MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA2566e729e941c91668a9b51c64387cba18ed5ceeb1006c710b5e8ac79e78b261b4f
MD5786324552c72b6f64271468df65ec1f6
File Typevbe
Size825.5 KB
First Seen2025-06-23
File Namemmo89076.pdf.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: 6e729e941c91668a9b51c64387cba18ed5ceeb1006c710b5e8ac79e78b261b4f
  • MD5: 786324552c72b6f64271468df65ec1f6

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: 6e729e941c91668a"
        threat_level = "medium"
        first_seen = "2025-06-23"
    condition:
        hash.sha256(0, filesize) == "6e729e941c91668a9b51c64387cba18ed5ceeb1006c710b5e8ac79e78b261b4f"
}

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 6e729e941c91668a9b51c64387cba18ed5ceeb1006c710b5e8ac79e78b261b4f # MD5 786324552c72b6f64271468df65ec1f6
TypeValueNote
sha256 6e729e941c91668a9b51c64387cba18ed5ceeb1006c710b5e8ac79e78b261b4f Sample:MassLogger
md5 786324552c72b6f64271468df65ec1f6 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi