dridex | e69f933bf97d3b3461c18283eefb2c279d6fc4c02984db9ad57774122b3eb39f

General

Target

e69f933bf97d3b3461c18283eefb2c279d6fc4c02984db9ad57774122b3eb39f.dll
Size

188KB
MD5

e225896c7a227b33f21254a45a3e9a45
SHA1

2867f9ef1aa7228b369ebf2736c577b34fdd539e
SHA256

e69f933bf97d3b3461c18283eefb2c279d6fc4c02984db9ad57774122b3eb39f
SHA512

f0cf4fb214d320e342b7305e8270f7b115e300715b3a712fcd76d688e461f417d89c9cae4df0fca7dd785825a0d0b5b8425995e0501099c46ef0e1bf9f1eb84d

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/1484-4-0x0000000074C20000-0x0000000074C51000-memory.dmp	dridex_ldr
behavioral1/memory/1484-6-0x0000000074C20000-0x0000000074C3F000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

5 1484 rundll32.exe
8 1484 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
5	1484	rundll32.exe
8	1484	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 1088 wrote to memory of 1484	1088	rundll32.exe	rundll32.exe
PID 1088 wrote to memory of 1484	1088	rundll32.exe	rundll32.exe
PID 1088 wrote to memory of 1484	1088	rundll32.exe	rundll32.exe
PID 1088 wrote to memory of 1484	1088	rundll32.exe	rundll32.exe
PID 1088 wrote to memory of 1484	1088	rundll32.exe	rundll32.exe
PID 1088 wrote to memory of 1484	1088	rundll32.exe	rundll32.exe
PID 1088 wrote to memory of 1484	1088	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\e69f933bf97d3b3461c18283eefb2c279d6fc4c02984db9ad57774122b3eb39f.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1088
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\e69f933bf97d3b3461c18283eefb2c279d6fc4c02984db9ad57774122b3eb39f.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:1484

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/1224-7-0x000007FEF7900000-0x000007FEF7B7A000-memory.dmp

Filesize
2.5MB

Download
memory/1484-2-0x0000000000000000-mapping.dmp

Download
memory/1484-3-0x0000000075D61000-0x0000000075D63000-memory.dmp

Filesize
8KB

Download
memory/1484-4-0x0000000074C20000-0x0000000074C51000-memory.dmp

Filesize
196KB

Download
memory/1484-5-0x0000000000140000-0x0000000000146000-memory.dmp

Filesize
24KB

Download
memory/1484-6-0x0000000074C20000-0x0000000074C3F000-memory.dmp

Filesize
124KB

Download

Analysis

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