MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256d16f8d7b89457de7c3175fbe6873ab64b3e8243edb252e98d05921810ba05b15
MD535378cd1450aab1de37f567a81f2fddd
File Typeexe
Size1171.5 KB
First Seen2025-07-08
File NameSHIPPMENT NOTIFICATION.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: d16f8d7b89457de7c3175fbe6873ab64b3e8243edb252e98d05921810ba05b15
  • MD5: 35378cd1450aab1de37f567a81f2fddd

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: d16f8d7b89457de7"
        threat_level = "medium"
        first_seen = "2025-07-08"
    condition:
        hash.sha256(0, filesize) == "d16f8d7b89457de7c3175fbe6873ab64b3e8243edb252e98d05921810ba05b15"
}

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 d16f8d7b89457de7c3175fbe6873ab64b3e8243edb252e98d05921810ba05b15 # MD5 35378cd1450aab1de37f567a81f2fddd
TypeValueNote
sha256 d16f8d7b89457de7c3175fbe6873ab64b3e8243edb252e98d05921810ba05b15 Sample:MassLogger
md5 35378cd1450aab1de37f567a81f2fddd Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi