MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA25604a80cbfdbc1428ea6a1b6377bdd9d164163abf0ac1460e59db8862cdc322382
MD5710c5b39e88d0777f13ce8480a7f162e
File Typeexe
Size614.0 KB
First Seen2025-06-17
File NamePurchase Order.exe
Tagsexe, MassLogger, Spam-ITA

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: 04a80cbfdbc1428ea6a1b6377bdd9d164163abf0ac1460e59db8862cdc322382
  • MD5: 710c5b39e88d0777f13ce8480a7f162e

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: 04a80cbfdbc1428e"
        threat_level = "medium"
        first_seen = "2025-06-17"
    condition:
        hash.sha256(0, filesize) == "04a80cbfdbc1428ea6a1b6377bdd9d164163abf0ac1460e59db8862cdc322382"
}

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 04a80cbfdbc1428ea6a1b6377bdd9d164163abf0ac1460e59db8862cdc322382 # MD5 710c5b39e88d0777f13ce8480a7f162e
TypeValueNote
sha256 04a80cbfdbc1428ea6a1b6377bdd9d164163abf0ac1460e59db8862cdc322382 Sample:MassLogger
md5 710c5b39e88d0777f13ce8480a7f162e Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi