dridex | 5f35c99792dab2db7ebbe20eebb2a925b6a0737cea7811fec7c8ba25f7586ff7

General

Target

5f35c99792dab2db7ebbe20eebb2a925b6a0737cea7811fec7c8ba25f7586ff7.dll
Size

639KB
MD5

5c549ac8c24080c6859893789c2153bf
SHA1

d7bd18d8d228dcf7e7993951ca1f712abf17fab2
SHA256

5f35c99792dab2db7ebbe20eebb2a925b6a0737cea7811fec7c8ba25f7586ff7
SHA512

e999785494e64058a3fb22fe0e741b005121ce2c868d68eb6ede13da391461f69874ce6b5fc93a103e6f0a7b7386cd06998696166da1d555891b1e7e1d371701

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/1844-61-0x0000000075330000-0x000000007536D000-memory.dmp	dridex_ldr
behavioral1/memory/1844-62-0x0000000075330000-0x00000000753F3000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

4 1844 rundll32.exe
6 1844 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	1844	rundll32.exe
6	1844	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 1100 wrote to memory of 1844	1100	rundll32.exe	rundll32.exe
PID 1100 wrote to memory of 1844	1100	rundll32.exe	rundll32.exe
PID 1100 wrote to memory of 1844	1100	rundll32.exe	rundll32.exe
PID 1100 wrote to memory of 1844	1100	rundll32.exe	rundll32.exe
PID 1100 wrote to memory of 1844	1100	rundll32.exe	rundll32.exe
PID 1100 wrote to memory of 1844	1100	rundll32.exe	rundll32.exe
PID 1100 wrote to memory of 1844	1100	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\5f35c99792dab2db7ebbe20eebb2a925b6a0737cea7811fec7c8ba25f7586ff7.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1100

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\5f35c99792dab2db7ebbe20eebb2a925b6a0737cea7811fec7c8ba25f7586ff7.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1844

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/1844-59-0x0000000000000000-mapping.dmp

Download
memory/1844-60-0x0000000075A31000-0x0000000075A33000-memory.dmp

Filesize
8KB

Download
memory/1844-61-0x0000000075330000-0x000000007536D000-memory.dmp

Filesize
244KB

Download
memory/1844-62-0x0000000075330000-0x00000000753F3000-memory.dmp

Filesize
780KB

Download
memory/1844-63-0x0000000000180000-0x0000000000181000-memory.dmp

Filesize
4KB

Download

Analysis

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