MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA25634aafa6b2eaad03352ce67a2a1520bdc217e1a1ec8c35aad16c09577cb6d7204
MD5646527a8c028b53c184c86a1ca2cfd12
File Typevbe
Size414.1 KB
First Seen2026-06-08
File NameRFQ 6200839416.vbe
TagsMassLogger, MassLoggerRAT, vbe

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: 34aafa6b2eaad03352ce67a2a1520bdc217e1a1ec8c35aad16c09577cb6d7204
  • MD5: 646527a8c028b53c184c86a1ca2cfd12

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: 34aafa6b2eaad033"
        threat_level = "medium"
        first_seen = "2026-06-08"
    condition:
        hash.sha256(0, filesize) == "34aafa6b2eaad03352ce67a2a1520bdc217e1a1ec8c35aad16c09577cb6d7204"
}

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 34aafa6b2eaad03352ce67a2a1520bdc217e1a1ec8c35aad16c09577cb6d7204 # MD5 646527a8c028b53c184c86a1ca2cfd12
TypeValueNote
sha256 34aafa6b2eaad03352ce67a2a1520bdc217e1a1ec8c35aad16c09577cb6d7204 Sample:MassLogger
md5 646527a8c028b53c184c86a1ca2cfd12 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi