MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA2562e5d6591997b3def9458d7047ecbfd657cc2284636bc29bcfbea7accb3912f4a
MD523bc67ac82aea0e36ebe593ecd5bdabc
File Typeexe
Size6.0 KB
First Seen2025-07-29
File Name2e5d6591997b3def9458d7047ecbfd657cc2284636bc29bcfbea7accb3912f4a
Tagsexe, MassLogger, wenawulus-xyz

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: 2e5d6591997b3def9458d7047ecbfd657cc2284636bc29bcfbea7accb3912f4a
  • MD5: 23bc67ac82aea0e36ebe593ecd5bdabc

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: 2e5d6591997b3def"
        threat_level = "medium"
        first_seen = "2025-07-29"
    condition:
        hash.sha256(0, filesize) == "2e5d6591997b3def9458d7047ecbfd657cc2284636bc29bcfbea7accb3912f4a"
}

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 2e5d6591997b3def9458d7047ecbfd657cc2284636bc29bcfbea7accb3912f4a # MD5 23bc67ac82aea0e36ebe593ecd5bdabc
TypeValueNote
sha256 2e5d6591997b3def9458d7047ecbfd657cc2284636bc29bcfbea7accb3912f4a Sample:MassLogger
md5 23bc67ac82aea0e36ebe593ecd5bdabc Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi