MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256c467f98b65a67517e84843b671fa70ad1cfd15d478fff99934d2b9f0d8372883
MD5896b206156da8f60084b7ab9b8b86b97
File Typejs
Size2177.9 KB
First Seen2026-06-05
File NamePO-2606-02.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: c467f98b65a67517e84843b671fa70ad1cfd15d478fff99934d2b9f0d8372883
  • MD5: 896b206156da8f60084b7ab9b8b86b97

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: c467f98b65a67517"
        threat_level = "medium"
        first_seen = "2026-06-05"
    condition:
        hash.sha256(0, filesize) == "c467f98b65a67517e84843b671fa70ad1cfd15d478fff99934d2b9f0d8372883"
}

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 c467f98b65a67517e84843b671fa70ad1cfd15d478fff99934d2b9f0d8372883 # MD5 896b206156da8f60084b7ab9b8b86b97
TypeValueNote
sha256 c467f98b65a67517e84843b671fa70ad1cfd15d478fff99934d2b9f0d8372883 Sample:MassLogger
md5 896b206156da8f60084b7ab9b8b86b97 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi