MassLogger | Threat Level: medium | Type: Infostealer
Cryptographic Identifiers
| SHA256 | 9c62a1531f3662bc3e36516d18e3ad4acb6d489da2f47731a3c3be9a68d84819 |
|---|---|
| MD5 | da877ba9ffaa296f08983e1993d7d82e |
| File Type | xlsx |
| Size | 2207.2 KB |
| First Seen | 2025-08-27 |
| File Name | INVOICE NUMBER 20250686.xlam |
| Tags | CVE-2017-11882, MassLogger, xlam, xlsx |
Malware Family: MassLogger
MassLogger, email keylogger'dır.
| Type | Infostealer |
|---|---|
| Programming Language | C#/.NET |
| Target Platform | Windows |
| C2 Protocol | SMTP/FTP |
| Purpose | Email keylogger |
| First Seen Year | 2020 |
Threat Indicators (IOC)
- SHA256:
9c62a1531f3662bc3e36516d18e3ad4acb6d489da2f47731a3c3be9a68d84819 - MD5:
da877ba9ffaa296f08983e1993d7d82e
You can verify all hash values of this sample on VirusTotal.
System Cleanup Guide
- Disconnect the system from the network immediately
- Yeni bir cihazdan banka hesabı, sosyal medya ve e-posta şifrelerini değiştirin
- Move crypto wallets to a new address and abandon the old ones
- Start a full scan with up-to-date antivirus
- Clear saved browser passwords and enable 2FA
- Sign out of all sessions on every affected service
YARA Rule Hints
rule MassLogger_SHA256 {
meta:
description = "MassLogger sample: 9c62a1531f3662bc"
threat_level = "medium"
first_seen = "2025-08-27"
condition:
hash.sha256(0, filesize) == "9c62a1531f3662bc3e36516d18e3ad4acb6d489da2f47731a3c3be9a68d84819"
}
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
9c62a1531f3662bc3e36516d18e3ad4acb6d489da2f47731a3c3be9a68d84819
# MD5
da877ba9ffaa296f08983e1993d7d82e
| Type | Value | Note |
|---|---|---|
| sha256 | 9c62a1531f3662bc3e36516d18e3ad4acb6d489da2f47731a3c3be9a68d84819 | Sample:MassLogger |
| md5 | da877ba9ffaa296f08983e1993d7d82e | Sample:MassLogger |