MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256424665f64a0552dc852e3f8774eae8950a2de260024f4b37a87ba275d3eb4674
MD50001e2722e67b3b433f17963b3790430
File Typevbe
Size967.2 KB
First Seen2025-07-04
File Namelight6645537.vbe
TagsMassLogger, vbe

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: 424665f64a0552dc852e3f8774eae8950a2de260024f4b37a87ba275d3eb4674
  • MD5: 0001e2722e67b3b433f17963b3790430

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: 424665f64a0552dc"
        threat_level = "medium"
        first_seen = "2025-07-04"
    condition:
        hash.sha256(0, filesize) == "424665f64a0552dc852e3f8774eae8950a2de260024f4b37a87ba275d3eb4674"
}

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 424665f64a0552dc852e3f8774eae8950a2de260024f4b37a87ba275d3eb4674 # MD5 0001e2722e67b3b433f17963b3790430
TypeValueNote
sha256 424665f64a0552dc852e3f8774eae8950a2de260024f4b37a87ba275d3eb4674 Sample:MassLogger
md5 0001e2722e67b3b433f17963b3790430 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi