MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA2565fd4a1c68329376ab4059870c941281a29a5e7884dcfffd9a402f639d5d0fbda
MD5cece5d54b59c72a0b90cafdb3b449e0f
File Typebat
Size83.7 KB
First Seen2026-05-20
File NameDGe2tehVrNmfDn.bat
Tagsbat, MassLogger

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: 5fd4a1c68329376ab4059870c941281a29a5e7884dcfffd9a402f639d5d0fbda
  • MD5: cece5d54b59c72a0b90cafdb3b449e0f

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: 5fd4a1c68329376a"
        threat_level = "medium"
        first_seen = "2026-05-20"
    condition:
        hash.sha256(0, filesize) == "5fd4a1c68329376ab4059870c941281a29a5e7884dcfffd9a402f639d5d0fbda"
}

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 5fd4a1c68329376ab4059870c941281a29a5e7884dcfffd9a402f639d5d0fbda # MD5 cece5d54b59c72a0b90cafdb3b449e0f
TypeValueNote
sha256 5fd4a1c68329376ab4059870c941281a29a5e7884dcfffd9a402f639d5d0fbda Sample:MassLogger
md5 cece5d54b59c72a0b90cafdb3b449e0f Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi