Dridex Malware Analysis

File Properties

SHA256: fe1b7296de9d25a7cc1c1c8a98b488e2c65ca5c0431bef190297b621184e9634

MD5: a92052a64d7bc3d0a3b9db6c27120998

File Type: xlsx

Size: 92,669 byte

First Seen: 2021-11-26

AV Signature: Dridex

Reported By: pr0xylife

Tags: Dridex, xlsx

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 fe1b7296de9d25a7cc1c1c8a98b488e2c65ca5c0431bef190297b621184e9634
TypeValueNote
filepath fe1b7296de9d25a7cc1c1c8a98b488e2c65ca5c0431bef190297b621184e9634 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
Dridexxlsx