MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA2566911baa01a31efb2c1457d59c16d2d3ac509748d787b6790e19c70b573d4b7b8
MD52444a70c8184aff28f616433c2da5e2c
File Typeexe
Size630.0 KB
First Seen2025-08-12
File Name6911baa01a31efb2c1457d59c16d2d3ac509748d787b6790e19c70b573d4b7b8
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: 6911baa01a31efb2c1457d59c16d2d3ac509748d787b6790e19c70b573d4b7b8
  • MD5: 2444a70c8184aff28f616433c2da5e2c

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: 6911baa01a31efb2"
        threat_level = "medium"
        first_seen = "2025-08-12"
    condition:
        hash.sha256(0, filesize) == "6911baa01a31efb2c1457d59c16d2d3ac509748d787b6790e19c70b573d4b7b8"
}

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 6911baa01a31efb2c1457d59c16d2d3ac509748d787b6790e19c70b573d4b7b8 # MD5 2444a70c8184aff28f616433c2da5e2c
TypeValueNote
sha256 6911baa01a31efb2c1457d59c16d2d3ac509748d787b6790e19c70b573d4b7b8 Sample:MassLogger
md5 2444a70c8184aff28f616433c2da5e2c Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi