MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA25682710b020989bc478c77ccec052a6af50d93eb0b8cf6a2b72579bff21c8fe3c8
MD5962a27acb8366efdea121af727fdfb4c
File Typezip
Size480.5 KB
First Seen2026-01-08
File NameCORALP-YBY BUILDERS FREIGHT INVOICES AS OF 12.31.TAR
Tagskingnovasend-mcnzxz-com, MassLogger, zip

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: 82710b020989bc478c77ccec052a6af50d93eb0b8cf6a2b72579bff21c8fe3c8
  • MD5: 962a27acb8366efdea121af727fdfb4c

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: 82710b020989bc47"
        threat_level = "medium"
        first_seen = "2026-01-08"
    condition:
        hash.sha256(0, filesize) == "82710b020989bc478c77ccec052a6af50d93eb0b8cf6a2b72579bff21c8fe3c8"
}

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 82710b020989bc478c77ccec052a6af50d93eb0b8cf6a2b72579bff21c8fe3c8 # MD5 962a27acb8366efdea121af727fdfb4c
TypeValueNote
sha256 82710b020989bc478c77ccec052a6af50d93eb0b8cf6a2b72579bff21c8fe3c8 Sample:MassLogger
md5 962a27acb8366efdea121af727fdfb4c Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi