MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256482fd155382b42cb1775f996c83ae4527701aba2c0b4c38a2205e6707635d7f8
MD55bfe183c85c0822586f3fe68ffd699da
File Typevbe
Size986.1 KB
First Seen2025-08-20
File Namerrckk900876.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: 482fd155382b42cb1775f996c83ae4527701aba2c0b4c38a2205e6707635d7f8
  • MD5: 5bfe183c85c0822586f3fe68ffd699da

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: 482fd155382b42cb"
        threat_level = "medium"
        first_seen = "2025-08-20"
    condition:
        hash.sha256(0, filesize) == "482fd155382b42cb1775f996c83ae4527701aba2c0b4c38a2205e6707635d7f8"
}

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 482fd155382b42cb1775f996c83ae4527701aba2c0b4c38a2205e6707635d7f8 # MD5 5bfe183c85c0822586f3fe68ffd699da
TypeValueNote
sha256 482fd155382b42cb1775f996c83ae4527701aba2c0b4c38a2205e6707635d7f8 Sample:MassLogger
md5 5bfe183c85c0822586f3fe68ffd699da Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi