Size4516.0 KB
First Seen2025-10-09
File Namemsys-crypto-3.dll
Tagsexe, xloader

Malware Family: XLoader

XLoader, FormBook türevi stealer'dır.

TypeInfostealer
Programming LanguageC
Target PlatformWindows/macOS
C2 ProtocolHTTP
PurposeFormBook türevi
First Seen Year2020

Threat Indicators (IOC)

  • SHA256: dbb5d65e1eff17a97c3cd704e1b8b289e6035915a4f6744a499ce009b7b38e1c
  • MD5: 33cd1290d422f7adb8ed9e6452fcc5b0

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 XLoader_SHA256 {
    meta:
        description = "XLoader sample: dbb5d65e1eff17a9"
        threat_level = "high"
        first_seen = "2025-10-09"
    condition:
        hash.sha256(0, filesize) == "dbb5d65e1eff17a97c3cd704e1b8b289e6035915a4f6744a499ce009b7b38e1c"
}

XLoader — Malware Profile

XLoader, FormBook türevi stealer'dır.

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

Technical Details

Varyanta gore C/C#/VBS/PS1, anti-analysis (VM/debugger check), persistence (Registry/Task Scheduler/Startup folder), payload decryption ve injection (shellcode/PE), fileless execution teknikleri

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 — XLoader
# SHA256 dbb5d65e1eff17a97c3cd704e1b8b289e6035915a4f6744a499ce009b7b38e1c # MD5 33cd1290d422f7adb8ed9e6452fcc5b0
TypeValueNote
sha256 dbb5d65e1eff17a97c3cd704e1b8b289e6035915a4f6744a499ce009b7b38e1c
md5 33cd1290d422f7adb8ed9e6452fcc5b0

C2 Servers (1 recorded servers for this family)

Address Type Port Protocol Status Country
45.131.66.167 ip 4444 HTTP inactive RU

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

Tags
xloaderinfostealermalwarehighsha256analizzenginleştirilmiş