dridex | da81aa0dd37baccdbdc7f7f9a3619d6e85155f8bd67fcd2fafdbe534443fdc0c

General

Target

da81aa0dd37baccdbdc7f7f9a3619d6e85155f8bd67fcd2fafdbe534443fdc0c.dll
Size

966KB
MD5

340994098deb6bf6fa91f73350af7c15
SHA1

a13e3401f4a3741bdcb2f16cb0c111b04ce318fb
SHA256

da81aa0dd37baccdbdc7f7f9a3619d6e85155f8bd67fcd2fafdbe534443fdc0c
SHA512

3ce706f04dbe866ac020648bc58a5940b06dfc8d23e87ea570d2af0037b6bd320976f87168ec327d9a442c3762c9e7414cbf026b89b736bb42e2d20e269ad30d

Score

10^/10

dridex 10444 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

10444

C2

146.185.170.249:443

62.75.251.60:6601

185.148.168.25:2303

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/1336-62-0x0000000074C50000-0x0000000074D66000-memory.dmp	dridex_ldr
behavioral1/memory/1336-61-0x0000000074C50000-0x0000000074C8D000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

4 1336 rundll32.exe
7 1336 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	1336	rundll32.exe
7	1336	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 1084 wrote to memory of 1336	1084	rundll32.exe	rundll32.exe
PID 1084 wrote to memory of 1336	1084	rundll32.exe	rundll32.exe
PID 1084 wrote to memory of 1336	1084	rundll32.exe	rundll32.exe
PID 1084 wrote to memory of 1336	1084	rundll32.exe	rundll32.exe
PID 1084 wrote to memory of 1336	1084	rundll32.exe	rundll32.exe
PID 1084 wrote to memory of 1336	1084	rundll32.exe	rundll32.exe
PID 1084 wrote to memory of 1336	1084	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\da81aa0dd37baccdbdc7f7f9a3619d6e85155f8bd67fcd2fafdbe534443fdc0c.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1084

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\da81aa0dd37baccdbdc7f7f9a3619d6e85155f8bd67fcd2fafdbe534443fdc0c.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1336

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1336-59-0x0000000000000000-mapping.dmp

Download
memory/1336-60-0x00000000752F1000-0x00000000752F3000-memory.dmp

Filesize
8KB

Download
memory/1336-62-0x0000000074C50000-0x0000000074D66000-memory.dmp

Filesize
1.1MB

Download
memory/1336-61-0x0000000074C50000-0x0000000074C8D000-memory.dmp

Filesize
244KB

Download
memory/1336-63-0x00000000001B0000-0x00000000001B1000-memory.dmp

Filesize
4KB

Download

Analysis

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