MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256329bd5c046cbf67eb31dd230e0d888374afbee19d89f333ffbe41494079dbdfd
MD50da61c7a0d5a1a0701b273ba1645cf62
File Typeexe
Size492.0 KB
First Seen2025-08-11
File NameSecuriteInfo.com.Win32.SuspectCrc.22916.12018
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: 329bd5c046cbf67eb31dd230e0d888374afbee19d89f333ffbe41494079dbdfd
  • MD5: 0da61c7a0d5a1a0701b273ba1645cf62

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: 329bd5c046cbf67e"
        threat_level = "medium"
        first_seen = "2025-08-11"
    condition:
        hash.sha256(0, filesize) == "329bd5c046cbf67eb31dd230e0d888374afbee19d89f333ffbe41494079dbdfd"
}

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 329bd5c046cbf67eb31dd230e0d888374afbee19d89f333ffbe41494079dbdfd # MD5 0da61c7a0d5a1a0701b273ba1645cf62
TypeValueNote
sha256 329bd5c046cbf67eb31dd230e0d888374afbee19d89f333ffbe41494079dbdfd Sample:MassLogger
md5 0da61c7a0d5a1a0701b273ba1645cf62 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi