MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA2562f68652403f2e9e9bb5e86fe9b9ef357fbd9974cb08d91f4755d8bd1adfcf7be
MD5f0af3a3f58dc756d022831e2481fd295
File Typeexe
Size641.0 KB
First Seen2025-08-12
File Name2f68652403f2e9e9bb5e86fe9b9ef357fbd9974cb08d91f4755d8bd1adfcf7be
Tagsexe, MassLogger

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: 2f68652403f2e9e9bb5e86fe9b9ef357fbd9974cb08d91f4755d8bd1adfcf7be
  • MD5: f0af3a3f58dc756d022831e2481fd295

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: 2f68652403f2e9e9"
        threat_level = "medium"
        first_seen = "2025-08-12"
    condition:
        hash.sha256(0, filesize) == "2f68652403f2e9e9bb5e86fe9b9ef357fbd9974cb08d91f4755d8bd1adfcf7be"
}

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 2f68652403f2e9e9bb5e86fe9b9ef357fbd9974cb08d91f4755d8bd1adfcf7be # MD5 f0af3a3f58dc756d022831e2481fd295
TypeValueNote
sha256 2f68652403f2e9e9bb5e86fe9b9ef357fbd9974cb08d91f4755d8bd1adfcf7be Sample:MassLogger
md5 f0af3a3f58dc756d022831e2481fd295 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi