MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA2567693bac5a927633eff56819ee7ab55dea7d03c2b25286b335380b2afa053fff5
MD5ddc6955b091570bfa37bcfa909e39121
File Typeexe
Size737.0 KB
First Seen2025-12-08
File Name7693bac5a927633eff56819ee7ab55dea7d03c2b25286b335380b2afa053fff5
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: 7693bac5a927633eff56819ee7ab55dea7d03c2b25286b335380b2afa053fff5
  • MD5: ddc6955b091570bfa37bcfa909e39121

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: 7693bac5a927633e"
        threat_level = "medium"
        first_seen = "2025-12-08"
    condition:
        hash.sha256(0, filesize) == "7693bac5a927633eff56819ee7ab55dea7d03c2b25286b335380b2afa053fff5"
}

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 7693bac5a927633eff56819ee7ab55dea7d03c2b25286b335380b2afa053fff5 # MD5 ddc6955b091570bfa37bcfa909e39121
TypeValueNote
sha256 7693bac5a927633eff56819ee7ab55dea7d03c2b25286b335380b2afa053fff5 Sample:MassLogger
md5 ddc6955b091570bfa37bcfa909e39121 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi