MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256968416f33911ac6dbdf52a31009d85d954bd3ad3d13aa73bf52d4731c2efa768
MD50c1cc4ae6cca523c7b50fac69874e5ba
File Typehta
Size2448.7 KB
First Seen2026-06-10
File NameTeklifFormu_1120.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: 968416f33911ac6dbdf52a31009d85d954bd3ad3d13aa73bf52d4731c2efa768
  • MD5: 0c1cc4ae6cca523c7b50fac69874e5ba

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: 968416f33911ac6d"
        threat_level = "medium"
        first_seen = "2026-06-10"
    condition:
        hash.sha256(0, filesize) == "968416f33911ac6dbdf52a31009d85d954bd3ad3d13aa73bf52d4731c2efa768"
}

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 968416f33911ac6dbdf52a31009d85d954bd3ad3d13aa73bf52d4731c2efa768 # MD5 0c1cc4ae6cca523c7b50fac69874e5ba
TypeValueNote
sha256 968416f33911ac6dbdf52a31009d85d954bd3ad3d13aa73bf52d4731c2efa768 Sample:MassLogger
md5 0c1cc4ae6cca523c7b50fac69874e5ba Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi