MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA25656dd5e30024791d0240babaf7110454704ecaa0936bdde1c7a3e626b89a6c7cb
MD52ee75ce969ac9a09efbdb9372121cb56
File Typeexe
Size723.5 KB
First Seen2025-06-24
File NameDHL Air Waybill #6829451400383-PDF.exe
TagsDHL, exe, MassLogger

Malware Family: MassLogger

MassLogger, email keylogger'dır.

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

Threat Indicators (IOC)

  • SHA256: 56dd5e30024791d0240babaf7110454704ecaa0936bdde1c7a3e626b89a6c7cb
  • MD5: 2ee75ce969ac9a09efbdb9372121cb56

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: 56dd5e30024791d0"
        threat_level = "medium"
        first_seen = "2025-06-24"
    condition:
        hash.sha256(0, filesize) == "56dd5e30024791d0240babaf7110454704ecaa0936bdde1c7a3e626b89a6c7cb"
}

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 56dd5e30024791d0240babaf7110454704ecaa0936bdde1c7a3e626b89a6c7cb # MD5 2ee75ce969ac9a09efbdb9372121cb56
TypeValueNote
sha256 56dd5e30024791d0240babaf7110454704ecaa0936bdde1c7a3e626b89a6c7cb Sample:MassLogger
md5 2ee75ce969ac9a09efbdb9372121cb56 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi