MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA25648dc460265095f3f71f79ba3c63318046dc4eb42ac66f10fd89fa9faa89c6959
MD5921560e99875c88b57b1509800777e5f
File Typevbe
Size961.5 KB
First Seen2025-11-13
File Namerrck9908.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: 48dc460265095f3f71f79ba3c63318046dc4eb42ac66f10fd89fa9faa89c6959
  • MD5: 921560e99875c88b57b1509800777e5f

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: 48dc460265095f3f"
        threat_level = "medium"
        first_seen = "2025-11-13"
    condition:
        hash.sha256(0, filesize) == "48dc460265095f3f71f79ba3c63318046dc4eb42ac66f10fd89fa9faa89c6959"
}

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 48dc460265095f3f71f79ba3c63318046dc4eb42ac66f10fd89fa9faa89c6959 # MD5 921560e99875c88b57b1509800777e5f
TypeValueNote
sha256 48dc460265095f3f71f79ba3c63318046dc4eb42ac66f10fd89fa9faa89c6959 Sample:MassLogger
md5 921560e99875c88b57b1509800777e5f Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi