MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256d18cd5c7f0c8c89c461e897b405c628b77f85b2bf98b974b5609b986a5e08f7e
MD52624339a170c2c2c51efaa6e0bfd03a2
File Typevbe
Size975.0 KB
First Seen2025-08-11
File NameZiraat Bankasi Swift Mesaji.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: d18cd5c7f0c8c89c461e897b405c628b77f85b2bf98b974b5609b986a5e08f7e
  • MD5: 2624339a170c2c2c51efaa6e0bfd03a2

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: d18cd5c7f0c8c89c"
        threat_level = "medium"
        first_seen = "2025-08-11"
    condition:
        hash.sha256(0, filesize) == "d18cd5c7f0c8c89c461e897b405c628b77f85b2bf98b974b5609b986a5e08f7e"
}

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 d18cd5c7f0c8c89c461e897b405c628b77f85b2bf98b974b5609b986a5e08f7e # MD5 2624339a170c2c2c51efaa6e0bfd03a2
TypeValueNote
sha256 d18cd5c7f0c8c89c461e897b405c628b77f85b2bf98b974b5609b986a5e08f7e Sample:MassLogger
md5 2624339a170c2c2c51efaa6e0bfd03a2 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi