MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA25675ae2f35282a14163c9d996e040267853e5b4a93d9044983a282a78a4f0a99dc
MD5c84ff6417fdd4b17441fa21cd9369561
File Typevbe
Size522.5 KB
First Seen2025-10-28
File Namee-dekont.html.VBE
Tagsgeo, MassLogger, TUR, 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: 75ae2f35282a14163c9d996e040267853e5b4a93d9044983a282a78a4f0a99dc
  • MD5: c84ff6417fdd4b17441fa21cd9369561

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: 75ae2f35282a1416"
        threat_level = "medium"
        first_seen = "2025-10-28"
    condition:
        hash.sha256(0, filesize) == "75ae2f35282a14163c9d996e040267853e5b4a93d9044983a282a78a4f0a99dc"
}

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 75ae2f35282a14163c9d996e040267853e5b4a93d9044983a282a78a4f0a99dc # MD5 c84ff6417fdd4b17441fa21cd9369561
TypeValueNote
sha256 75ae2f35282a14163c9d996e040267853e5b4a93d9044983a282a78a4f0a99dc Sample:MassLogger
md5 c84ff6417fdd4b17441fa21cd9369561 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi