MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA2562c4d3b556a34bb783b24ec5d5462a2f13811f64e73ee5fc6a726c38f19c039a3
MD574541de11d17e5d413c9fccae6b42d54
File Typeexe
Size1038.5 KB
First Seen2025-06-10
File Name2c4d3b556a34bb783b24ec5d5462a2f13811f64e73ee5fc6a726c38f19c039a3
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: 2c4d3b556a34bb783b24ec5d5462a2f13811f64e73ee5fc6a726c38f19c039a3
  • MD5: 74541de11d17e5d413c9fccae6b42d54

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: 2c4d3b556a34bb78"
        threat_level = "medium"
        first_seen = "2025-06-10"
    condition:
        hash.sha256(0, filesize) == "2c4d3b556a34bb783b24ec5d5462a2f13811f64e73ee5fc6a726c38f19c039a3"
}

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 2c4d3b556a34bb783b24ec5d5462a2f13811f64e73ee5fc6a726c38f19c039a3 # MD5 74541de11d17e5d413c9fccae6b42d54
TypeValueNote
sha256 2c4d3b556a34bb783b24ec5d5462a2f13811f64e73ee5fc6a726c38f19c039a3 Sample:MassLogger
md5 74541de11d17e5d413c9fccae6b42d54 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi