XLoader | Threat Level: high | Type: Infostealer

Cryptographic Identifiers

SHA2566f506966cc292ab9e2e07c2f32ecda93f013eed85a39dd8bc4df2c8763a070ba
MD5b74a2b873985b1fb41dd86969e421a2e
File Typejs
Size43.9 KB
First Seen2025-09-30
File Namestub.js
Tagsjavascript, js, Nebula, NebulaRansomware, Ransomware, xloader

Malware Family: XLoader

XLoader, FormBook türevi'dir.

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

Threat Indicators (IOC)

  • SHA256: 6f506966cc292ab9e2e07c2f32ecda93f013eed85a39dd8bc4df2c8763a070ba
  • MD5: b74a2b873985b1fb41dd86969e421a2e

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: 6f506966cc292ab9"
        threat_level = "high"
        first_seen = "2025-09-30"
    condition:
        hash.sha256(0, filesize) == "6f506966cc292ab9e2e07c2f32ecda93f013eed85a39dd8bc4df2c8763a070ba"
}

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 6f506966cc292ab9e2e07c2f32ecda93f013eed85a39dd8bc4df2c8763a070ba # MD5 b74a2b873985b1fb41dd86969e421a2e
TypeValueNote
sha256 6f506966cc292ab9e2e07c2f32ecda93f013eed85a39dd8bc4df2c8763a070ba Sample:XLoader
md5 b74a2b873985b1fb41dd86969e421a2e 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