MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256ff073aa55a06e3bebaf00eb6ddb92061e2a37ecd59b6c4f3a244b75c486e2311
MD59f3e28617b444110b1e535394a632d0c
File Typeexe
Size951.5 KB
First Seen2026-04-28
File NameFiyat Teklif Talebi-DUYGUGROUP PDF.exe
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: ff073aa55a06e3bebaf00eb6ddb92061e2a37ecd59b6c4f3a244b75c486e2311
  • MD5: 9f3e28617b444110b1e535394a632d0c

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: ff073aa55a06e3be"
        threat_level = "medium"
        first_seen = "2026-04-28"
    condition:
        hash.sha256(0, filesize) == "ff073aa55a06e3bebaf00eb6ddb92061e2a37ecd59b6c4f3a244b75c486e2311"
}

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 ff073aa55a06e3bebaf00eb6ddb92061e2a37ecd59b6c4f3a244b75c486e2311 # MD5 9f3e28617b444110b1e535394a632d0c
TypeValueNote
sha256 ff073aa55a06e3bebaf00eb6ddb92061e2a37ecd59b6c4f3a244b75c486e2311 Sample:MassLogger
md5 9f3e28617b444110b1e535394a632d0c Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi