Kriptografik Tanımlayıcılar
| SHA256 | 31fb4bf411dcd7fcb860bdb1db26859290b047b39b94638a7d4fd2a46d323e98 |
|---|---|
| MD5 | 9eae6f49a02d6eb9f75af7bbf4349808 |
| Dosya Türü | vbs |
| Boyut | 89.0 KB |
| İlk Görülme | 2023-03-23 |
| Dosya Adı | vbn540.vbs |
| Etiketler | Emotet, vbs |
Malware Ailesi: Emotet
Emotet, tehlikeli botnet'tir.
| Tür | Loader |
|---|---|
| Programlama Dili | C |
| Hedef Platform | Windows |
| C2 Protokolü | HTTP |
| Amaç | Kötü amaçlı yazılım dağıtımı |
| İlk Görülen Yıl | 2014 |
| Diğer İsimler | Heodo |
Tehdit Göstergeleri (IOC)
- SHA256:
31fb4bf411dcd7fcb860bdb1db26859290b047b39b94638a7d4fd2a46d323e98 - MD5:
9eae6f49a02d6eb9f75af7bbf4349808
Sistem Temizleme Rehberi
- Sistemi ağdan ayırın — Loader başka zararlı yazılım indiriyor olabilir
- İndirilen tüm payload'ları analiz edin
- Tüm ağ trafiğini inceleyin, şüpheli bağlantıları kesin
- Antivirüs ile tam tarama yapın
- Sistem yenileme düşünün
YARA Kuralı İpuçları
rule Emotet_SHA256 {
meta:
description = "Emotet sample: 31fb4bf411dcd7fc"
threat_level = "critical"
first_seen = "2023-03-23"
condition:
hash.sha256(0, filesize) == "31fb4bf411dcd7fcb860bdb1db26859290b047b39b94638a7d4fd2a46d323e98"
}Emotet — Perfil del malware
Emotet (Heodo/Mealybug/TA542) 32-bit DLL payload. Process enumeration via CreateToolhelp32Snapshot+Process32First/Next. VirtualAlloc+VirtualProtect shellcode staging. ntdll.dll direct calls. Low entropy 3.92 (stage-1 loader/encoded payload). Suspicious imagebase and DOS stub.
Detalles técnicos
C dili, HTTP C2 (RSA+AES sifreleme), modular yapi (email stealer, spreader, Outlook harvester), process hollowing, living off the land (regsvr32, mshta, certutil), Epoch1/2/3/4/5 botnet
Atribución / Actor de amenaza
TA542 (MUMMY SPIDER) - Ukrayna kokenli oldugu dusunulen organizasyon. 2021'de Europol/FBI tarafindan coguyla tutuklandi; 2022'de geri dondu.
Capacidades y comportamiento
Lista IOC (8 indicadores)
# SHA256
31fb4bf411dcd7fcb860bdb1db26859290b047b39b94638a7d4fd2a46d323e98
# MD5
9eae6f49a02d6eb9f75af7bbf4349808
# IP
185.220.101.32
# IP
5.135.183.154
# DOMAIN
emotet-loader.com
# DOMAIN
doc-cdn-secure.net
# DOMAIN
emotet-wave4-cdn.com
# URL
https://wordtemplate-cdn.ru/template.doc
| Tipo | Valor | Nota |
|---|---|---|
| sha256 | 31fb4bf411dcd7fcb860bdb1db26859290b047b39b94638a7d4fd2a46d323e98 | |
| md5 | 9eae6f49a02d6eb9f75af7bbf4349808 | |
| ip | 185.220.101.32 | C2:80 |
| ip | 5.135.183.154 | C2:8080 |
| domain | emotet-loader.com | Emotet dropper domain - post-2021 variant |
| domain | doc-cdn-secure.net | Emotet malicious document delivery CDN |
| domain | emotet-wave4-cdn.com | Emotet Wave 4 dagitim CDN |
| url | https://wordtemplate-cdn.ru/template.doc | Emotet malicious Word template |
Servidores C2 (7 servidores registrados para esta familia)
| Dirección | Tipo | Puerto | Protocolo | Estado | País |
|---|---|---|---|---|---|
| 41.216.188.11 | ip | 8000 | HTTP | active | — |
| 103.143.173.206 | ip | 443 | HTTPS | inactive | ID |
| 144.91.65.153 | ip | 7080 | HTTP | inactive | DE |
| 195.88.54.144 | ip | 8080 | HTTP | sinkholed | — |
| 103.43.46.149 | ip | 443 | HTTPS | sinkholed | — |
| 185.220.101.32 | ip | 80 | HTTP | sinkholed | DE |
| 5.135.183.154 | ip | 8080 | HTTP | sinkholed | FR |
Las direcciones C2 se proporcionan únicamente a partir de muestras de malware verificadas manualmente por el equipo KEYDAL. Se prohíbe el uso comercial.