MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256faff2472cbd4fcb5a01d38612678865f37655635aa4413d660bcc0b0e54a4058
MD5e210e21194c215bcaf28e16b7853a268
File Typeexe
Size627.0 KB
First Seen2026-05-20
File NamePO_97542234009634.exe
Tagsexe, MassLogger

Malware Family: MassLogger

MassLogger, email tabanlı keylogger'dır.

TypeInfostealer
Programming LanguageC#/.NET
Target PlatformWindows
C2 ProtocolSMTP/FTP
PurposeEmail keylogger
First Seen Year2020

Threat Indicators (IOC)

  • SHA256: faff2472cbd4fcb5a01d38612678865f37655635aa4413d660bcc0b0e54a4058
  • MD5: e210e21194c215bcaf28e16b7853a268

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: faff2472cbd4fcb5"
        threat_level = "medium"
        first_seen = "2026-05-20"
    condition:
        hash.sha256(0, filesize) == "faff2472cbd4fcb5a01d38612678865f37655635aa4413d660bcc0b0e54a4058"
}

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 faff2472cbd4fcb5a01d38612678865f37655635aa4413d660bcc0b0e54a4058 # MD5 e210e21194c215bcaf28e16b7853a268
TypeValueNote
sha256 faff2472cbd4fcb5a01d38612678865f37655635aa4413d660bcc0b0e54a4058 Sample:MassLogger
md5 e210e21194c215bcaf28e16b7853a268 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi