MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256678dd08050e3c808b5bd4ea9545678f6670ddde6268125637ef61e12c0cd610e
MD5cbe8478e6817bc9cc03d95f78b034d5a
File Typeexe
Size780.5 KB
First Seen2026-05-08
File Name678dd08050e3c808b5bd4ea9545678f6670ddde6268125637ef61e12c0cd610e
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: 678dd08050e3c808b5bd4ea9545678f6670ddde6268125637ef61e12c0cd610e
  • MD5: cbe8478e6817bc9cc03d95f78b034d5a

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: 678dd08050e3c808"
        threat_level = "medium"
        first_seen = "2026-05-08"
    condition:
        hash.sha256(0, filesize) == "678dd08050e3c808b5bd4ea9545678f6670ddde6268125637ef61e12c0cd610e"
}

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 678dd08050e3c808b5bd4ea9545678f6670ddde6268125637ef61e12c0cd610e # MD5 cbe8478e6817bc9cc03d95f78b034d5a
TypeValueNote
sha256 678dd08050e3c808b5bd4ea9545678f6670ddde6268125637ef61e12c0cd610e Sample:MassLogger
md5 cbe8478e6817bc9cc03d95f78b034d5a Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi