MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256482c74427a5066da2bc67cf230c3260d21e4e6646866696b053a6b2619eb7663
MD57b917d34596cc8d0abfec78d04ca0610
File Typeexe
Size859.8 KB
First Seen2025-12-08
File Name482c74427a5066da2bc67cf230c3260d21e4e6646866696b053a6b2619eb7663
Tagsexe, MassLogger, signed

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: 482c74427a5066da2bc67cf230c3260d21e4e6646866696b053a6b2619eb7663
  • MD5: 7b917d34596cc8d0abfec78d04ca0610

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: 482c74427a5066da"
        threat_level = "medium"
        first_seen = "2025-12-08"
    condition:
        hash.sha256(0, filesize) == "482c74427a5066da2bc67cf230c3260d21e4e6646866696b053a6b2619eb7663"
}

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 482c74427a5066da2bc67cf230c3260d21e4e6646866696b053a6b2619eb7663 # MD5 7b917d34596cc8d0abfec78d04ca0610
TypeValueNote
sha256 482c74427a5066da2bc67cf230c3260d21e4e6646866696b053a6b2619eb7663 Sample:MassLogger
md5 7b917d34596cc8d0abfec78d04ca0610 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi