MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256fe223090ea59abc54312c48ed89765ea5c8821df78134adc094cd799973dde39
MD50fadeb197ff352da80b7850c91ad3cce
File Typezip
Size1442.0 KB
First Seen2025-06-20
File Namen010_DHL_FINAL_.uue
TagsMassLogger, zip

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: fe223090ea59abc54312c48ed89765ea5c8821df78134adc094cd799973dde39
  • MD5: 0fadeb197ff352da80b7850c91ad3cce

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: fe223090ea59abc5"
        threat_level = "medium"
        first_seen = "2025-06-20"
    condition:
        hash.sha256(0, filesize) == "fe223090ea59abc54312c48ed89765ea5c8821df78134adc094cd799973dde39"
}

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 fe223090ea59abc54312c48ed89765ea5c8821df78134adc094cd799973dde39 # MD5 0fadeb197ff352da80b7850c91ad3cce
TypeValueNote
sha256 fe223090ea59abc54312c48ed89765ea5c8821df78134adc094cd799973dde39 Sample:MassLogger
md5 0fadeb197ff352da80b7850c91ad3cce Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi