MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256dc717f613c531df66e04f17cb2718064c1e3f469c585008eebf98cd69928274f
MD5a0256a1a007911f53f83941f5afa5d16
File Typeexe
Size1142.5 KB
First Seen2025-07-01
File NameTeklif Talebi - Talep No-25T1847_docx.exe
Tagsexe, geo, MassLogger, TUR

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: dc717f613c531df66e04f17cb2718064c1e3f469c585008eebf98cd69928274f
  • MD5: a0256a1a007911f53f83941f5afa5d16

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: dc717f613c531df6"
        threat_level = "medium"
        first_seen = "2025-07-01"
    condition:
        hash.sha256(0, filesize) == "dc717f613c531df66e04f17cb2718064c1e3f469c585008eebf98cd69928274f"
}

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 dc717f613c531df66e04f17cb2718064c1e3f469c585008eebf98cd69928274f # MD5 a0256a1a007911f53f83941f5afa5d16
TypeValueNote
sha256 dc717f613c531df66e04f17cb2718064c1e3f469c585008eebf98cd69928274f Sample:MassLogger
md5 a0256a1a007911f53f83941f5afa5d16 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi