MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256216aa0125486b52ee78d537de24fb8b4fdcea3ff81b5b85f9bef070026a796cc
MD515d23343b71d9a089575e90e83654ba1
File Typeexe
Size513.0 KB
First Seen2025-06-17
File NameSecuriteInfo.com.MSIL.Kryptik.ALLB.tr.24934.25864
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: 216aa0125486b52ee78d537de24fb8b4fdcea3ff81b5b85f9bef070026a796cc
  • MD5: 15d23343b71d9a089575e90e83654ba1

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: 216aa0125486b52e"
        threat_level = "medium"
        first_seen = "2025-06-17"
    condition:
        hash.sha256(0, filesize) == "216aa0125486b52ee78d537de24fb8b4fdcea3ff81b5b85f9bef070026a796cc"
}

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 216aa0125486b52ee78d537de24fb8b4fdcea3ff81b5b85f9bef070026a796cc # MD5 15d23343b71d9a089575e90e83654ba1
TypeValueNote
sha256 216aa0125486b52ee78d537de24fb8b4fdcea3ff81b5b85f9bef070026a796cc Sample:MassLogger
md5 15d23343b71d9a089575e90e83654ba1 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi