MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA2567a2a7f0806c0d8a61652d6e5533d4057bfef71c0b794e07772914be2296852de
MD55cd97eb53d94c715000f6e124c4190fb
File Typeexe
Size835.0 KB
First Seen2025-06-20
File NameDHL Receipt_AWB 487178391.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: 7a2a7f0806c0d8a61652d6e5533d4057bfef71c0b794e07772914be2296852de
  • MD5: 5cd97eb53d94c715000f6e124c4190fb

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: 7a2a7f0806c0d8a6"
        threat_level = "medium"
        first_seen = "2025-06-20"
    condition:
        hash.sha256(0, filesize) == "7a2a7f0806c0d8a61652d6e5533d4057bfef71c0b794e07772914be2296852de"
}

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 7a2a7f0806c0d8a61652d6e5533d4057bfef71c0b794e07772914be2296852de # MD5 5cd97eb53d94c715000f6e124c4190fb
TypeValueNote
sha256 7a2a7f0806c0d8a61652d6e5533d4057bfef71c0b794e07772914be2296852de Sample:MassLogger
md5 5cd97eb53d94c715000f6e124c4190fb Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi