MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA25667463553753e10cbf8bb92c6a4d451740d8c0574ed69a128aecf5218c165a5c5
MD50d20299d667eec447b0167ee95d73041
File Typeexe
Size24.5 KB
First Seen2025-09-05
File Name67463553753e10cbf8bb92c6a4d451740d8c0574ed69a128aecf5218c165a5c5
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: 67463553753e10cbf8bb92c6a4d451740d8c0574ed69a128aecf5218c165a5c5
  • MD5: 0d20299d667eec447b0167ee95d73041

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: 67463553753e10cb"
        threat_level = "medium"
        first_seen = "2025-09-05"
    condition:
        hash.sha256(0, filesize) == "67463553753e10cbf8bb92c6a4d451740d8c0574ed69a128aecf5218c165a5c5"
}

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 67463553753e10cbf8bb92c6a4d451740d8c0574ed69a128aecf5218c165a5c5 # MD5 0d20299d667eec447b0167ee95d73041
TypeValueNote
sha256 67463553753e10cbf8bb92c6a4d451740d8c0574ed69a128aecf5218c165a5c5 Sample:MassLogger
md5 0d20299d667eec447b0167ee95d73041 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi