MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA2568deadad594c1b87d0b0de922ec623cab4c44ddc4c69cbfd48d54c47812761971
MD5e966b6304b792e7e1cbab466ed30c6a9
File Typeexe
Size928.0 KB
First Seen2025-06-10
File Name8deadad594c1b87d0b0de922ec623cab4c44ddc4c69cbfd48d54c47812761971
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: 8deadad594c1b87d0b0de922ec623cab4c44ddc4c69cbfd48d54c47812761971
  • MD5: e966b6304b792e7e1cbab466ed30c6a9

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: 8deadad594c1b87d"
        threat_level = "medium"
        first_seen = "2025-06-10"
    condition:
        hash.sha256(0, filesize) == "8deadad594c1b87d0b0de922ec623cab4c44ddc4c69cbfd48d54c47812761971"
}

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 8deadad594c1b87d0b0de922ec623cab4c44ddc4c69cbfd48d54c47812761971 # MD5 e966b6304b792e7e1cbab466ed30c6a9
TypeValueNote
sha256 8deadad594c1b87d0b0de922ec623cab4c44ddc4c69cbfd48d54c47812761971 Sample:MassLogger
md5 e966b6304b792e7e1cbab466ed30c6a9 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi