MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA2561102be281ceadcc5966ddd8ed9fb1fe436d920bbfcd376dd9ba252ab03d84c7b
MD5340a59f4e8e897c09780ac71ad3f3058
File Typeexe
Size766.0 KB
First Seen2025-08-25
File NameSecuriteInfo.com.Trojan.PackedNET.3390.30519.5514
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: 1102be281ceadcc5966ddd8ed9fb1fe436d920bbfcd376dd9ba252ab03d84c7b
  • MD5: 340a59f4e8e897c09780ac71ad3f3058

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: 1102be281ceadcc5"
        threat_level = "medium"
        first_seen = "2025-08-25"
    condition:
        hash.sha256(0, filesize) == "1102be281ceadcc5966ddd8ed9fb1fe436d920bbfcd376dd9ba252ab03d84c7b"
}

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 1102be281ceadcc5966ddd8ed9fb1fe436d920bbfcd376dd9ba252ab03d84c7b # MD5 340a59f4e8e897c09780ac71ad3f3058
TypeValueNote
sha256 1102be281ceadcc5966ddd8ed9fb1fe436d920bbfcd376dd9ba252ab03d84c7b Sample:MassLogger
md5 340a59f4e8e897c09780ac71ad3f3058 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi