MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256464de5b3b675b8c9736456a1495cb066c01b2c1c7ef1e9a3fea1a0764f1a3276
MD5dcc82780b8d4c3fb7eb8df929df89db1
File Typevbs
Size1125.0 KB
First Seen2026-02-24
File Namedoc069036785490.pdf.vbs
TagsMassLogger, vbs

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: 464de5b3b675b8c9736456a1495cb066c01b2c1c7ef1e9a3fea1a0764f1a3276
  • MD5: dcc82780b8d4c3fb7eb8df929df89db1

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: 464de5b3b675b8c9"
        threat_level = "medium"
        first_seen = "2026-02-24"
    condition:
        hash.sha256(0, filesize) == "464de5b3b675b8c9736456a1495cb066c01b2c1c7ef1e9a3fea1a0764f1a3276"
}

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 464de5b3b675b8c9736456a1495cb066c01b2c1c7ef1e9a3fea1a0764f1a3276 # MD5 dcc82780b8d4c3fb7eb8df929df89db1
TypeValueNote
sha256 464de5b3b675b8c9736456a1495cb066c01b2c1c7ef1e9a3fea1a0764f1a3276 Sample:MassLogger
md5 dcc82780b8d4c3fb7eb8df929df89db1 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi