MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA2566d0bd45ec3207831c1353180e2035b4247546d7e463e396d54ee66760621397c
MD557c0e314551a2e054a4bd064be8090b6
File Typevbs
Size50.8 KB
First Seen2025-06-24
File Name01-063323425.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: 6d0bd45ec3207831c1353180e2035b4247546d7e463e396d54ee66760621397c
  • MD5: 57c0e314551a2e054a4bd064be8090b6

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: 6d0bd45ec3207831"
        threat_level = "medium"
        first_seen = "2025-06-24"
    condition:
        hash.sha256(0, filesize) == "6d0bd45ec3207831c1353180e2035b4247546d7e463e396d54ee66760621397c"
}

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 6d0bd45ec3207831c1353180e2035b4247546d7e463e396d54ee66760621397c # MD5 57c0e314551a2e054a4bd064be8090b6
TypeValueNote
sha256 6d0bd45ec3207831c1353180e2035b4247546d7e463e396d54ee66760621397c Sample:MassLogger
md5 57c0e314551a2e054a4bd064be8090b6 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi