dridex | 0449685533b1208112a7fa57851e4f5e3a6b40549f8b96c83bc7c61a50e4eb4c

General

Target

0449685533b1208112a7fa57851e4f5e3a6b40549f8b96c83bc7c61a50e4eb4c.dll
Size

188KB
MD5

f859275e00f8633dd1230402f02c222f
SHA1

9ba8ea9b50f8a802dd815ac934f3ac361b19b4a7
SHA256

0449685533b1208112a7fa57851e4f5e3a6b40549f8b96c83bc7c61a50e4eb4c
SHA512

179ba8eee7ba004e461e2c923098702df3034d49b3c7d95f7e784234abb420c2ea84fb47882b2d856323b97286aa104fee849a815a1e14726e60365a363584cb

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/1896-4-0x0000000074BE0000-0x0000000074C11000-memory.dmp	dridex_ldr
behavioral1/memory/1896-6-0x0000000074BE0000-0x0000000074BFF000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

4 1896 rundll32.exe
7 1896 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	1896	rundll32.exe
7	1896	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 1896	776	rundll32.exe	rundll32.exe
PID 776 wrote to memory of 1896	776	rundll32.exe	rundll32.exe
PID 776 wrote to memory of 1896	776	rundll32.exe	rundll32.exe
PID 776 wrote to memory of 1896	776	rundll32.exe	rundll32.exe
PID 776 wrote to memory of 1896	776	rundll32.exe	rundll32.exe
PID 776 wrote to memory of 1896	776	rundll32.exe	rundll32.exe
PID 776 wrote to memory of 1896	776	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\0449685533b1208112a7fa57851e4f5e3a6b40549f8b96c83bc7c61a50e4eb4c.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:776
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\0449685533b1208112a7fa57851e4f5e3a6b40549f8b96c83bc7c61a50e4eb4c.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks whether UAC is enabled
  PID:1896

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/1348-7-0x000007FEF74B0000-0x000007FEF772A000-memory.dmp

Filesize
2.5MB

Download
memory/1896-2-0x0000000000000000-mapping.dmp

Download
memory/1896-3-0x0000000076071000-0x0000000076073000-memory.dmp

Filesize
8KB

Download
memory/1896-4-0x0000000074BE0000-0x0000000074C11000-memory.dmp

Filesize
196KB

Download
memory/1896-5-0x0000000000190000-0x0000000000196000-memory.dmp

Filesize
24KB

Download
memory/1896-6-0x0000000074BE0000-0x0000000074BFF000-memory.dmp

Filesize
124KB

Download

Analysis

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