MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA2566518acc1ac256a5e244adce532e52a42c09f8599fc38229adb55fce4826cae85
MD5cfe5970489111e1dad3e029a032c70e3
File Typeexe
Size6450.0 KB
First Seen2025-08-28
File NameHESAPHARAKELITIZ-pdf.exe
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: 6518acc1ac256a5e244adce532e52a42c09f8599fc38229adb55fce4826cae85
  • MD5: cfe5970489111e1dad3e029a032c70e3

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: 6518acc1ac256a5e"
        threat_level = "medium"
        first_seen = "2025-08-28"
    condition:
        hash.sha256(0, filesize) == "6518acc1ac256a5e244adce532e52a42c09f8599fc38229adb55fce4826cae85"
}

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 6518acc1ac256a5e244adce532e52a42c09f8599fc38229adb55fce4826cae85 # MD5 cfe5970489111e1dad3e029a032c70e3
TypeValueNote
sha256 6518acc1ac256a5e244adce532e52a42c09f8599fc38229adb55fce4826cae85 Sample:MassLogger
md5 cfe5970489111e1dad3e029a032c70e3 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi