Dridex Malware Analysis

File Properties

SHA256: fd7658cdf31389ef24c2767f2f909a4b71de55a1232e84c0575675df7bb2faf7

MD5: 8735ca778f0d80a43d44af1ce110ce5c

File Type: dll

Size: 487,424 byte

First Seen: 2021-12-06

AV Signature: Dridex

Imphash: 03540fe05cb0473f2f956a0d0a682262

Reported By: zbetcheckin

Tags: 32, dll, Dridex, exe

Static analysis: metadata-based (sample not downloaded)

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 (1 indicators)

IOC — Dridex
# FILEPATH fd7658cdf31389ef24c2767f2f909a4b71de55a1232e84c0575675df7bb2faf7
TypeValueNote
filepath fd7658cdf31389ef24c2767f2f909a4b71de55a1232e84c0575675df7bb2faf7 PDB

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
32dllDridexexe