MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256c4ee184d3674fe2e3c5934502ef26c39970f9ba3524cd13876da83f1b0048aa4
MD5b589fb0dd7e499de76fa2d9b902510cd
File Typeexe
Size129.5 KB
First Seen2025-07-22
File NameCONTABILE SALDO FATTURA�PDF.scr
Tagsexe, MassLogger, wenawulus-xyz

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: c4ee184d3674fe2e3c5934502ef26c39970f9ba3524cd13876da83f1b0048aa4
  • MD5: b589fb0dd7e499de76fa2d9b902510cd

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: c4ee184d3674fe2e"
        threat_level = "medium"
        first_seen = "2025-07-22"
    condition:
        hash.sha256(0, filesize) == "c4ee184d3674fe2e3c5934502ef26c39970f9ba3524cd13876da83f1b0048aa4"
}

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 c4ee184d3674fe2e3c5934502ef26c39970f9ba3524cd13876da83f1b0048aa4 # MD5 b589fb0dd7e499de76fa2d9b902510cd
TypeValueNote
sha256 c4ee184d3674fe2e3c5934502ef26c39970f9ba3524cd13876da83f1b0048aa4 Sample:MassLogger
md5 b589fb0dd7e499de76fa2d9b902510cd Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi