MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256dc8856f9b6ef81442715fa7dc861932df7c99bc43e9377d712927bf0ba874357
MD514d2307758a443f603dcec492c08d1fc
File Typeexe
Size661.0 KB
First Seen2025-10-07
File NameSecuriteInfo.com.Trojan.PWS.Siggen3.41708.29422.4778
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: dc8856f9b6ef81442715fa7dc861932df7c99bc43e9377d712927bf0ba874357
  • MD5: 14d2307758a443f603dcec492c08d1fc

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: dc8856f9b6ef8144"
        threat_level = "medium"
        first_seen = "2025-10-07"
    condition:
        hash.sha256(0, filesize) == "dc8856f9b6ef81442715fa7dc861932df7c99bc43e9377d712927bf0ba874357"
}

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 dc8856f9b6ef81442715fa7dc861932df7c99bc43e9377d712927bf0ba874357 # MD5 14d2307758a443f603dcec492c08d1fc
TypeValueNote
sha256 dc8856f9b6ef81442715fa7dc861932df7c99bc43e9377d712927bf0ba874357 Sample:MassLogger
md5 14d2307758a443f603dcec492c08d1fc Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi