MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA2563826ecc2d0fc46bece9de18faaf48acea6615fda5320c8efe134b6439f099b73
MD5060b3fd93c5fa060daf45bd4fc0ee6d0
File Typeexe
Size6470.0 KB
First Seen2025-09-01
File NameUSD HESAP HARAKETILIZ-pdf.exe
Tagsexe, MassLogger

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: 3826ecc2d0fc46bece9de18faaf48acea6615fda5320c8efe134b6439f099b73
  • MD5: 060b3fd93c5fa060daf45bd4fc0ee6d0

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: 3826ecc2d0fc46be"
        threat_level = "medium"
        first_seen = "2025-09-01"
    condition:
        hash.sha256(0, filesize) == "3826ecc2d0fc46bece9de18faaf48acea6615fda5320c8efe134b6439f099b73"
}

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 3826ecc2d0fc46bece9de18faaf48acea6615fda5320c8efe134b6439f099b73 # MD5 060b3fd93c5fa060daf45bd4fc0ee6d0
TypeValueNote
sha256 3826ecc2d0fc46bece9de18faaf48acea6615fda5320c8efe134b6439f099b73 Sample:MassLogger
md5 060b3fd93c5fa060daf45bd4fc0ee6d0 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi