MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256db20340ec14ba9f06684529efe9e9616938d049848eb6f627bef91018b08a8db
MD59d3c64cfb0a614b78e62b11131435ecc
File Typezip
Size82.9 KB
First Seen2026-04-09
File NameRequest-For-Quotation-0979-04-0480-PR-07889-2026.zip
TagsMassLogger, zip

Malware Family: MassLogger

MassLogger, email tabanlı keylogger'dır.

TypeInfostealer
Programming LanguageC#/.NET
Target PlatformWindows
C2 ProtocolSMTP/FTP
PurposeEmail keylogger
First Seen Year2020

Threat Indicators (IOC)

  • SHA256: db20340ec14ba9f06684529efe9e9616938d049848eb6f627bef91018b08a8db
  • MD5: 9d3c64cfb0a614b78e62b11131435ecc

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: db20340ec14ba9f0"
        threat_level = "medium"
        first_seen = "2026-04-09"
    condition:
        hash.sha256(0, filesize) == "db20340ec14ba9f06684529efe9e9616938d049848eb6f627bef91018b08a8db"
}

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 db20340ec14ba9f06684529efe9e9616938d049848eb6f627bef91018b08a8db # MD5 9d3c64cfb0a614b78e62b11131435ecc
TypeValueNote
sha256 db20340ec14ba9f06684529efe9e9616938d049848eb6f627bef91018b08a8db Sample:MassLogger
md5 9d3c64cfb0a614b78e62b11131435ecc Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi