MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256085c51a932d70ca26f6c558f7c2b8b628f4128f6b209c230a2dde1823fba4a9c
MD5a790ffff1974c738cfe3219fe02a4f2b
File Typevbe
Size964.6 KB
First Seen2025-11-20
File Namerck599046.vbe
TagsMassLogger, vbe

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: 085c51a932d70ca26f6c558f7c2b8b628f4128f6b209c230a2dde1823fba4a9c
  • MD5: a790ffff1974c738cfe3219fe02a4f2b

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: 085c51a932d70ca2"
        threat_level = "medium"
        first_seen = "2025-11-20"
    condition:
        hash.sha256(0, filesize) == "085c51a932d70ca26f6c558f7c2b8b628f4128f6b209c230a2dde1823fba4a9c"
}

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 085c51a932d70ca26f6c558f7c2b8b628f4128f6b209c230a2dde1823fba4a9c # MD5 a790ffff1974c738cfe3219fe02a4f2b
TypeValueNote
sha256 085c51a932d70ca26f6c558f7c2b8b628f4128f6b209c230a2dde1823fba4a9c Sample:MassLogger
md5 a790ffff1974c738cfe3219fe02a4f2b Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi