MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA2567dcbe1f819de94badfa5c29216e327344c8572c254da13864baa6ba977ff8342
MD5ad15612bf2db99f048a94e1d7bb908f5
File Typerar
Size626.8 KB
First Seen2026-05-20
File NameÜRÜN_ÇİZİMİ_VE_ÖZELLİKLERİ_xlsx.z.rar
TagsMassLogger, rar

Malware Family: MassLogger

MassLogger, email tabanlı keylogger'dır.

TypeInfostealer
Programming LanguageC#/.NET
Target PlatformWindows
C2 ProtocolSMTP/FTP
PurposeEmail keylogger
First Seen Year2020

Threat Indicators (IOC)

  • SHA256: 7dcbe1f819de94badfa5c29216e327344c8572c254da13864baa6ba977ff8342
  • MD5: ad15612bf2db99f048a94e1d7bb908f5

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: 7dcbe1f819de94ba"
        threat_level = "medium"
        first_seen = "2026-05-20"
    condition:
        hash.sha256(0, filesize) == "7dcbe1f819de94badfa5c29216e327344c8572c254da13864baa6ba977ff8342"
}

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 7dcbe1f819de94badfa5c29216e327344c8572c254da13864baa6ba977ff8342 # MD5 ad15612bf2db99f048a94e1d7bb908f5
TypeValueNote
sha256 7dcbe1f819de94badfa5c29216e327344c8572c254da13864baa6ba977ff8342 Sample:MassLogger
md5 ad15612bf2db99f048a94e1d7bb908f5 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi