MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256aac30dd7294c585502696af1c75347505541a6d0afadd79c221ec0a5bf13ae98
MD5841526e0e8336f29033ad925b8cc1b8f
File Typevbe
Size967.1 KB
First Seen2025-07-19
File Namero990477632.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: aac30dd7294c585502696af1c75347505541a6d0afadd79c221ec0a5bf13ae98
  • MD5: 841526e0e8336f29033ad925b8cc1b8f

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: aac30dd7294c5855"
        threat_level = "medium"
        first_seen = "2025-07-19"
    condition:
        hash.sha256(0, filesize) == "aac30dd7294c585502696af1c75347505541a6d0afadd79c221ec0a5bf13ae98"
}

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 aac30dd7294c585502696af1c75347505541a6d0afadd79c221ec0a5bf13ae98 # MD5 841526e0e8336f29033ad925b8cc1b8f
TypeValueNote
sha256 aac30dd7294c585502696af1c75347505541a6d0afadd79c221ec0a5bf13ae98 Sample:MassLogger
md5 841526e0e8336f29033ad925b8cc1b8f Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi