MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA25610330919ad1b637e4c6ee42fb24e5cbf581c7a51bb879391b68be0cadcf0fa35
MD5d2b14d00475ee8a6c580097d62358bf0
File Typeexe
Size869.5 KB
First Seen2025-08-22
File NameSecuriteInfo.com.Win32.MalwareX-gen.84113987
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: 10330919ad1b637e4c6ee42fb24e5cbf581c7a51bb879391b68be0cadcf0fa35
  • MD5: d2b14d00475ee8a6c580097d62358bf0

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: 10330919ad1b637e"
        threat_level = "medium"
        first_seen = "2025-08-22"
    condition:
        hash.sha256(0, filesize) == "10330919ad1b637e4c6ee42fb24e5cbf581c7a51bb879391b68be0cadcf0fa35"
}

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 10330919ad1b637e4c6ee42fb24e5cbf581c7a51bb879391b68be0cadcf0fa35 # MD5 d2b14d00475ee8a6c580097d62358bf0
TypeValueNote
sha256 10330919ad1b637e4c6ee42fb24e5cbf581c7a51bb879391b68be0cadcf0fa35 Sample:MassLogger
md5 d2b14d00475ee8a6c580097d62358bf0 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi