MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256ea408f9698d88fbdb0073db26463a33d2ffef2d241126a918cf2184eeb1c76a8
MD53673bd0262c21548c2d4769bd8b9ff59
File Typevbe
Size1273.0 KB
First Seen2025-12-18
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: ea408f9698d88fbdb0073db26463a33d2ffef2d241126a918cf2184eeb1c76a8
  • MD5: 3673bd0262c21548c2d4769bd8b9ff59

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: ea408f9698d88fbd"
        threat_level = "medium"
        first_seen = "2025-12-18"
    condition:
        hash.sha256(0, filesize) == "ea408f9698d88fbdb0073db26463a33d2ffef2d241126a918cf2184eeb1c76a8"
}

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 ea408f9698d88fbdb0073db26463a33d2ffef2d241126a918cf2184eeb1c76a8 # MD5 3673bd0262c21548c2d4769bd8b9ff59
TypeValueNote
sha256 ea408f9698d88fbdb0073db26463a33d2ffef2d241126a918cf2184eeb1c76a8 Sample:MassLogger
md5 3673bd0262c21548c2d4769bd8b9ff59 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi