MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA2561f7315e324283f4b07b77e6e537f51ebf801f210f2780721a5c34468d1066ede
MD5fb9540718fbafb77b02c5f640f617c03
File Typejs
Size40.2 KB
First Seen2026-04-29
File NameEDIT PI-74625463.js
Tagsexe-in-archive, js, MassLogger, spamtrap

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: 1f7315e324283f4b07b77e6e537f51ebf801f210f2780721a5c34468d1066ede
  • MD5: fb9540718fbafb77b02c5f640f617c03

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: 1f7315e324283f4b"
        threat_level = "medium"
        first_seen = "2026-04-29"
    condition:
        hash.sha256(0, filesize) == "1f7315e324283f4b07b77e6e537f51ebf801f210f2780721a5c34468d1066ede"
}

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 1f7315e324283f4b07b77e6e537f51ebf801f210f2780721a5c34468d1066ede # MD5 fb9540718fbafb77b02c5f640f617c03
TypeValueNote
sha256 1f7315e324283f4b07b77e6e537f51ebf801f210f2780721a5c34468d1066ede Sample:MassLogger
md5 fb9540718fbafb77b02c5f640f617c03 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi