MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA25606dfac9d8e71bd8b14dbcfc678cd5e14908e6921d2600c65d94cf2c467764738
MD5bd8cf56a332a45562140c8354869d98c
File Typevbe
Size825.5 KB
First Seen2025-06-22
File Namelyt5664732.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: 06dfac9d8e71bd8b14dbcfc678cd5e14908e6921d2600c65d94cf2c467764738
  • MD5: bd8cf56a332a45562140c8354869d98c

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: 06dfac9d8e71bd8b"
        threat_level = "medium"
        first_seen = "2025-06-22"
    condition:
        hash.sha256(0, filesize) == "06dfac9d8e71bd8b14dbcfc678cd5e14908e6921d2600c65d94cf2c467764738"
}

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 06dfac9d8e71bd8b14dbcfc678cd5e14908e6921d2600c65d94cf2c467764738 # MD5 bd8cf56a332a45562140c8354869d98c
TypeValueNote
sha256 06dfac9d8e71bd8b14dbcfc678cd5e14908e6921d2600c65d94cf2c467764738 Sample:MassLogger
md5 bd8cf56a332a45562140c8354869d98c Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi