MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256eba40ba1697dda977da954e111df0bec1e3a80d0d207cb5c165f7415e7b83903
MD551bf7edff7bc07be8ce3a0da6d6f6b8b
File Typeexe
Size5622.5 KB
First Seen2025-11-19
File Namefile
Tagsdropped-by-amadey, exe, fbf543, MassLogger

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: eba40ba1697dda977da954e111df0bec1e3a80d0d207cb5c165f7415e7b83903
  • MD5: 51bf7edff7bc07be8ce3a0da6d6f6b8b

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: eba40ba1697dda97"
        threat_level = "medium"
        first_seen = "2025-11-19"
    condition:
        hash.sha256(0, filesize) == "eba40ba1697dda977da954e111df0bec1e3a80d0d207cb5c165f7415e7b83903"
}

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 eba40ba1697dda977da954e111df0bec1e3a80d0d207cb5c165f7415e7b83903 # MD5 51bf7edff7bc07be8ce3a0da6d6f6b8b
TypeValueNote
sha256 eba40ba1697dda977da954e111df0bec1e3a80d0d207cb5c165f7415e7b83903 Sample:MassLogger
md5 51bf7edff7bc07be8ce3a0da6d6f6b8b Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi