MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256241776fc69196b89dd17f06ccba50bd0d00dd1422c4ffbd1230eb828b021853b
MD54c512a7cdba038bdd857358e699b49e4
File Typezip
Size480.4 KB
First Seen2026-01-08
File NameRequest for Quotation - 171595.z
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: 241776fc69196b89dd17f06ccba50bd0d00dd1422c4ffbd1230eb828b021853b
  • MD5: 4c512a7cdba038bdd857358e699b49e4

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: 241776fc69196b89"
        threat_level = "medium"
        first_seen = "2026-01-08"
    condition:
        hash.sha256(0, filesize) == "241776fc69196b89dd17f06ccba50bd0d00dd1422c4ffbd1230eb828b021853b"
}

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 241776fc69196b89dd17f06ccba50bd0d00dd1422c4ffbd1230eb828b021853b # MD5 4c512a7cdba038bdd857358e699b49e4
TypeValueNote
sha256 241776fc69196b89dd17f06ccba50bd0d00dd1422c4ffbd1230eb828b021853b Sample:MassLogger
md5 4c512a7cdba038bdd857358e699b49e4 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi