MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA2569ed10038d2b1b7f16aa554d6d142f934512e6a875567669ea947a5e5cddb8ecd
MD50f6c05e26d347d885c34c68a3f340715
File Typeexe
Size1076.5 KB
First Seen2025-07-07
File Name9ed10038d2b1b7f16aa554d6d142f934512e6a875567669ea947a5e5cddb8ecd
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: 9ed10038d2b1b7f16aa554d6d142f934512e6a875567669ea947a5e5cddb8ecd
  • MD5: 0f6c05e26d347d885c34c68a3f340715

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: 9ed10038d2b1b7f1"
        threat_level = "medium"
        first_seen = "2025-07-07"
    condition:
        hash.sha256(0, filesize) == "9ed10038d2b1b7f16aa554d6d142f934512e6a875567669ea947a5e5cddb8ecd"
}

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 9ed10038d2b1b7f16aa554d6d142f934512e6a875567669ea947a5e5cddb8ecd # MD5 0f6c05e26d347d885c34c68a3f340715
TypeValueNote
sha256 9ed10038d2b1b7f16aa554d6d142f934512e6a875567669ea947a5e5cddb8ecd Sample:MassLogger
md5 0f6c05e26d347d885c34c68a3f340715 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi