Dridex Malware Analysis
File Properties
SHA256: 582f2b77cf9f80dd31a175e417f18f0e8a35a6a824a89d9ac6335753b88bb25e
MD5: ff46051b82db9f45e6cb9b9cf8767b97
File Type: xlsm
Size: 111,390 byte
First Seen: 2021-12-06
AV Signature: Dridex
Reported By: GovCERT_CH
Tags: Dridex, xlsm
Static analysis: metadata-based (sample not downloaded)
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 (1 indicators)
# FILEPATH
582f2b77cf9f80dd31a175e417f18f0e8a35a6a824a89d9ac6335753b88bb25e
| Type | Value | Note |
|---|---|---|
| filepath | 582f2b77cf9f80dd31a175e417f18f0e8a35a6a824a89d9ac6335753b88bb25e | 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.