Kriptografik Tanımlayıcılar
| SHA256 | b2b398374fed09425fb6fe6986b77977b221a9160f3dacc5f5cb01c99643b8d5 |
|---|---|
| MD5 | a6fa2e86006a76b8f28ec150a0ad761c |
| Dosya Türü | dll |
| Boyut | 768.0 KB |
| İlk Görülme | 2021-11-24 |
| Dosya Adı | SecuriteInfo.com.Suspicious.Win32.Save.a.20268.31276 |
| Etiketler | dll, Dridex |
Malware Ailesi: Dridex
Dridex, Evil Corp trojanıdır.
| Tür | Banking Trojan |
|---|---|
| Programlama Dili | C++ |
| Hedef Platform | Windows |
| C2 Protokolü | HTTPS |
| Amaç | Bankacılık trojanı |
| İlk Görülen Yıl | 2012 |
| Diğer İsimler | Bugat |
Tehdit Göstergeleri (IOC)
- SHA256:
b2b398374fed09425fb6fe6986b77977b221a9160f3dacc5f5cb01c99643b8d5 - MD5:
a6fa2e86006a76b8f28ec150a0ad761c
Bu örneğin tüm hash değerlerini VirusTotal üzerinde doğrulayabilirsiniz.
Sistem Temizleme Rehberi
- Sistemi ağdan ayırın — ethernet çıkarın, Wi-Fi devre dışı bırakın
- Görev Yöneticisi'nden şüpheli process'leri sonlandırın
- Malwarebytes veya Kaspersky ile tam sistem taraması yapın
- HKCU\Software\Microsoft\Windows\CurrentVersion\Run kayıtlarını kontrol edin
- Yeni oluşturulan görevleri Task Scheduler'dan inceleyin
- Tüm hesap şifrelerinizi güvenli bir cihazdan değiştirin
- Gerekirse Windows'u yeniden yükleyin ve verilerinizi temiz bir yedeğe geri alın
YARA Kuralı İpuçları
rule Dridex_SHA256 {
meta:
description = "Dridex sample: b2b398374fed0942"
threat_level = "critical"
first_seen = "2021-11-24"
condition:
hash.sha256(0, filesize) == "b2b398374fed09425fb6fe6986b77977b221a9160f3dacc5f5cb01c99643b8d5"
}
Dridex — Malware Profile
Dridex Bugat TA505 banking trojan. Chrome/Firefox form hooking with obfuscated strings. DirectUI RTTI.
Technical Details
Dridex (Bugat/Cridex) is a modular banking trojan operated by TA505/Evil Corp since 2011. Uses peer-to-peer botnet architecture for C2 communication to resist takedowns. Modules: form grabber, VNC backdoor, network proxy, credential stealer, spread module. Encrypted communication: RC4 + custom protocol over HTTP. Delivered via Microsoft Office macro phishing (VBA macros). Used to deliver: BitPaymer, WastedLocker, Grief (PayOrGrief) ransomware. Evil Corp sanctioned by US Treasury October 2019, making ransom payments illegal for US entities. Dridex infrastructure heavily overlaps with Locky ransomware campaigns. Botnet IDs (bot IDs): 220, 444, 7777, multiple active botnets simultaneously.
Attribution / Threat Actor
Evil Corp (TA505), Maksim Yakubets (indicted by FBI)
Capabilities & Behavior
IOC List (2 indicators)
# SHA256
b2b398374fed09425fb6fe6986b77977b221a9160f3dacc5f5cb01c99643b8d5
# MD5
a6fa2e86006a76b8f28ec150a0ad761c
| Type | Value | Note |
|---|---|---|
| sha256 | b2b398374fed09425fb6fe6986b77977b221a9160f3dacc5f5cb01c99643b8d5 | Sample:Dridex |
| md5 | a6fa2e86006a76b8f28ec150a0ad761c | Sample:Dridex |
C2 Servers (3 recorded servers for this family)
| Address | Type | Port | Protocol | Status | Country |
|---|---|---|---|---|---|
| 79.141.164.52 | ip | 4444 | TCP | sinkholed | RO |
| 185.234.218.151 | ip | 4444 | HTTPS | sinkholed | RU |
| 77.73.133.84 | ip | 443 | HTTPS | sinkholed | BG |
C2 addresses are provided only from malware samples manually verified by the KEYDAL team. Commercial use is prohibited.