MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA25624f311baff086935d9e08a98a08b8d2d64d41ff1ef950a914f7205238bc5552a
MD504adf03afb17e949728e8292dec92810
File Typeexe
Size671.0 KB
First Seen2026-02-05
File Name24f311baff086935d9e08a98a08b8d2d64d41ff1ef950a914f7205238bc5552a
Tagsexe, MassLogger, UPX

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: 24f311baff086935d9e08a98a08b8d2d64d41ff1ef950a914f7205238bc5552a
  • MD5: 04adf03afb17e949728e8292dec92810

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: 24f311baff086935"
        threat_level = "medium"
        first_seen = "2026-02-05"
    condition:
        hash.sha256(0, filesize) == "24f311baff086935d9e08a98a08b8d2d64d41ff1ef950a914f7205238bc5552a"
}

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 24f311baff086935d9e08a98a08b8d2d64d41ff1ef950a914f7205238bc5552a # MD5 04adf03afb17e949728e8292dec92810
TypeValueNote
sha256 24f311baff086935d9e08a98a08b8d2d64d41ff1ef950a914f7205238bc5552a Sample:MassLogger
md5 04adf03afb17e949728e8292dec92810 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi