MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA25601db63a854c81a69f00dd3c1a6dee056f3429f078882e33bb2e06d7e48614391
MD5a1a13f3ab6d19f87dd0ddb6d2384a5e2
File Typeexe
Size895.5 KB
First Seen2025-10-07
File Nameajofia.exe
Tagsexe, MassLogger, studiogioeli-it

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: 01db63a854c81a69f00dd3c1a6dee056f3429f078882e33bb2e06d7e48614391
  • MD5: a1a13f3ab6d19f87dd0ddb6d2384a5e2

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: 01db63a854c81a69"
        threat_level = "medium"
        first_seen = "2025-10-07"
    condition:
        hash.sha256(0, filesize) == "01db63a854c81a69f00dd3c1a6dee056f3429f078882e33bb2e06d7e48614391"
}

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 01db63a854c81a69f00dd3c1a6dee056f3429f078882e33bb2e06d7e48614391 # MD5 a1a13f3ab6d19f87dd0ddb6d2384a5e2
TypeValueNote
sha256 01db63a854c81a69f00dd3c1a6dee056f3429f078882e33bb2e06d7e48614391 Sample:MassLogger
md5 a1a13f3ab6d19f87dd0ddb6d2384a5e2 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi