MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256692a4df2ae72a96a0451e5a4f8fcada0801e89fe8ee76f71c94df11ac8700e55
MD5bfa37024a30ca58a0dbd28e59060d5a9
File Typeexe
Size892.5 KB
First Seen2026-05-08
File Name692a4df2ae72a96a0451e5a4f8fcada0801e89fe8ee76f71c94df11ac8700e55
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: 692a4df2ae72a96a0451e5a4f8fcada0801e89fe8ee76f71c94df11ac8700e55
  • MD5: bfa37024a30ca58a0dbd28e59060d5a9

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: 692a4df2ae72a96a"
        threat_level = "medium"
        first_seen = "2026-05-08"
    condition:
        hash.sha256(0, filesize) == "692a4df2ae72a96a0451e5a4f8fcada0801e89fe8ee76f71c94df11ac8700e55"
}

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 692a4df2ae72a96a0451e5a4f8fcada0801e89fe8ee76f71c94df11ac8700e55 # MD5 bfa37024a30ca58a0dbd28e59060d5a9
TypeValueNote
sha256 692a4df2ae72a96a0451e5a4f8fcada0801e89fe8ee76f71c94df11ac8700e55 Sample:MassLogger
md5 bfa37024a30ca58a0dbd28e59060d5a9 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi