MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA2560dd31a072dcdbea17bbc5f70f034e7a65883b133117e3c81d539f4cbd0b96c13
MD5e3ce84950e5185390ab5a5965335c80f
File Typerar
Size482.0 KB
First Seen2025-09-25
File NameBL7258264260.rar
TagsMassLogger, rar

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: 0dd31a072dcdbea17bbc5f70f034e7a65883b133117e3c81d539f4cbd0b96c13
  • MD5: e3ce84950e5185390ab5a5965335c80f

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: 0dd31a072dcdbea1"
        threat_level = "medium"
        first_seen = "2025-09-25"
    condition:
        hash.sha256(0, filesize) == "0dd31a072dcdbea17bbc5f70f034e7a65883b133117e3c81d539f4cbd0b96c13"
}

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 0dd31a072dcdbea17bbc5f70f034e7a65883b133117e3c81d539f4cbd0b96c13 # MD5 e3ce84950e5185390ab5a5965335c80f
TypeValueNote
sha256 0dd31a072dcdbea17bbc5f70f034e7a65883b133117e3c81d539f4cbd0b96c13 Sample:MassLogger
md5 e3ce84950e5185390ab5a5965335c80f Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi