MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256f72db500458ff81dcbb174c279744c60248947d068294d7a81881deb4be39d59
MD51bbf2f3e2e728da9dce9d4064fd69750
File Typevbe
Size726.1 KB
First Seen2025-06-12
File Namee-dekont.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: f72db500458ff81dcbb174c279744c60248947d068294d7a81881deb4be39d59
  • MD5: 1bbf2f3e2e728da9dce9d4064fd69750

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: f72db500458ff81d"
        threat_level = "medium"
        first_seen = "2025-06-12"
    condition:
        hash.sha256(0, filesize) == "f72db500458ff81dcbb174c279744c60248947d068294d7a81881deb4be39d59"
}

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 f72db500458ff81dcbb174c279744c60248947d068294d7a81881deb4be39d59 # MD5 1bbf2f3e2e728da9dce9d4064fd69750
TypeValueNote
sha256 f72db500458ff81dcbb174c279744c60248947d068294d7a81881deb4be39d59 Sample:MassLogger
md5 1bbf2f3e2e728da9dce9d4064fd69750 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi