MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256222d0a606b3ec409afb2b5716a5450de4c880138e3d74e444fffe5305b8b9425
MD59a1dff5296779118ca42af26e420773b
File Typevbe
Size543.4 KB
First Seen2025-10-06
File NameE-dekont.pdf.VBE
Tagsgeo, MassLogger, TUR, vbe

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: 222d0a606b3ec409afb2b5716a5450de4c880138e3d74e444fffe5305b8b9425
  • MD5: 9a1dff5296779118ca42af26e420773b

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: 222d0a606b3ec409"
        threat_level = "medium"
        first_seen = "2025-10-06"
    condition:
        hash.sha256(0, filesize) == "222d0a606b3ec409afb2b5716a5450de4c880138e3d74e444fffe5305b8b9425"
}

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 222d0a606b3ec409afb2b5716a5450de4c880138e3d74e444fffe5305b8b9425 # MD5 9a1dff5296779118ca42af26e420773b
TypeValueNote
sha256 222d0a606b3ec409afb2b5716a5450de4c880138e3d74e444fffe5305b8b9425 Sample:MassLogger
md5 9a1dff5296779118ca42af26e420773b Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi