MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256a6daa74d4e70658eca504fab5a502d9162de8397e311bb2d8d5744f5d68d19ea
MD5c2367383d31198a2287726d9700563a1
File Typerar
Size719.1 KB
First Seen2026-05-20
File NameÜRÜNLERİN_ÇİZİMİ_VE_AÇIKLAMASI_PDF.z.rar
TagsMassLogger, rar

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: a6daa74d4e70658eca504fab5a502d9162de8397e311bb2d8d5744f5d68d19ea
  • MD5: c2367383d31198a2287726d9700563a1

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: a6daa74d4e70658e"
        threat_level = "medium"
        first_seen = "2026-05-20"
    condition:
        hash.sha256(0, filesize) == "a6daa74d4e70658eca504fab5a502d9162de8397e311bb2d8d5744f5d68d19ea"
}

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 a6daa74d4e70658eca504fab5a502d9162de8397e311bb2d8d5744f5d68d19ea # MD5 c2367383d31198a2287726d9700563a1
TypeValueNote
sha256 a6daa74d4e70658eca504fab5a502d9162de8397e311bb2d8d5744f5d68d19ea Sample:MassLogger
md5 c2367383d31198a2287726d9700563a1 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi