Datei Kimligi
| SHA256 | 0452908a27eb9abf853e8d1b099322a77f2ecb4096be2648ef49ec1d5c9d6d45 |
|---|---|
| Etiket | Heodo (Emotet'in yeniden adlandirilmis hali) |
| Format | 32-bit Windows DLL |
| Größe | 129.024 byte |
| String Sayisi | 506 (agir paketli) |
Analiz Bulgulari
Bu ornek, Emotet'in modüler DLL mimarisinin bir parcasidir. Yuksek entropy ve dusuk string sayisi (506), guclu bir packer veya sifreleme katmaninin varligina isaret etmektedir. Statik string analizinde cleartext C2, URL veya email IOC bulunamadi.
Emotet Architektursi
- Loader DLL: Ana modul, bellekte calisir, diskte nadir iz brakir
- C2 Haberlesme: Sifreli HTTP POST, C2 listesi sablonlarda sakli
- Modüler: Spambot, credential harvester, lateral movement modul'leri indirir
- Payload Indirme: IcedID, Qakbot, Cobalt Strike gibi ikinci asama payload'lar yukler
Emotet Hakkinda
Emotet (ilk olarak 2014'te bir banking trojan olarak ortaya cikti), 2021'de Europol operasyonuyla kapatildi, ancak 2021 sonunda yeniden aktif hale geldi. Moduler yapisi sayesinde email spam gonderimi, credential theft ve enterprise networklerinde lateral movement gerceklestirebilir. Cobalt Strike ve ransomware ailelerinin birincil delivery mekanizmasindan biri olarak bilinir.
IOC
| SHA256 | 0452908a27eb9abf853e8d1b099322a77f2ecb4096be2648ef49ec1d5c9d6d45 |
|---|---|
| Format | 32-bit DLL (modular component) |
| C2 | Bellekte cozulen sablonlanmis IP listesi |
Emotet — Malware-Profil
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.
Technische Details
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
Attribution / Bedrohungsakteur
TA542 (MUMMY SPIDER) - Ukrayna kokenli oldugu dusunulen organizasyon. 2021'de Europol/FBI tarafindan coguyla tutuklandi; 2022'de geri dondu.
Fähigkeiten & Verhalten
IOC-Liste (1 Indikatoren)
# SHA256
0452908a27eb9abf853e8d1b099322a77f2ecb4096be2648ef49ec1d5c9d6d45
| Typ | Wert | Bemerkung |
|---|---|---|
| sha256 | 0452908a27eb9abf853e8d1b099322a77f2ecb4096be2648ef49ec1d5c9d6d45 |
C2-Server (7 erfasste Server für diese Familie)
| Adresse | Typ | Port | Protokoll | Status | Land |
|---|---|---|---|---|---|
| 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-Adressen stammen ausschließlich aus vom KEYDAL-Team manuell verifizierten Malware-Samples. Kommerzielle Nutzung ist untersagt.