MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA2561ccc371d8aabe38a14870cf9ab8c836f6e161bb73e653f5f7dfac508092aa482
MD5d0e5204b473661e418a8b52cf7287426
File Typevbe
Size964.6 KB
First Seen2025-11-20
File NameTeklifFormu_2005.vbe
Tagsgeo, MassLogger, TUR, 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: 1ccc371d8aabe38a14870cf9ab8c836f6e161bb73e653f5f7dfac508092aa482
  • MD5: d0e5204b473661e418a8b52cf7287426

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: 1ccc371d8aabe38a"
        threat_level = "medium"
        first_seen = "2025-11-20"
    condition:
        hash.sha256(0, filesize) == "1ccc371d8aabe38a14870cf9ab8c836f6e161bb73e653f5f7dfac508092aa482"
}

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 1ccc371d8aabe38a14870cf9ab8c836f6e161bb73e653f5f7dfac508092aa482 # MD5 d0e5204b473661e418a8b52cf7287426
TypeValueNote
sha256 1ccc371d8aabe38a14870cf9ab8c836f6e161bb73e653f5f7dfac508092aa482 Sample:MassLogger
md5 d0e5204b473661e418a8b52cf7287426 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi