MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA2566af352072fa734041569786f1adbcd3bc446a66ac6f6f4affcda270e4c7b47fa
MD5705ba558940b3e45c9dc57e1e6d04ba7
File Typeexe
Size666.5 KB
First Seen2025-06-10
File Name6af352072fa734041569786f1adbcd3bc446a66ac6f6f4affcda270e4c7b47fa
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: 6af352072fa734041569786f1adbcd3bc446a66ac6f6f4affcda270e4c7b47fa
  • MD5: 705ba558940b3e45c9dc57e1e6d04ba7

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: 6af352072fa73404"
        threat_level = "medium"
        first_seen = "2025-06-10"
    condition:
        hash.sha256(0, filesize) == "6af352072fa734041569786f1adbcd3bc446a66ac6f6f4affcda270e4c7b47fa"
}

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 6af352072fa734041569786f1adbcd3bc446a66ac6f6f4affcda270e4c7b47fa # MD5 705ba558940b3e45c9dc57e1e6d04ba7
TypeValueNote
sha256 6af352072fa734041569786f1adbcd3bc446a66ac6f6f4affcda270e4c7b47fa Sample:MassLogger
md5 705ba558940b3e45c9dc57e1e6d04ba7 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi