MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256ad94f1a913b31ec1412a784e2f5eda3b9e2d4f09f01b1162ec6a7a39516c47d2
MD50e9150938143596818ce4cf30dae3f87
File Typeexe
Size1026.0 KB
First Seen2025-06-10
File Namead94f1a913b31ec1412a784e2f5eda3b9e2d4f09f01b1162ec6a7a39516c47d2
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: ad94f1a913b31ec1412a784e2f5eda3b9e2d4f09f01b1162ec6a7a39516c47d2
  • MD5: 0e9150938143596818ce4cf30dae3f87

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: ad94f1a913b31ec1"
        threat_level = "medium"
        first_seen = "2025-06-10"
    condition:
        hash.sha256(0, filesize) == "ad94f1a913b31ec1412a784e2f5eda3b9e2d4f09f01b1162ec6a7a39516c47d2"
}

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 ad94f1a913b31ec1412a784e2f5eda3b9e2d4f09f01b1162ec6a7a39516c47d2 # MD5 0e9150938143596818ce4cf30dae3f87
TypeValueNote
sha256 ad94f1a913b31ec1412a784e2f5eda3b9e2d4f09f01b1162ec6a7a39516c47d2 Sample:MassLogger
md5 0e9150938143596818ce4cf30dae3f87 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi