MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA2563cc6a6eefacfb216b9941d31393c3d7efc7ac9ac12d172d866af04250f49bfe2
MD5deab9f549ec190eb3ab9e8e625f3d546
File Typeexe
Size874.5 KB
First Seen2026-06-08
File Name3cc6a6eefacfb216b9941d31393c3d7efc7ac9ac12d172d866af04250f49bfe2
Tagsexe, MassLogger

Malware Family: MassLogger

MassLogger, email tabanlı keylogger'dır.

TypeInfostealer
Programming LanguageC#/.NET
Target PlatformWindows
C2 ProtocolSMTP/FTP
PurposeEmail keylogger
First Seen Year2020

Threat Indicators (IOC)

  • SHA256: 3cc6a6eefacfb216b9941d31393c3d7efc7ac9ac12d172d866af04250f49bfe2
  • MD5: deab9f549ec190eb3ab9e8e625f3d546

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: 3cc6a6eefacfb216"
        threat_level = "medium"
        first_seen = "2026-06-08"
    condition:
        hash.sha256(0, filesize) == "3cc6a6eefacfb216b9941d31393c3d7efc7ac9ac12d172d866af04250f49bfe2"
}

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 3cc6a6eefacfb216b9941d31393c3d7efc7ac9ac12d172d866af04250f49bfe2 # MD5 deab9f549ec190eb3ab9e8e625f3d546
TypeValueNote
sha256 3cc6a6eefacfb216b9941d31393c3d7efc7ac9ac12d172d866af04250f49bfe2 Sample:MassLogger
md5 deab9f549ec190eb3ab9e8e625f3d546 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi