MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256e02df0d57d8056573650acbf45ee9fac3670c25e93740aabdeef21d5510804fb
MD5eeb2a4b4ece151e5a5aa4426a334d885
File Typeexe
Size745.5 KB
First Seen2025-06-10
File Namee02df0d57d8056573650acbf45ee9fac3670c25e93740aabdeef21d5510804fb
Tagsexe, MassLogger

Malware Family: MassLogger

MassLogger, email keylogger'dır.

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

Threat Indicators (IOC)

  • SHA256: e02df0d57d8056573650acbf45ee9fac3670c25e93740aabdeef21d5510804fb
  • MD5: eeb2a4b4ece151e5a5aa4426a334d885

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: e02df0d57d805657"
        threat_level = "medium"
        first_seen = "2025-06-10"
    condition:
        hash.sha256(0, filesize) == "e02df0d57d8056573650acbf45ee9fac3670c25e93740aabdeef21d5510804fb"
}

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 e02df0d57d8056573650acbf45ee9fac3670c25e93740aabdeef21d5510804fb # MD5 eeb2a4b4ece151e5a5aa4426a334d885
TypeValueNote
sha256 e02df0d57d8056573650acbf45ee9fac3670c25e93740aabdeef21d5510804fb Sample:MassLogger
md5 eeb2a4b4ece151e5a5aa4426a334d885 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi