MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA2563802eb81a756b854a51788f7f1bdb7fbfad556a17393ec9725ac09a1c90ce045
MD568b9408bf0d8c98da7993e92028b48ad
File Typeexe
Size847.0 KB
First Seen2026-05-08
File Name3802eb81a756b854a51788f7f1bdb7fbfad556a17393ec9725ac09a1c90ce045
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: 3802eb81a756b854a51788f7f1bdb7fbfad556a17393ec9725ac09a1c90ce045
  • MD5: 68b9408bf0d8c98da7993e92028b48ad

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: 3802eb81a756b854"
        threat_level = "medium"
        first_seen = "2026-05-08"
    condition:
        hash.sha256(0, filesize) == "3802eb81a756b854a51788f7f1bdb7fbfad556a17393ec9725ac09a1c90ce045"
}

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 3802eb81a756b854a51788f7f1bdb7fbfad556a17393ec9725ac09a1c90ce045 # MD5 68b9408bf0d8c98da7993e92028b48ad
TypeValueNote
sha256 3802eb81a756b854a51788f7f1bdb7fbfad556a17393ec9725ac09a1c90ce045 Sample:MassLogger
md5 68b9408bf0d8c98da7993e92028b48ad Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi