MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA2567e3432eeefe91570948db274d03fe6e0e73afd31592f5ce7244ba000e9d816ce
MD5d3fe4942c16f07f67e1ff70b2d10fdb0
File Typevbs
Size1814.9 KB
First Seen2026-06-26
File NameRequest For Quotation. #IMESA.vbs
TagsMassLogger, vbs

Malware Family: MassLogger

MassLogger, email tabanlı keylogger'dır.

TypeInfostealer
Programming LanguageC#/.NET
Target PlatformWindows
C2 ProtocolSMTP/FTP
PurposeEmail keylogger
First Seen Year2020

Threat Indicators (IOC)

  • SHA256: 7e3432eeefe91570948db274d03fe6e0e73afd31592f5ce7244ba000e9d816ce
  • MD5: d3fe4942c16f07f67e1ff70b2d10fdb0

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: 7e3432eeefe91570"
        threat_level = "medium"
        first_seen = "2026-06-26"
    condition:
        hash.sha256(0, filesize) == "7e3432eeefe91570948db274d03fe6e0e73afd31592f5ce7244ba000e9d816ce"
}

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 7e3432eeefe91570948db274d03fe6e0e73afd31592f5ce7244ba000e9d816ce # MD5 d3fe4942c16f07f67e1ff70b2d10fdb0
TypeValueNote
sha256 7e3432eeefe91570948db274d03fe6e0e73afd31592f5ce7244ba000e9d816ce Sample:MassLogger
md5 d3fe4942c16f07f67e1ff70b2d10fdb0 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi