MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256dd79f49b1ea6c5e7f545e2752618fd71751c1ef33adb3fea3512e322bf8ed597
MD55d73dd5e43a5ead509673f62ceb14145
File Typeexe
Size1208.0 KB
First Seen2025-06-26
File NamerNewOrder20250626001.exe
Tagsexe, MassLogger, signed

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: dd79f49b1ea6c5e7f545e2752618fd71751c1ef33adb3fea3512e322bf8ed597
  • MD5: 5d73dd5e43a5ead509673f62ceb14145

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: dd79f49b1ea6c5e7"
        threat_level = "medium"
        first_seen = "2025-06-26"
    condition:
        hash.sha256(0, filesize) == "dd79f49b1ea6c5e7f545e2752618fd71751c1ef33adb3fea3512e322bf8ed597"
}

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 dd79f49b1ea6c5e7f545e2752618fd71751c1ef33adb3fea3512e322bf8ed597 # MD5 5d73dd5e43a5ead509673f62ceb14145
TypeValueNote
sha256 dd79f49b1ea6c5e7f545e2752618fd71751c1ef33adb3fea3512e322bf8ed597 Sample:MassLogger
md5 5d73dd5e43a5ead509673f62ceb14145 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi