MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA2562606ae6c08a0928daea40db4f28c32e1056465bf31457c5bc3a106f5c445b18b
MD585688769656f714fc64a392e13736b48
File Typejs
Size3948.4 KB
First Seen2026-06-20
File NameRFQ-ALBA-0001468.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: 2606ae6c08a0928daea40db4f28c32e1056465bf31457c5bc3a106f5c445b18b
  • MD5: 85688769656f714fc64a392e13736b48

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: 2606ae6c08a0928d"
        threat_level = "medium"
        first_seen = "2026-06-20"
    condition:
        hash.sha256(0, filesize) == "2606ae6c08a0928daea40db4f28c32e1056465bf31457c5bc3a106f5c445b18b"
}

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 2606ae6c08a0928daea40db4f28c32e1056465bf31457c5bc3a106f5c445b18b # MD5 85688769656f714fc64a392e13736b48
TypeValueNote
sha256 2606ae6c08a0928daea40db4f28c32e1056465bf31457c5bc3a106f5c445b18b Sample:MassLogger
md5 85688769656f714fc64a392e13736b48 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi