MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256e5a55684393382452832b44113064cdee18efd8fdaf56a0d560cea65221dd299
MD5df38c393f82f1e0f07014ce68fff45b5
File Typerar
Size897.7 KB
First Seen2026-05-20
File NameAWB#5305323204643.r15
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: e5a55684393382452832b44113064cdee18efd8fdaf56a0d560cea65221dd299
  • MD5: df38c393f82f1e0f07014ce68fff45b5

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: e5a5568439338245"
        threat_level = "medium"
        first_seen = "2026-05-20"
    condition:
        hash.sha256(0, filesize) == "e5a55684393382452832b44113064cdee18efd8fdaf56a0d560cea65221dd299"
}

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 e5a55684393382452832b44113064cdee18efd8fdaf56a0d560cea65221dd299 # MD5 df38c393f82f1e0f07014ce68fff45b5
TypeValueNote
sha256 e5a55684393382452832b44113064cdee18efd8fdaf56a0d560cea65221dd299 Sample:MassLogger
md5 df38c393f82f1e0f07014ce68fff45b5 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi