MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA25630d7167f14283acd7e43d416ac2225714d2c0c2bfbffb166602e45e6212ac582
MD520f5928a9439f6b4dd8239b1f209b2a2
File Typevbe
Size543.4 KB
First Seen2025-10-07
File NameBC - 1007.VBE
TagsMassLogger, 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: 30d7167f14283acd7e43d416ac2225714d2c0c2bfbffb166602e45e6212ac582
  • MD5: 20f5928a9439f6b4dd8239b1f209b2a2

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: 30d7167f14283acd"
        threat_level = "medium"
        first_seen = "2025-10-07"
    condition:
        hash.sha256(0, filesize) == "30d7167f14283acd7e43d416ac2225714d2c0c2bfbffb166602e45e6212ac582"
}

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 30d7167f14283acd7e43d416ac2225714d2c0c2bfbffb166602e45e6212ac582 # MD5 20f5928a9439f6b4dd8239b1f209b2a2
TypeValueNote
sha256 30d7167f14283acd7e43d416ac2225714d2c0c2bfbffb166602e45e6212ac582 Sample:MassLogger
md5 20f5928a9439f6b4dd8239b1f209b2a2 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi