MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256dced03cc9fb7c29f94aba5059f541c730b5cc50deff277f26b789c25f253c4a5
MD56081dbadfe516a0bd156931f7e8c3c85
File Typeexe
Size487.0 KB
First Seen2025-07-07
File Namedced03cc9fb7c29f94aba5059f541c730b5cc50deff277f26b789c25f253c4a5
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: dced03cc9fb7c29f94aba5059f541c730b5cc50deff277f26b789c25f253c4a5
  • MD5: 6081dbadfe516a0bd156931f7e8c3c85

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: dced03cc9fb7c29f"
        threat_level = "medium"
        first_seen = "2025-07-07"
    condition:
        hash.sha256(0, filesize) == "dced03cc9fb7c29f94aba5059f541c730b5cc50deff277f26b789c25f253c4a5"
}

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 dced03cc9fb7c29f94aba5059f541c730b5cc50deff277f26b789c25f253c4a5 # MD5 6081dbadfe516a0bd156931f7e8c3c85
TypeValueNote
sha256 dced03cc9fb7c29f94aba5059f541c730b5cc50deff277f26b789c25f253c4a5 Sample:MassLogger
md5 6081dbadfe516a0bd156931f7e8c3c85 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi