MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256172acccc72c8f76ceb8cd40715399a6f5d318be3002c163e58e9843e891bbe7a
MD55d6bd66a425dd270e72e63c6d150443c
File Typeexe
Size95.5 KB
First Seen2026-01-22
File Namepayload.bin
Tagsexe, MassLogger, stealer

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: 172acccc72c8f76ceb8cd40715399a6f5d318be3002c163e58e9843e891bbe7a
  • MD5: 5d6bd66a425dd270e72e63c6d150443c

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: 172acccc72c8f76c"
        threat_level = "medium"
        first_seen = "2026-01-22"
    condition:
        hash.sha256(0, filesize) == "172acccc72c8f76ceb8cd40715399a6f5d318be3002c163e58e9843e891bbe7a"
}

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 172acccc72c8f76ceb8cd40715399a6f5d318be3002c163e58e9843e891bbe7a # MD5 5d6bd66a425dd270e72e63c6d150443c
TypeValueNote
sha256 172acccc72c8f76ceb8cd40715399a6f5d318be3002c163e58e9843e891bbe7a Sample:MassLogger
md5 5d6bd66a425dd270e72e63c6d150443c Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi