MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA2565b00fb007aa5f32d3988915ca620dcd2b8b294ab6c15351f875bc51bc8d609a4
MD51f4b546cb16987441246068d9c2383ce
File Typezip
Size154.6 KB
First Seen2026-05-20
File NameDISPATCH_DOCS_ORDER_NO;_9300000370_-.zip
TagsMassLogger, zip

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: 5b00fb007aa5f32d3988915ca620dcd2b8b294ab6c15351f875bc51bc8d609a4
  • MD5: 1f4b546cb16987441246068d9c2383ce

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: 5b00fb007aa5f32d"
        threat_level = "medium"
        first_seen = "2026-05-20"
    condition:
        hash.sha256(0, filesize) == "5b00fb007aa5f32d3988915ca620dcd2b8b294ab6c15351f875bc51bc8d609a4"
}

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 5b00fb007aa5f32d3988915ca620dcd2b8b294ab6c15351f875bc51bc8d609a4 # MD5 1f4b546cb16987441246068d9c2383ce
TypeValueNote
sha256 5b00fb007aa5f32d3988915ca620dcd2b8b294ab6c15351f875bc51bc8d609a4 Sample:MassLogger
md5 1f4b546cb16987441246068d9c2383ce Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi