MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256a7bdab2286bade8325d6379938c78a841434f18092089d9487a80a89496548ad
MD57014c5a5e3917b6389e314615dc21f94
File Typeexe
Size1138.0 KB
First Seen2025-08-27
File NameSecuriteInfo.com.Win32.MalwareX-gen.91337615
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: a7bdab2286bade8325d6379938c78a841434f18092089d9487a80a89496548ad
  • MD5: 7014c5a5e3917b6389e314615dc21f94

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: a7bdab2286bade83"
        threat_level = "medium"
        first_seen = "2025-08-27"
    condition:
        hash.sha256(0, filesize) == "a7bdab2286bade8325d6379938c78a841434f18092089d9487a80a89496548ad"
}

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 a7bdab2286bade8325d6379938c78a841434f18092089d9487a80a89496548ad # MD5 7014c5a5e3917b6389e314615dc21f94
TypeValueNote
sha256 a7bdab2286bade8325d6379938c78a841434f18092089d9487a80a89496548ad Sample:MassLogger
md5 7014c5a5e3917b6389e314615dc21f94 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi