MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA2568e90855ee1b934e6abd95c91bd321f90ee396639ba86f9157d421965542f1f04
MD53671cf811469d6812f003e09202756c9
File Typeexe
Size1036.0 KB
First Seen2026-05-05
File NameT.T. PAYMENT SWIFT COPY.exe
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: 8e90855ee1b934e6abd95c91bd321f90ee396639ba86f9157d421965542f1f04
  • MD5: 3671cf811469d6812f003e09202756c9

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: 8e90855ee1b934e6"
        threat_level = "medium"
        first_seen = "2026-05-05"
    condition:
        hash.sha256(0, filesize) == "8e90855ee1b934e6abd95c91bd321f90ee396639ba86f9157d421965542f1f04"
}

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 8e90855ee1b934e6abd95c91bd321f90ee396639ba86f9157d421965542f1f04 # MD5 3671cf811469d6812f003e09202756c9
TypeValueNote
sha256 8e90855ee1b934e6abd95c91bd321f90ee396639ba86f9157d421965542f1f04 Sample:MassLogger
md5 3671cf811469d6812f003e09202756c9 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi