MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA25694838e935face0c847070c4a364b17c8277ee420f6e5918c5b8b61d825c4ec83
MD5337f5bc9f0a0ecb42a49f3cf5cc91b1b
File Typevbe
Size726.1 KB
First Seen2025-06-13
File Nameverygoodpeopleswithbetterchoiceniceforme.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: 94838e935face0c847070c4a364b17c8277ee420f6e5918c5b8b61d825c4ec83
  • MD5: 337f5bc9f0a0ecb42a49f3cf5cc91b1b

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: 94838e935face0c8"
        threat_level = "medium"
        first_seen = "2025-06-13"
    condition:
        hash.sha256(0, filesize) == "94838e935face0c847070c4a364b17c8277ee420f6e5918c5b8b61d825c4ec83"
}

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 94838e935face0c847070c4a364b17c8277ee420f6e5918c5b8b61d825c4ec83 # MD5 337f5bc9f0a0ecb42a49f3cf5cc91b1b
TypeValueNote
sha256 94838e935face0c847070c4a364b17c8277ee420f6e5918c5b8b61d825c4ec83 Sample:MassLogger
md5 337f5bc9f0a0ecb42a49f3cf5cc91b1b Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi