MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256f392014705212a3cbcf103cf2da4a8256294f9dc4f14339ce4e9467236ebbce0
MD5058566bc4af256eebc88628ecf48e3d6
File Typeexe
Size1010.5 KB
First Seen2025-07-07
File Namef392014705212a3cbcf103cf2da4a8256294f9dc4f14339ce4e9467236ebbce0
Tagsexe, MassLogger

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: f392014705212a3cbcf103cf2da4a8256294f9dc4f14339ce4e9467236ebbce0
  • MD5: 058566bc4af256eebc88628ecf48e3d6

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: f392014705212a3c"
        threat_level = "medium"
        first_seen = "2025-07-07"
    condition:
        hash.sha256(0, filesize) == "f392014705212a3cbcf103cf2da4a8256294f9dc4f14339ce4e9467236ebbce0"
}

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 f392014705212a3cbcf103cf2da4a8256294f9dc4f14339ce4e9467236ebbce0 # MD5 058566bc4af256eebc88628ecf48e3d6
TypeValueNote
sha256 f392014705212a3cbcf103cf2da4a8256294f9dc4f14339ce4e9467236ebbce0 Sample:MassLogger
md5 058566bc4af256eebc88628ecf48e3d6 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi