MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA25606cb04d6eba391830d6cf91c9e72917a54cc78ee6ba9c1c9342c89f767a645de
MD528e28586dc2513142c99c5be8c33e882
File Typejs
Size86.8 KB
First Seen2026-01-16
File NameBadaTek_New_Order_2026-01-15.js
Tagsjs, 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: 06cb04d6eba391830d6cf91c9e72917a54cc78ee6ba9c1c9342c89f767a645de
  • MD5: 28e28586dc2513142c99c5be8c33e882

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: 06cb04d6eba39183"
        threat_level = "medium"
        first_seen = "2026-01-16"
    condition:
        hash.sha256(0, filesize) == "06cb04d6eba391830d6cf91c9e72917a54cc78ee6ba9c1c9342c89f767a645de"
}

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 06cb04d6eba391830d6cf91c9e72917a54cc78ee6ba9c1c9342c89f767a645de # MD5 28e28586dc2513142c99c5be8c33e882
TypeValueNote
sha256 06cb04d6eba391830d6cf91c9e72917a54cc78ee6ba9c1c9342c89f767a645de Sample:MassLogger
md5 28e28586dc2513142c99c5be8c33e882 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi