MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA25685ec11517de659f7a359f0fac6b06e53229e67bc3ee46bb942c2d4d692cd0982
MD524d2a14e6ad773a0737a5a250e5f4609
File Typeexe
Size988.0 KB
First Seen2025-09-05
File Name85ec11517de659f7a359f0fac6b06e53229e67bc3ee46bb942c2d4d692cd0982
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: 85ec11517de659f7a359f0fac6b06e53229e67bc3ee46bb942c2d4d692cd0982
  • MD5: 24d2a14e6ad773a0737a5a250e5f4609

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: 85ec11517de659f7"
        threat_level = "medium"
        first_seen = "2025-09-05"
    condition:
        hash.sha256(0, filesize) == "85ec11517de659f7a359f0fac6b06e53229e67bc3ee46bb942c2d4d692cd0982"
}

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 85ec11517de659f7a359f0fac6b06e53229e67bc3ee46bb942c2d4d692cd0982 # MD5 24d2a14e6ad773a0737a5a250e5f4609
TypeValueNote
sha256 85ec11517de659f7a359f0fac6b06e53229e67bc3ee46bb942c2d4d692cd0982 Sample:MassLogger
md5 24d2a14e6ad773a0737a5a250e5f4609 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi