MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256a6d5538f3689b925df44d719d267ebe611b798f53852ee6859566378fb30584e
MD5cb4f549e9266c41f868fbed14d915ffb
File Typeexe
Size700.5 KB
First Seen2026-05-20
File NameORDER_2025_PO_VIBING.exe
Tagsexe, MassLogger

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: a6d5538f3689b925df44d719d267ebe611b798f53852ee6859566378fb30584e
  • MD5: cb4f549e9266c41f868fbed14d915ffb

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: a6d5538f3689b925"
        threat_level = "medium"
        first_seen = "2026-05-20"
    condition:
        hash.sha256(0, filesize) == "a6d5538f3689b925df44d719d267ebe611b798f53852ee6859566378fb30584e"
}

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 a6d5538f3689b925df44d719d267ebe611b798f53852ee6859566378fb30584e # MD5 cb4f549e9266c41f868fbed14d915ffb
TypeValueNote
sha256 a6d5538f3689b925df44d719d267ebe611b798f53852ee6859566378fb30584e Sample:MassLogger
md5 cb4f549e9266c41f868fbed14d915ffb Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi