MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256d227730415cd9ceab9f40d357cbc1660af782d35a6a4b22ed0a40a32ed829fa0
MD5da53e62bfec03996a1c04fc4091ef8c5
File Typerar
Size472.9 KB
First Seen2026-05-20
File NameMinutesXofXMeeting.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: d227730415cd9ceab9f40d357cbc1660af782d35a6a4b22ed0a40a32ed829fa0
  • MD5: da53e62bfec03996a1c04fc4091ef8c5

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: d227730415cd9cea"
        threat_level = "medium"
        first_seen = "2026-05-20"
    condition:
        hash.sha256(0, filesize) == "d227730415cd9ceab9f40d357cbc1660af782d35a6a4b22ed0a40a32ed829fa0"
}

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 d227730415cd9ceab9f40d357cbc1660af782d35a6a4b22ed0a40a32ed829fa0 # MD5 da53e62bfec03996a1c04fc4091ef8c5
TypeValueNote
sha256 d227730415cd9ceab9f40d357cbc1660af782d35a6a4b22ed0a40a32ed829fa0 Sample:MassLogger
md5 da53e62bfec03996a1c04fc4091ef8c5 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi