MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256987506f11060532cf7501622f1d39180801ef70c893e0dcd2426a4c9d6b23038
MD5278460442547106057ffaf9817efe9d7
File Typerar
Size450.3 KB
First Seen2025-06-17
File Nameaccount of USD 170,960.rar
TagsMassLogger, rar

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: 987506f11060532cf7501622f1d39180801ef70c893e0dcd2426a4c9d6b23038
  • MD5: 278460442547106057ffaf9817efe9d7

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: 987506f11060532c"
        threat_level = "medium"
        first_seen = "2025-06-17"
    condition:
        hash.sha256(0, filesize) == "987506f11060532cf7501622f1d39180801ef70c893e0dcd2426a4c9d6b23038"
}

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 987506f11060532cf7501622f1d39180801ef70c893e0dcd2426a4c9d6b23038 # MD5 278460442547106057ffaf9817efe9d7
TypeValueNote
sha256 987506f11060532cf7501622f1d39180801ef70c893e0dcd2426a4c9d6b23038 Sample:MassLogger
md5 278460442547106057ffaf9817efe9d7 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi