MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA25606602b2ac3758c447ecfd08cc6796b6d00ce48318898251f340a8a7bb6c2fc13
MD58c061b51be84c9a9bc48e6fa52a36143
File Typetar
Size422.5 KB
First Seen2025-09-24
File NameBper Banca_Copia del Pagamento.pdf.tar
TagsBPERBanca, MassLogger, Spam-ITA, tar, 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: 06602b2ac3758c447ecfd08cc6796b6d00ce48318898251f340a8a7bb6c2fc13
  • MD5: 8c061b51be84c9a9bc48e6fa52a36143

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: 06602b2ac3758c44"
        threat_level = "medium"
        first_seen = "2025-09-24"
    condition:
        hash.sha256(0, filesize) == "06602b2ac3758c447ecfd08cc6796b6d00ce48318898251f340a8a7bb6c2fc13"
}

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 06602b2ac3758c447ecfd08cc6796b6d00ce48318898251f340a8a7bb6c2fc13 # MD5 8c061b51be84c9a9bc48e6fa52a36143
TypeValueNote
sha256 06602b2ac3758c447ecfd08cc6796b6d00ce48318898251f340a8a7bb6c2fc13 Sample:MassLogger
md5 8c061b51be84c9a9bc48e6fa52a36143 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi