MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256f2e915d0af84fac485aa75a01f5577d19f5a2c60316d573842161af5578fee2e
MD572599e617a5f744392a22b34cb6dc486
File Typevbe
Size975.0 KB
First Seen2025-08-11
File Namerrcck8965.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: f2e915d0af84fac485aa75a01f5577d19f5a2c60316d573842161af5578fee2e
  • MD5: 72599e617a5f744392a22b34cb6dc486

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: f2e915d0af84fac4"
        threat_level = "medium"
        first_seen = "2025-08-11"
    condition:
        hash.sha256(0, filesize) == "f2e915d0af84fac485aa75a01f5577d19f5a2c60316d573842161af5578fee2e"
}

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 f2e915d0af84fac485aa75a01f5577d19f5a2c60316d573842161af5578fee2e # MD5 72599e617a5f744392a22b34cb6dc486
TypeValueNote
sha256 f2e915d0af84fac485aa75a01f5577d19f5a2c60316d573842161af5578fee2e Sample:MassLogger
md5 72599e617a5f744392a22b34cb6dc486 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi