MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA2564cc2ee9a83fbc2ad72bf5778ce426292b866017dc860c3170025882079dcc3c7
MD5c4fa52175f87117254d3ed1706e6e9d0
File Typeexe
Size1019.0 KB
First Seen2025-07-17
File NameDHL Shipping Documents_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: 4cc2ee9a83fbc2ad72bf5778ce426292b866017dc860c3170025882079dcc3c7
  • MD5: c4fa52175f87117254d3ed1706e6e9d0

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: 4cc2ee9a83fbc2ad"
        threat_level = "medium"
        first_seen = "2025-07-17"
    condition:
        hash.sha256(0, filesize) == "4cc2ee9a83fbc2ad72bf5778ce426292b866017dc860c3170025882079dcc3c7"
}

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 4cc2ee9a83fbc2ad72bf5778ce426292b866017dc860c3170025882079dcc3c7 # MD5 c4fa52175f87117254d3ed1706e6e9d0
TypeValueNote
sha256 4cc2ee9a83fbc2ad72bf5778ce426292b866017dc860c3170025882079dcc3c7 Sample:MassLogger
md5 c4fa52175f87117254d3ed1706e6e9d0 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi