MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA2569353b23043743ebd6f1e9ddf137b304ebc126c811935dbad68b17359a2a726e1
MD5a4908b7907a1085cd1b96acd2e9ac640
File Typeexe
Size321.0 KB
First Seen2026-05-08
File Name9353b23043743ebd6f1e9ddf137b304ebc126c811935dbad68b17359a2a726e1
Tagsexe, MassLogger

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: 9353b23043743ebd6f1e9ddf137b304ebc126c811935dbad68b17359a2a726e1
  • MD5: a4908b7907a1085cd1b96acd2e9ac640

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: 9353b23043743ebd"
        threat_level = "medium"
        first_seen = "2026-05-08"
    condition:
        hash.sha256(0, filesize) == "9353b23043743ebd6f1e9ddf137b304ebc126c811935dbad68b17359a2a726e1"
}

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 9353b23043743ebd6f1e9ddf137b304ebc126c811935dbad68b17359a2a726e1 # MD5 a4908b7907a1085cd1b96acd2e9ac640
TypeValueNote
sha256 9353b23043743ebd6f1e9ddf137b304ebc126c811935dbad68b17359a2a726e1 Sample:MassLogger
md5 a4908b7907a1085cd1b96acd2e9ac640 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi