MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256c0002e1de2b2230d2e8cbb26ce097dc657831e80d6c6a36ab08432affc3ffcef
MD5f2153d8abe46e7f627cdf2b45b6161d1
File Typeexe
Size670.0 KB
First Seen2026-05-20
File NameMB267382625AE.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: c0002e1de2b2230d2e8cbb26ce097dc657831e80d6c6a36ab08432affc3ffcef
  • MD5: f2153d8abe46e7f627cdf2b45b6161d1

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: c0002e1de2b2230d"
        threat_level = "medium"
        first_seen = "2026-05-20"
    condition:
        hash.sha256(0, filesize) == "c0002e1de2b2230d2e8cbb26ce097dc657831e80d6c6a36ab08432affc3ffcef"
}

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 c0002e1de2b2230d2e8cbb26ce097dc657831e80d6c6a36ab08432affc3ffcef # MD5 f2153d8abe46e7f627cdf2b45b6161d1
TypeValueNote
sha256 c0002e1de2b2230d2e8cbb26ce097dc657831e80d6c6a36ab08432affc3ffcef Sample:MassLogger
md5 f2153d8abe46e7f627cdf2b45b6161d1 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi