MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256975de0616a561e423d820a9afdcad4ee7521deb2f192da0e4a220ff1da03f82a
MD56e32a893bc1988546e10ad7bccd548cf
File Typeexe
Size616.0 KB
First Seen2025-07-07
File Name975de0616a561e423d820a9afdcad4ee7521deb2f192da0e4a220ff1da03f82a
Tagsexe, MassLogger

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: 975de0616a561e423d820a9afdcad4ee7521deb2f192da0e4a220ff1da03f82a
  • MD5: 6e32a893bc1988546e10ad7bccd548cf

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: 975de0616a561e42"
        threat_level = "medium"
        first_seen = "2025-07-07"
    condition:
        hash.sha256(0, filesize) == "975de0616a561e423d820a9afdcad4ee7521deb2f192da0e4a220ff1da03f82a"
}

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 975de0616a561e423d820a9afdcad4ee7521deb2f192da0e4a220ff1da03f82a # MD5 6e32a893bc1988546e10ad7bccd548cf
TypeValueNote
sha256 975de0616a561e423d820a9afdcad4ee7521deb2f192da0e4a220ff1da03f82a Sample:MassLogger
md5 6e32a893bc1988546e10ad7bccd548cf Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi