MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256f22663055f42b22470d694df88f5627858ea662eca3ad334b3b23867e20d7265
MD51e8ba2a57af7e38ab8b6e34f4a4b463d
File Typevbe
Size522.4 KB
First Seen2025-10-28
File Namerck88934.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: f22663055f42b22470d694df88f5627858ea662eca3ad334b3b23867e20d7265
  • MD5: 1e8ba2a57af7e38ab8b6e34f4a4b463d

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: f22663055f42b224"
        threat_level = "medium"
        first_seen = "2025-10-28"
    condition:
        hash.sha256(0, filesize) == "f22663055f42b22470d694df88f5627858ea662eca3ad334b3b23867e20d7265"
}

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 f22663055f42b22470d694df88f5627858ea662eca3ad334b3b23867e20d7265 # MD5 1e8ba2a57af7e38ab8b6e34f4a4b463d
TypeValueNote
sha256 f22663055f42b22470d694df88f5627858ea662eca3ad334b3b23867e20d7265 Sample:MassLogger
md5 1e8ba2a57af7e38ab8b6e34f4a4b463d Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi