MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256eded71b9f21817a67c4aa37f0a6737d7bec1d7a4d8090155e1b752356ecf26d6
MD51f79ad71681dad736354fb6f13f901fd
File Typerar
Size508.3 KB
First Seen2026-05-20
File NameSİPARİŞ_ONAY_İSTEĞİ_xlsx.z.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: eded71b9f21817a67c4aa37f0a6737d7bec1d7a4d8090155e1b752356ecf26d6
  • MD5: 1f79ad71681dad736354fb6f13f901fd

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: eded71b9f21817a6"
        threat_level = "medium"
        first_seen = "2026-05-20"
    condition:
        hash.sha256(0, filesize) == "eded71b9f21817a67c4aa37f0a6737d7bec1d7a4d8090155e1b752356ecf26d6"
}

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 eded71b9f21817a67c4aa37f0a6737d7bec1d7a4d8090155e1b752356ecf26d6 # MD5 1f79ad71681dad736354fb6f13f901fd
TypeValueNote
sha256 eded71b9f21817a67c4aa37f0a6737d7bec1d7a4d8090155e1b752356ecf26d6 Sample:MassLogger
md5 1f79ad71681dad736354fb6f13f901fd Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi