MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA2569fe05742a67d1b9d42e880c738cd37893e7ec73657d8592908b88908bdaac8bf
MD5e6016d454089ea04d39bbec1b8d45986
File Typerar
Size106.4 KB
First Seen2026-06-12
File NameReciboXdeXpago.rar
TagsMassLogger, rar

Malware Family: MassLogger

MassLogger, email tabanlı keylogger'dır.

TypeInfostealer
Programming LanguageC#/.NET
Target PlatformWindows
C2 ProtocolSMTP/FTP
PurposeEmail keylogger
First Seen Year2020

Threat Indicators (IOC)

  • SHA256: 9fe05742a67d1b9d42e880c738cd37893e7ec73657d8592908b88908bdaac8bf
  • MD5: e6016d454089ea04d39bbec1b8d45986

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 MassLogger_SHA256 {
    meta:
        description = "MassLogger sample: 9fe05742a67d1b9d"
        threat_level = "medium"
        first_seen = "2026-06-12"
    condition:
        hash.sha256(0, filesize) == "9fe05742a67d1b9d42e880c738cd37893e7ec73657d8592908b88908bdaac8bf"
}

MassLogger — Malware Profile

MassLogger credential stealer. PT2600000043.js Portekiz fatura lurü. CommonJS obfuscation. dispatch configuration data.

Malware Type
Infostealer
Programming Language
C#/.NET
C2 Protocol
SMTP/FTP
Target Systems
Windows

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 — MassLogger
# SHA256 9fe05742a67d1b9d42e880c738cd37893e7ec73657d8592908b88908bdaac8bf # MD5 e6016d454089ea04d39bbec1b8d45986
TypeValueNote
sha256 9fe05742a67d1b9d42e880c738cd37893e7ec73657d8592908b88908bdaac8bf Sample:MassLogger
md5 e6016d454089ea04d39bbec1b8d45986 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi