MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256c0caed5221f6208d99cce4157785af2871c52ea97b3d9c595a4b7d1a1e970490
MD5d7f964c1c398a10eb83e534644b81e75
File Typevbe
Size969.1 KB
First Seen2025-08-05
File Namemo780054432.vbe
TagsMassLogger, vbe

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: c0caed5221f6208d99cce4157785af2871c52ea97b3d9c595a4b7d1a1e970490
  • MD5: d7f964c1c398a10eb83e534644b81e75

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: c0caed5221f6208d"
        threat_level = "medium"
        first_seen = "2025-08-05"
    condition:
        hash.sha256(0, filesize) == "c0caed5221f6208d99cce4157785af2871c52ea97b3d9c595a4b7d1a1e970490"
}

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 c0caed5221f6208d99cce4157785af2871c52ea97b3d9c595a4b7d1a1e970490 # MD5 d7f964c1c398a10eb83e534644b81e75
TypeValueNote
sha256 c0caed5221f6208d99cce4157785af2871c52ea97b3d9c595a4b7d1a1e970490 Sample:MassLogger
md5 d7f964c1c398a10eb83e534644b81e75 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi