MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256722f03602e2f49798b90975a8abbd3270b984399f49286f876c3156aff671959
MD5d2d16125157929961b3ac331a3040188
File Typeps1
Size1042.4 KB
First Seen2025-12-02
File NameEncrypted_Script.ps1
TagsMassLogger, ps1

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: 722f03602e2f49798b90975a8abbd3270b984399f49286f876c3156aff671959
  • MD5: d2d16125157929961b3ac331a3040188

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: 722f03602e2f4979"
        threat_level = "medium"
        first_seen = "2025-12-02"
    condition:
        hash.sha256(0, filesize) == "722f03602e2f49798b90975a8abbd3270b984399f49286f876c3156aff671959"
}

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 722f03602e2f49798b90975a8abbd3270b984399f49286f876c3156aff671959 # MD5 d2d16125157929961b3ac331a3040188
TypeValueNote
sha256 722f03602e2f49798b90975a8abbd3270b984399f49286f876c3156aff671959 Sample:MassLogger
md5 d2d16125157929961b3ac331a3040188 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi