MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256470907083fd04027fa3130523cac3771e0429974ae4a76742b3c2dabb59d203e
MD5ad10e033cf3d29b7dab50f4a9d83b50a
File Typerar
Size527.9 KB
First Seen2026-05-20
File NameFedEx_AWB#X78810016390-pdf.rar
TagsMassLogger, rar

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: 470907083fd04027fa3130523cac3771e0429974ae4a76742b3c2dabb59d203e
  • MD5: ad10e033cf3d29b7dab50f4a9d83b50a

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: 470907083fd04027"
        threat_level = "medium"
        first_seen = "2026-05-20"
    condition:
        hash.sha256(0, filesize) == "470907083fd04027fa3130523cac3771e0429974ae4a76742b3c2dabb59d203e"
}

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 470907083fd04027fa3130523cac3771e0429974ae4a76742b3c2dabb59d203e # MD5 ad10e033cf3d29b7dab50f4a9d83b50a
TypeValueNote
sha256 470907083fd04027fa3130523cac3771e0429974ae4a76742b3c2dabb59d203e Sample:MassLogger
md5 ad10e033cf3d29b7dab50f4a9d83b50a Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi