Dridex | Threat Level: critical | Type: Banking Trojan

Cryptographic Identifiers

SHA256a76a135b91daa1648d38c8bd2b732f84df0ca659ccafd82e30d9090c5b7c1ff4
MD59eaa7593d74fed8ec8959e8591d35c72
File Typexlsx
Size65.5 KB
First Seen2021-11-22
File NameConfirm_8536.xlsb
TagsDridex, xlsx

Malware Family: Dridex

Dridex, Evil Corp trojanıdır.

TypeBanking Trojan
Programming LanguageC++
Target PlatformWindows
C2 ProtocolHTTPS
PurposeBankacılık trojanı
First Seen Year2012
AliasesBugat

Threat Indicators (IOC)

  • SHA256: a76a135b91daa1648d38c8bd2b732f84df0ca659ccafd82e30d9090c5b7c1ff4
  • MD5: 9eaa7593d74fed8ec8959e8591d35c72

You can verify all hash values of this sample on VirusTotal.

System Cleanup Guide

  1. Disconnect the system from the network — unplug ethernet, disable Wi-Fi
  2. Terminate suspicious processes from Task Manager
  3. Run a full system scan with Malwarebytes or Kaspersky
  4. HKCU\Software\Microsoft\Windows\CurrentVersion\Run kayıtlarını kontrol edin
  5. Review newly created tasks in Task Scheduler
  6. Change all your account passwords from a clean device
  7. Gerekirse Windows'u yeniden yükleyin ve verilerinizi temiz bir yedeğe geri alın

YARA Rule Hints

rule Dridex_SHA256 {
    meta:
        description = "Dridex sample: a76a135b91daa164"
        threat_level = "critical"
        first_seen = "2021-11-22"
    condition:
        hash.sha256(0, filesize) == "a76a135b91daa1648d38c8bd2b732f84df0ca659ccafd82e30d9090c5b7c1ff4"
}

Dridex — Malware Profile

Dridex Bugat TA505 banking trojan. Chrome/Firefox form hooking with obfuscated strings. DirectUI RTTI.

Malware Type
Other
Programming Language
C++
C2 Protocol
HTTPS
Target Systems
Windows
Also Known As (AKA)
Bugat

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

Zararlı Yazılım Aktivitesi
Kalıcılık Mekanizması
C2 İletişimi
Anti-Analiz

IOC List (2 indicators)

IOC — Dridex
# SHA256 a76a135b91daa1648d38c8bd2b732f84df0ca659ccafd82e30d9090c5b7c1ff4 # MD5 9eaa7593d74fed8ec8959e8591d35c72
TypeValueNote
sha256 a76a135b91daa1648d38c8bd2b732f84df0ca659ccafd82e30d9090c5b7c1ff4 Sample:Dridex
md5 9eaa7593d74fed8ec8959e8591d35c72 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.

Tags
dridexbanking trojanmalwarecriticalsha256hash-analizi