MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA2569dee1f01f62ac121f05da0afd753e25ff3e832d5c75b516b8d8fef92b675d209
MD528184d3d643aa611dda323b40261306b
File Typeexe
Size1216.5 KB
First Seen2026-04-15
File NameSecuriteInfo.com.Trojan.Inject5.25835.22695.12487
Tagsexe, 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: 9dee1f01f62ac121f05da0afd753e25ff3e832d5c75b516b8d8fef92b675d209
  • MD5: 28184d3d643aa611dda323b40261306b

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: 9dee1f01f62ac121"
        threat_level = "medium"
        first_seen = "2026-04-15"
    condition:
        hash.sha256(0, filesize) == "9dee1f01f62ac121f05da0afd753e25ff3e832d5c75b516b8d8fef92b675d209"
}

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 9dee1f01f62ac121f05da0afd753e25ff3e832d5c75b516b8d8fef92b675d209 # MD5 28184d3d643aa611dda323b40261306b
TypeValueNote
sha256 9dee1f01f62ac121f05da0afd753e25ff3e832d5c75b516b8d8fef92b675d209 Sample:MassLogger
md5 28184d3d643aa611dda323b40261306b Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi