MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256baca7d8ec3dcc60029e43b8a4a90c6298b61e239a84e511a48b26465ce5749e7
MD53ca45113e811cd861e589af3a2116548
File Typevbe
Size546.4 KB
First Seen2025-10-16
File NameTEK_PROFORMA.pdf.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: baca7d8ec3dcc60029e43b8a4a90c6298b61e239a84e511a48b26465ce5749e7
  • MD5: 3ca45113e811cd861e589af3a2116548

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: baca7d8ec3dcc600"
        threat_level = "medium"
        first_seen = "2025-10-16"
    condition:
        hash.sha256(0, filesize) == "baca7d8ec3dcc60029e43b8a4a90c6298b61e239a84e511a48b26465ce5749e7"
}

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 baca7d8ec3dcc60029e43b8a4a90c6298b61e239a84e511a48b26465ce5749e7 # MD5 3ca45113e811cd861e589af3a2116548
TypeValueNote
sha256 baca7d8ec3dcc60029e43b8a4a90c6298b61e239a84e511a48b26465ce5749e7 Sample:MassLogger
md5 3ca45113e811cd861e589af3a2116548 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi