MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256ccbdec866c4dc5272bf35d9e08186c71031cfc63d37e45d96a35d69cdfb5dfe6
MD5140265f9acc7a7b5d70619f54846112c
File Typeexe
Size992.0 KB
First Seen2026-05-19
File NameOFFER CAPEX E2652 xls.pif
Tagsexe, MassLogger

Malware Family: MassLogger

MassLogger, email tabanlı keylogger'dır.

TypeInfostealer
Programming LanguageC#/.NET
Target PlatformWindows
C2 ProtocolSMTP/FTP
PurposeEmail keylogger
First Seen Year2020

Threat Indicators (IOC)

  • SHA256: ccbdec866c4dc5272bf35d9e08186c71031cfc63d37e45d96a35d69cdfb5dfe6
  • MD5: 140265f9acc7a7b5d70619f54846112c

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: ccbdec866c4dc527"
        threat_level = "medium"
        first_seen = "2026-05-19"
    condition:
        hash.sha256(0, filesize) == "ccbdec866c4dc5272bf35d9e08186c71031cfc63d37e45d96a35d69cdfb5dfe6"
}

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 ccbdec866c4dc5272bf35d9e08186c71031cfc63d37e45d96a35d69cdfb5dfe6 # MD5 140265f9acc7a7b5d70619f54846112c
TypeValueNote
sha256 ccbdec866c4dc5272bf35d9e08186c71031cfc63d37e45d96a35d69cdfb5dfe6 Sample:MassLogger
md5 140265f9acc7a7b5d70619f54846112c Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi