XLoader | Threat Level: high | Type: Infostealer

Cryptographic Identifiers

SHA2562750afa2ef6dffa6f31a302dbe824be3fd70176f5a83729b6dad4bc575c6deb9
MD571879ad69622fa862aadb7f551cdf023
File Typezip
Size2230.6 KB
First Seen2025-09-24
File Nameoptimized_MSI_PRO_with_b64.zip
TagsFormBook, MSI-STEGO, stego, xloader, zip

Malware Family: XLoader

XLoader, FormBook türevi'dir.

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

Threat Indicators (IOC)

  • SHA256: 2750afa2ef6dffa6f31a302dbe824be3fd70176f5a83729b6dad4bc575c6deb9
  • MD5: 71879ad69622fa862aadb7f551cdf023

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 XLoader_SHA256 {
    meta:
        description = "XLoader sample: 2750afa2ef6dffa6"
        threat_level = "high"
        first_seen = "2025-09-24"
    condition:
        hash.sha256(0, filesize) == "2750afa2ef6dffa6f31a302dbe824be3fd70176f5a83729b6dad4bc575c6deb9"
}

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 2750afa2ef6dffa6f31a302dbe824be3fd70176f5a83729b6dad4bc575c6deb9 # MD5 71879ad69622fa862aadb7f551cdf023
TypeValueNote
sha256 2750afa2ef6dffa6f31a302dbe824be3fd70176f5a83729b6dad4bc575c6deb9 Sample:XLoader
md5 71879ad69622fa862aadb7f551cdf023 Sample:XLoader

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
xloaderinfostealermalwarehighsha256hash-analizi