dridex | 6bf9cd30ab801aa6794ba8736e9665d259e4d837a8c599b83c325cdbd50be5b5

General

Target

6bf9cd30ab801aa6794ba8736e9665d259e4d837a8c599b83c325cdbd50be5b5.dll
Size

184KB
MD5

5380e4a025672b404d98f11da60d82d0
SHA1

78bdf1fad42d814bc97d8f95400a0944dd1a286c
SHA256

6bf9cd30ab801aa6794ba8736e9665d259e4d837a8c599b83c325cdbd50be5b5
SHA512

f6342409b44862171448559ade03c238225f73d2b3900abf832e58c5e8b048118b9408d4c9977f6853c11986455a2f69ecad4c10bab7c33a9bb9322350d30466

Score

10^/10

dridex 111 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

111

C2

162.13.114.59:443

70.39.99.196:8172

37.187.115.122:6601

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/1844-4-0x0000000074CE0000-0x0000000074D10000-memory.dmp	dridex_ldr
behavioral1/memory/1844-6-0x0000000074CE0000-0x0000000074CFF000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

6 1844 rundll32.exe
8 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
6	1844	rundll32.exe
8	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 744 wrote to memory of 1844	744	rundll32.exe	rundll32.exe
PID 744 wrote to memory of 1844	744	rundll32.exe	rundll32.exe
PID 744 wrote to memory of 1844	744	rundll32.exe	rundll32.exe
PID 744 wrote to memory of 1844	744	rundll32.exe	rundll32.exe
PID 744 wrote to memory of 1844	744	rundll32.exe	rundll32.exe
PID 744 wrote to memory of 1844	744	rundll32.exe	rundll32.exe
PID 744 wrote to memory of 1844	744	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\6bf9cd30ab801aa6794ba8736e9665d259e4d837a8c599b83c325cdbd50be5b5.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:744

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\6bf9cd30ab801aa6794ba8736e9665d259e4d837a8c599b83c325cdbd50be5b5.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/908-7-0x000007FEF7590000-0x000007FEF780A000-memory.dmp

Filesize
2.5MB

Download
memory/1844-2-0x0000000000000000-mapping.dmp

Download
memory/1844-3-0x0000000075E51000-0x0000000075E53000-memory.dmp

Filesize
8KB

Download
memory/1844-4-0x0000000074CE0000-0x0000000074D10000-memory.dmp

Filesize
192KB

Download
memory/1844-5-0x0000000000150000-0x0000000000156000-memory.dmp

Filesize
24KB

Download
memory/1844-6-0x0000000074CE0000-0x0000000074CFF000-memory.dmp

Filesize
124KB

Download

Analysis

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