MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256e2d8e8fa709ef3f04876433c6b10d45b354cd2a68c230361735e113329613f83
MD585bf397cb3b4f6bf61790117ee859a00
File Typeexe
Size1020.5 KB
First Seen2025-06-17
File NameERAN SİPARİŞ 0606_docx.exe
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: e2d8e8fa709ef3f04876433c6b10d45b354cd2a68c230361735e113329613f83
  • MD5: 85bf397cb3b4f6bf61790117ee859a00

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: e2d8e8fa709ef3f0"
        threat_level = "medium"
        first_seen = "2025-06-17"
    condition:
        hash.sha256(0, filesize) == "e2d8e8fa709ef3f04876433c6b10d45b354cd2a68c230361735e113329613f83"
}

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 e2d8e8fa709ef3f04876433c6b10d45b354cd2a68c230361735e113329613f83 # MD5 85bf397cb3b4f6bf61790117ee859a00
TypeValueNote
sha256 e2d8e8fa709ef3f04876433c6b10d45b354cd2a68c230361735e113329613f83 Sample:MassLogger
md5 85bf397cb3b4f6bf61790117ee859a00 Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi