MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256aead3e1cb0db44b9594135a3a395c5d8e510bce1a0f938146df16a67d75a8e68
MD5dc98af797491b42155c3def43aef79fd
File Typeexe
Size747.5 KB
First Seen2025-09-10
File NamePurchase inquiry.exe
Tagsexe, 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: aead3e1cb0db44b9594135a3a395c5d8e510bce1a0f938146df16a67d75a8e68
  • MD5: dc98af797491b42155c3def43aef79fd

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: aead3e1cb0db44b9"
        threat_level = "medium"
        first_seen = "2025-09-10"
    condition:
        hash.sha256(0, filesize) == "aead3e1cb0db44b9594135a3a395c5d8e510bce1a0f938146df16a67d75a8e68"
}

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 aead3e1cb0db44b9594135a3a395c5d8e510bce1a0f938146df16a67d75a8e68 # MD5 dc98af797491b42155c3def43aef79fd
TypeValueNote
sha256 aead3e1cb0db44b9594135a3a395c5d8e510bce1a0f938146df16a67d75a8e68 Sample:MassLogger
md5 dc98af797491b42155c3def43aef79fd Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi