MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA2566c72b48a43aee3bb58a5c7de230177d66034af89078b4431706303f27968c088
MD5546f8897b9f9e38249dd5908ed4e0ce8
File Typeexe
Size814.5 KB
First Seen2025-06-10
File Name6c72b48a43aee3bb58a5c7de230177d66034af89078b4431706303f27968c088
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: 6c72b48a43aee3bb58a5c7de230177d66034af89078b4431706303f27968c088
  • MD5: 546f8897b9f9e38249dd5908ed4e0ce8

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: 6c72b48a43aee3bb"
        threat_level = "medium"
        first_seen = "2025-06-10"
    condition:
        hash.sha256(0, filesize) == "6c72b48a43aee3bb58a5c7de230177d66034af89078b4431706303f27968c088"
}

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 6c72b48a43aee3bb58a5c7de230177d66034af89078b4431706303f27968c088 # MD5 546f8897b9f9e38249dd5908ed4e0ce8
TypeValueNote
sha256 6c72b48a43aee3bb58a5c7de230177d66034af89078b4431706303f27968c088 Sample:MassLogger
md5 546f8897b9f9e38249dd5908ed4e0ce8 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi