MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA25605ce872883d57da40ff8c1f41b13ba940624ce7754552ef995cb19753830c31a
MD5f9b24184ee4676c6ec90cac81a013742
File Typevbe
Size976.6 KB
First Seen2025-07-26
File NameQ5464MMG50061-v3.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: 05ce872883d57da40ff8c1f41b13ba940624ce7754552ef995cb19753830c31a
  • MD5: f9b24184ee4676c6ec90cac81a013742

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: 05ce872883d57da4"
        threat_level = "medium"
        first_seen = "2025-07-26"
    condition:
        hash.sha256(0, filesize) == "05ce872883d57da40ff8c1f41b13ba940624ce7754552ef995cb19753830c31a"
}

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 05ce872883d57da40ff8c1f41b13ba940624ce7754552ef995cb19753830c31a # MD5 f9b24184ee4676c6ec90cac81a013742
TypeValueNote
sha256 05ce872883d57da40ff8c1f41b13ba940624ce7754552ef995cb19753830c31a Sample:MassLogger
md5 f9b24184ee4676c6ec90cac81a013742 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi