MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA2564af152a7956850fba298c7d2ede32e674b25e4f5b874fcbfc3d1d0d6dabe718e
MD5d8b0a2ec2bcacedeedea4fc6f20c7239
File Typeexe
Size945.5 KB
First Seen2025-07-17
File NameGuía aérea de DHL#6829014300-PDF.exe
TagsDHL, exe, 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: 4af152a7956850fba298c7d2ede32e674b25e4f5b874fcbfc3d1d0d6dabe718e
  • MD5: d8b0a2ec2bcacedeedea4fc6f20c7239

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: 4af152a7956850fb"
        threat_level = "medium"
        first_seen = "2025-07-17"
    condition:
        hash.sha256(0, filesize) == "4af152a7956850fba298c7d2ede32e674b25e4f5b874fcbfc3d1d0d6dabe718e"
}

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 4af152a7956850fba298c7d2ede32e674b25e4f5b874fcbfc3d1d0d6dabe718e # MD5 d8b0a2ec2bcacedeedea4fc6f20c7239
TypeValueNote
sha256 4af152a7956850fba298c7d2ede32e674b25e4f5b874fcbfc3d1d0d6dabe718e Sample:MassLogger
md5 d8b0a2ec2bcacedeedea4fc6f20c7239 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi