MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256feaafc430cbfc58b0c01d2ac3fe9e65004dfd1134b91134affe10ac1e58653de
MD563a64a7f78e3f7b04c52808c6413c538
File Typeps1
Size1500.0 KB
First Seen2025-09-24
File Namefeaafc430cbfc58b0c01d2ac3fe9e65004dfd1134b91134affe10ac1e58653de.ps1
Tags45-141-87-195, MassLogger, ps1, Telegram

Malware Family: MassLogger

MassLogger, email keylogger'dır.

TypeInfostealer
Programming LanguageC#/.NET
Target PlatformWindows
C2 ProtocolSMTP/FTP
PurposeEmail keylogger
First Seen Year2020

Threat Indicators (IOC)

  • SHA256: feaafc430cbfc58b0c01d2ac3fe9e65004dfd1134b91134affe10ac1e58653de
  • MD5: 63a64a7f78e3f7b04c52808c6413c538

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: feaafc430cbfc58b"
        threat_level = "medium"
        first_seen = "2025-09-24"
    condition:
        hash.sha256(0, filesize) == "feaafc430cbfc58b0c01d2ac3fe9e65004dfd1134b91134affe10ac1e58653de"
}

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 feaafc430cbfc58b0c01d2ac3fe9e65004dfd1134b91134affe10ac1e58653de # MD5 63a64a7f78e3f7b04c52808c6413c538
TypeValueNote
sha256 feaafc430cbfc58b0c01d2ac3fe9e65004dfd1134b91134affe10ac1e58653de Sample:MassLogger
md5 63a64a7f78e3f7b04c52808c6413c538 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi