MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256c47d92db7ed3cc5fdbb3296f3f4ab328cd8b66ac079f5bf658d4f2fa5f8a6af7
MD5e736c7a139cde5dc69ca4d8e2c9df78a
File Typejs
Size40.5 KB
First Seen2026-03-19
File Namenerdfwiqtwqhdgfrwt6fntdwrgonht.js
Tagsjs, 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: c47d92db7ed3cc5fdbb3296f3f4ab328cd8b66ac079f5bf658d4f2fa5f8a6af7
  • MD5: e736c7a139cde5dc69ca4d8e2c9df78a

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: c47d92db7ed3cc5f"
        threat_level = "medium"
        first_seen = "2026-03-19"
    condition:
        hash.sha256(0, filesize) == "c47d92db7ed3cc5fdbb3296f3f4ab328cd8b66ac079f5bf658d4f2fa5f8a6af7"
}

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 c47d92db7ed3cc5fdbb3296f3f4ab328cd8b66ac079f5bf658d4f2fa5f8a6af7 # MD5 e736c7a139cde5dc69ca4d8e2c9df78a
TypeValueNote
sha256 c47d92db7ed3cc5fdbb3296f3f4ab328cd8b66ac079f5bf658d4f2fa5f8a6af7 Sample:MassLogger
md5 e736c7a139cde5dc69ca4d8e2c9df78a Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi