MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA2566a2cefdd2b5810aef5388f4b23392847ae4abe6d4142ea7145e0afd04c00fcab
MD56265c405f856cca22702f9a5a64d39e0
File Typeexe
Size1047.0 KB
First Seen2026-05-28
File NameTLQ-3116-26 attach pdf.exe
Tagsexe, 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: 6a2cefdd2b5810aef5388f4b23392847ae4abe6d4142ea7145e0afd04c00fcab
  • MD5: 6265c405f856cca22702f9a5a64d39e0

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: 6a2cefdd2b5810ae"
        threat_level = "medium"
        first_seen = "2026-05-28"
    condition:
        hash.sha256(0, filesize) == "6a2cefdd2b5810aef5388f4b23392847ae4abe6d4142ea7145e0afd04c00fcab"
}

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 6a2cefdd2b5810aef5388f4b23392847ae4abe6d4142ea7145e0afd04c00fcab # MD5 6265c405f856cca22702f9a5a64d39e0
TypeValueNote
sha256 6a2cefdd2b5810aef5388f4b23392847ae4abe6d4142ea7145e0afd04c00fcab Sample:MassLogger
md5 6265c405f856cca22702f9a5a64d39e0 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi