Emotet | Tehdit Seviyesi: critical | Tür: Loader

Kriptografik Tanımlayıcılar

SHA25631fb4bf411dcd7fcb860bdb1db26859290b047b39b94638a7d4fd2a46d323e98
MD59eae6f49a02d6eb9f75af7bbf4349808
Dosya Türüvbs
Boyut89.0 KB
İlk Görülme2023-03-23
Dosya Adıvbn540.vbs
EtiketlerEmotet, vbs

Malware Ailesi: Emotet

Emotet, tehlikeli botnet'tir.

TürLoader
Programlama DiliC
Hedef PlatformWindows
C2 ProtokolüHTTP
AmaçKötü amaçlı yazılım dağıtımı
İlk Görülen Yıl2014
Diğer İsimlerHeodo

Tehdit Göstergeleri (IOC)

  • SHA256: 31fb4bf411dcd7fcb860bdb1db26859290b047b39b94638a7d4fd2a46d323e98
  • MD5: 9eae6f49a02d6eb9f75af7bbf4349808

Sistem Temizleme Rehberi

  1. Sistemi ağdan ayırın — Loader başka zararlı yazılım indiriyor olabilir
  2. İndirilen tüm payload'ları analiz edin
  3. Tüm ağ trafiğini inceleyin, şüpheli bağlantıları kesin
  4. Antivirüs ile tam tarama yapın
  5. 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 — マルウェアプロファイル

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.

マルウェアの種類
Loader
プログラミング言語
C
C2プロトコル
HTTP
標的システム
Windows
別名 (AKA)
Heodo

技術詳細

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

アトリビューション / 脅威アクター

TA542 (MUMMY SPIDER) - Ukrayna kokenli oldugu dusunulen organizasyon. 2021'de Europol/FBI tarafindan coguyla tutuklandi; 2022'de geri dondu.

機能と挙動

Payload İndirme
Süreç Enjeksiyonu
Modüler Mimari
Kimlik Bilgisi Hırsızlığı
Yanal Hareket
Kalıcılık
Anti-VM/Sandbox
İkincil Payload Dağıtımı

IOCリスト (8 件の指標)

IOC — Emotet
# 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
タイプメモ
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

C2サーバー (このファミリーで7台のサーバーを記録)

アドレス タイプ ポート プロトコル ステータス
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

C2アドレスはKEYDALチームが手動で検証したマルウェア検体のみに基づいて提供されています。商用利用は禁止です。

タグ
emotetloadermalwarecriticalsha256analizzenginleştirilmiş