MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256d53a8e25425bfce9928d63c77e6287d61fda5874f4ebc3a216c6330354a5eb53
MD5dbf68b8376018f2d836c990eb8972c4b
File Typevbe
Size967.1 KB
First Seen2025-07-16
File Namemmo885432.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: d53a8e25425bfce9928d63c77e6287d61fda5874f4ebc3a216c6330354a5eb53
  • MD5: dbf68b8376018f2d836c990eb8972c4b

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: d53a8e25425bfce9"
        threat_level = "medium"
        first_seen = "2025-07-16"
    condition:
        hash.sha256(0, filesize) == "d53a8e25425bfce9928d63c77e6287d61fda5874f4ebc3a216c6330354a5eb53"
}

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 d53a8e25425bfce9928d63c77e6287d61fda5874f4ebc3a216c6330354a5eb53 # MD5 dbf68b8376018f2d836c990eb8972c4b
TypeValueNote
sha256 d53a8e25425bfce9928d63c77e6287d61fda5874f4ebc3a216c6330354a5eb53 Sample:MassLogger
md5 dbf68b8376018f2d836c990eb8972c4b Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi