MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA2562bd3cff3cc1267f461bc562a1f9c61f1d9780d015cf17ff8005c03c1aa9839f8
MD53ed2f53ec379595736529f36fdf0f416
File Typevbe
Size967.1 KB
First Seen2025-07-12
File NameDEKONT.pdf.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: 2bd3cff3cc1267f461bc562a1f9c61f1d9780d015cf17ff8005c03c1aa9839f8
  • MD5: 3ed2f53ec379595736529f36fdf0f416

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: 2bd3cff3cc1267f4"
        threat_level = "medium"
        first_seen = "2025-07-12"
    condition:
        hash.sha256(0, filesize) == "2bd3cff3cc1267f461bc562a1f9c61f1d9780d015cf17ff8005c03c1aa9839f8"
}

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 2bd3cff3cc1267f461bc562a1f9c61f1d9780d015cf17ff8005c03c1aa9839f8 # MD5 3ed2f53ec379595736529f36fdf0f416
TypeValueNote
sha256 2bd3cff3cc1267f461bc562a1f9c61f1d9780d015cf17ff8005c03c1aa9839f8 Sample:MassLogger
md5 3ed2f53ec379595736529f36fdf0f416 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi