dridex | bcd661ee773a308f89d3960da729405954b8280e56c0eb69eaa696e28071a960

General

Target

bcd661ee773a308f89d3960da729405954b8280e56c0eb69eaa696e28071a960.dll
Size

188KB
MD5

1557ebdb491ad6a8b7c42d086059eb7d
SHA1

ffef1a101fd7edc56cbc06549c3ff39e9301fbea
SHA256

bcd661ee773a308f89d3960da729405954b8280e56c0eb69eaa696e28071a960
SHA512

16899209a8b017dba296386663ffae03c62b6338ced203bb75949ba7ce9615b2fde2f5f75c14869b9b632caf9ebc7dceab38cdd7253d38fe019b00ce077863be

Score

10^/10

dridex 111 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

111

C2

116.251.211.158:443

216.10.242.142:6601

37.247.35.137:6601

rc4.plain

Signatures

Dridex
Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.
botnet dridex

Dridex Loader 2 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

Processes:

resource	yara_rule
behavioral1/memory/1504-4-0x0000000074BE0000-0x0000000074C11000-memory.dmp	dridex_ldr
behavioral1/memory/1504-6-0x0000000074BE0000-0x0000000074BFF000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

4 1504 rundll32.exe
7 1504 rundll32.exe
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

rundll32.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA rundll32.exe

flow	pid	process
4	1504	rundll32.exe
7	1504	rundll32.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 776 wrote to memory of 1504	776	rundll32.exe	rundll32.exe
PID 776 wrote to memory of 1504	776	rundll32.exe	rundll32.exe
PID 776 wrote to memory of 1504	776	rundll32.exe	rundll32.exe
PID 776 wrote to memory of 1504	776	rundll32.exe	rundll32.exe
PID 776 wrote to memory of 1504	776	rundll32.exe	rundll32.exe
PID 776 wrote to memory of 1504	776	rundll32.exe	rundll32.exe
PID 776 wrote to memory of 1504	776	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\bcd661ee773a308f89d3960da729405954b8280e56c0eb69eaa696e28071a960.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:776
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\bcd661ee773a308f89d3960da729405954b8280e56c0eb69eaa696e28071a960.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:1504

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1504-2-0x0000000000000000-mapping.dmp

Download
memory/1504-3-0x0000000076071000-0x0000000076073000-memory.dmp

Filesize
8KB

Download
memory/1504-4-0x0000000074BE0000-0x0000000074C11000-memory.dmp

Filesize
196KB

Download
memory/1504-5-0x0000000000180000-0x0000000000186000-memory.dmp

Filesize
24KB

Download
memory/1504-6-0x0000000074BE0000-0x0000000074BFF000-memory.dmp

Filesize
124KB

Download
memory/1688-7-0x000007FEF6200000-0x000007FEF647A000-memory.dmp

Filesize
2.5MB

Download

Analysis

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