MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA25692153eb23f0d42436672367dd42ae049405ce0e7ac78e8c41b8e94a17e128b46
MD574cf077ccbb0cb7411732dd7dbdedfe6
File Typeexe
Size507.0 KB
First Seen2025-06-10
File Name92153eb23f0d42436672367dd42ae049405ce0e7ac78e8c41b8e94a17e128b46
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: 92153eb23f0d42436672367dd42ae049405ce0e7ac78e8c41b8e94a17e128b46
  • MD5: 74cf077ccbb0cb7411732dd7dbdedfe6

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: 92153eb23f0d4243"
        threat_level = "medium"
        first_seen = "2025-06-10"
    condition:
        hash.sha256(0, filesize) == "92153eb23f0d42436672367dd42ae049405ce0e7ac78e8c41b8e94a17e128b46"
}

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 92153eb23f0d42436672367dd42ae049405ce0e7ac78e8c41b8e94a17e128b46 # MD5 74cf077ccbb0cb7411732dd7dbdedfe6
TypeValueNote
sha256 92153eb23f0d42436672367dd42ae049405ce0e7ac78e8c41b8e94a17e128b46 Sample:MassLogger
md5 74cf077ccbb0cb7411732dd7dbdedfe6 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi