MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256eade91a91cfb37da846b62e7b1d25060446ebffaa32f119b844276c0bb28b5ff
MD5109629865dd86464ea1b87dcb1b3f243
File Typeexe
Size812.5 KB
First Seen2025-06-10
File Nameeade91a91cfb37da846b62e7b1d25060446ebffaa32f119b844276c0bb28b5ff
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: eade91a91cfb37da846b62e7b1d25060446ebffaa32f119b844276c0bb28b5ff
  • MD5: 109629865dd86464ea1b87dcb1b3f243

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: eade91a91cfb37da"
        threat_level = "medium"
        first_seen = "2025-06-10"
    condition:
        hash.sha256(0, filesize) == "eade91a91cfb37da846b62e7b1d25060446ebffaa32f119b844276c0bb28b5ff"
}

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 eade91a91cfb37da846b62e7b1d25060446ebffaa32f119b844276c0bb28b5ff # MD5 109629865dd86464ea1b87dcb1b3f243
TypeValueNote
sha256 eade91a91cfb37da846b62e7b1d25060446ebffaa32f119b844276c0bb28b5ff Sample:MassLogger
md5 109629865dd86464ea1b87dcb1b3f243 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi