MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256c497271a900c6b2cb681d47b913e718efcff6ec00ec46138a82c30dfaaaa03b8
MD5b3579c926a3b6e3a3907f27df66780fd
File Typevbe
Size522.5 KB
First Seen2025-10-27
File NameSİPARİŞ 189395.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: c497271a900c6b2cb681d47b913e718efcff6ec00ec46138a82c30dfaaaa03b8
  • MD5: b3579c926a3b6e3a3907f27df66780fd

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: c497271a900c6b2c"
        threat_level = "medium"
        first_seen = "2025-10-27"
    condition:
        hash.sha256(0, filesize) == "c497271a900c6b2cb681d47b913e718efcff6ec00ec46138a82c30dfaaaa03b8"
}

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 c497271a900c6b2cb681d47b913e718efcff6ec00ec46138a82c30dfaaaa03b8 # MD5 b3579c926a3b6e3a3907f27df66780fd
TypeValueNote
sha256 c497271a900c6b2cb681d47b913e718efcff6ec00ec46138a82c30dfaaaa03b8 Sample:MassLogger
md5 b3579c926a3b6e3a3907f27df66780fd Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi