MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA2567f3ae6c277523cadf6a32078353d5f7f7ba55b5c01d3039e761e548cde4faf9c
MD59049a7e58e36828c0492fe0f4b3e73e8
File Typerar
Size491.9 KB
First Seen2026-05-20
File NameDHL_Express_AWB44633179800-708439321-pdf_(2).rar
TagsMassLogger, rar

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: 7f3ae6c277523cadf6a32078353d5f7f7ba55b5c01d3039e761e548cde4faf9c
  • MD5: 9049a7e58e36828c0492fe0f4b3e73e8

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: 7f3ae6c277523cad"
        threat_level = "medium"
        first_seen = "2026-05-20"
    condition:
        hash.sha256(0, filesize) == "7f3ae6c277523cadf6a32078353d5f7f7ba55b5c01d3039e761e548cde4faf9c"
}

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 7f3ae6c277523cadf6a32078353d5f7f7ba55b5c01d3039e761e548cde4faf9c # MD5 9049a7e58e36828c0492fe0f4b3e73e8
TypeValueNote
sha256 7f3ae6c277523cadf6a32078353d5f7f7ba55b5c01d3039e761e548cde4faf9c Sample:MassLogger
md5 9049a7e58e36828c0492fe0f4b3e73e8 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi