MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256b62d59e3ffeabd1c6d48759afcaa61e768b4de4c1bd83804fc31bb7d89f44e9a
MD5f8fe763cba3f0b74c796abe8f6ee8b7e
File Typerar
Size1080.8 KB
First Seen2026-05-20
File NameAWB#5305323204643.r11
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: b62d59e3ffeabd1c6d48759afcaa61e768b4de4c1bd83804fc31bb7d89f44e9a
  • MD5: f8fe763cba3f0b74c796abe8f6ee8b7e

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: b62d59e3ffeabd1c"
        threat_level = "medium"
        first_seen = "2026-05-20"
    condition:
        hash.sha256(0, filesize) == "b62d59e3ffeabd1c6d48759afcaa61e768b4de4c1bd83804fc31bb7d89f44e9a"
}

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 b62d59e3ffeabd1c6d48759afcaa61e768b4de4c1bd83804fc31bb7d89f44e9a # MD5 f8fe763cba3f0b74c796abe8f6ee8b7e
TypeValueNote
sha256 b62d59e3ffeabd1c6d48759afcaa61e768b4de4c1bd83804fc31bb7d89f44e9a Sample:MassLogger
md5 f8fe763cba3f0b74c796abe8f6ee8b7e Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi