MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256a11a048b50d43aa370ae9f6f68f8bfc76824a6f1fee255263a13f7bc5169a819
MD5d68432720ad3466dee056ce3ae44da00
File Typehta
Size2741.3 KB
First Seen2026-05-28
File NameQUOTE-058-2026.pdf.hta
Tagshta, MassLogger

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: a11a048b50d43aa370ae9f6f68f8bfc76824a6f1fee255263a13f7bc5169a819
  • MD5: d68432720ad3466dee056ce3ae44da00

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: a11a048b50d43aa3"
        threat_level = "medium"
        first_seen = "2026-05-28"
    condition:
        hash.sha256(0, filesize) == "a11a048b50d43aa370ae9f6f68f8bfc76824a6f1fee255263a13f7bc5169a819"
}

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 a11a048b50d43aa370ae9f6f68f8bfc76824a6f1fee255263a13f7bc5169a819 # MD5 d68432720ad3466dee056ce3ae44da00
TypeValueNote
sha256 a11a048b50d43aa370ae9f6f68f8bfc76824a6f1fee255263a13f7bc5169a819 Sample:MassLogger
md5 d68432720ad3466dee056ce3ae44da00 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi