MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256883ab4ff9fc81ba786b8ea6c5c0112d0973dcb659cf948c0030ea175ab4b3830
MD55b1263b3be97819c163d00569b61cd7c
File Typeexe
Size1086.0 KB
First Seen2025-07-07
File NameSLIP-USD72,660.64.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: 883ab4ff9fc81ba786b8ea6c5c0112d0973dcb659cf948c0030ea175ab4b3830
  • MD5: 5b1263b3be97819c163d00569b61cd7c

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: 883ab4ff9fc81ba7"
        threat_level = "medium"
        first_seen = "2025-07-07"
    condition:
        hash.sha256(0, filesize) == "883ab4ff9fc81ba786b8ea6c5c0112d0973dcb659cf948c0030ea175ab4b3830"
}

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 883ab4ff9fc81ba786b8ea6c5c0112d0973dcb659cf948c0030ea175ab4b3830 # MD5 5b1263b3be97819c163d00569b61cd7c
TypeValueNote
sha256 883ab4ff9fc81ba786b8ea6c5c0112d0973dcb659cf948c0030ea175ab4b3830 Sample:MassLogger
md5 5b1263b3be97819c163d00569b61cd7c Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi