MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA2569edbb405c50942558c0c2fd992038d6e60fbddacf3c996b311a0c3cca836d9b7
MD55571364653bebc386834e019748019e0
File Typevbs
Size16.0 KB
First Seen2025-09-15
File NameTEKLIF_00000915.vbs
TagsMassLogger, vbs

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: 9edbb405c50942558c0c2fd992038d6e60fbddacf3c996b311a0c3cca836d9b7
  • MD5: 5571364653bebc386834e019748019e0

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: 9edbb405c5094255"
        threat_level = "medium"
        first_seen = "2025-09-15"
    condition:
        hash.sha256(0, filesize) == "9edbb405c50942558c0c2fd992038d6e60fbddacf3c996b311a0c3cca836d9b7"
}

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 9edbb405c50942558c0c2fd992038d6e60fbddacf3c996b311a0c3cca836d9b7 # MD5 5571364653bebc386834e019748019e0
TypeValueNote
sha256 9edbb405c50942558c0c2fd992038d6e60fbddacf3c996b311a0c3cca836d9b7 Sample:MassLogger
md5 5571364653bebc386834e019748019e0 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi