MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA2562df35ad4bd0e0ba9d275b038bc95aeb8ae995bffa1cf33dc49f84b35d1ba829f
MD508b04d30c1a06190fef1e3a3a40d7dfd
File Typejs
Size777.7 KB
First Seen2026-03-24
File Name08b04d30c1a06190fef1e3a3a40d7dfd.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: 2df35ad4bd0e0ba9d275b038bc95aeb8ae995bffa1cf33dc49f84b35d1ba829f
  • MD5: 08b04d30c1a06190fef1e3a3a40d7dfd

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: 2df35ad4bd0e0ba9"
        threat_level = "medium"
        first_seen = "2026-03-24"
    condition:
        hash.sha256(0, filesize) == "2df35ad4bd0e0ba9d275b038bc95aeb8ae995bffa1cf33dc49f84b35d1ba829f"
}

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 2df35ad4bd0e0ba9d275b038bc95aeb8ae995bffa1cf33dc49f84b35d1ba829f # MD5 08b04d30c1a06190fef1e3a3a40d7dfd
TypeValueNote
sha256 2df35ad4bd0e0ba9d275b038bc95aeb8ae995bffa1cf33dc49f84b35d1ba829f Sample:MassLogger
md5 08b04d30c1a06190fef1e3a3a40d7dfd Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi