MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA2560228c928cdc2312658629a75d65bb333014b28585f6b5614db51b86e7189a234
MD59d579fa039362ef5b04bff314651649c
File Typeexe
Size725.0 KB
First Seen2025-06-24
File NameSecuriteInfo.com.Win32.MalwareX-gen.11308.21254
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: 0228c928cdc2312658629a75d65bb333014b28585f6b5614db51b86e7189a234
  • MD5: 9d579fa039362ef5b04bff314651649c

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: 0228c928cdc23126"
        threat_level = "medium"
        first_seen = "2025-06-24"
    condition:
        hash.sha256(0, filesize) == "0228c928cdc2312658629a75d65bb333014b28585f6b5614db51b86e7189a234"
}

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 0228c928cdc2312658629a75d65bb333014b28585f6b5614db51b86e7189a234 # MD5 9d579fa039362ef5b04bff314651649c
TypeValueNote
sha256 0228c928cdc2312658629a75d65bb333014b28585f6b5614db51b86e7189a234 Sample:MassLogger
md5 9d579fa039362ef5b04bff314651649c Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi