dridex | 90b95a7e9b8c465732117863638aa9b2086b9a3b1265e94efc9c63e80e1a1406

General

Target

90b95a7e9b8c465732117863638aa9b2086b9a3b1265e94efc9c63e80e1a1406.dll
Size

188KB
MD5

14c4d320f2ef41575c734fac07c60824
SHA1

74621c36c1dab21a7b5b2e83df49d892ae26b02c
SHA256

90b95a7e9b8c465732117863638aa9b2086b9a3b1265e94efc9c63e80e1a1406
SHA512

37d630cbf3cda91b861dc819404365d6179c03fecc71a6e7ffa52add2beada8a62b5c061f12f8518faa73b4b34b08c85c415da495a7f71e754020ac30171fa69

Score

10^/10

dridex 111 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

111

C2

209.151.236.42:443

91.121.94.86:8172

5.189.144.136:6516

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/1220-5-0x0000000075160000-0x0000000075191000-memory.dmp	dridex_ldr
behavioral1/memory/1220-7-0x0000000075160000-0x000000007517F000-memory.dmp	dridex_ldr

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

5 1220 rundll32.exe
8 1220 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	1220	rundll32.exe
8	1220	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 2008 wrote to memory of 1220	2008	rundll32.exe	rundll32.exe
PID 2008 wrote to memory of 1220	2008	rundll32.exe	rundll32.exe
PID 2008 wrote to memory of 1220	2008	rundll32.exe	rundll32.exe
PID 2008 wrote to memory of 1220	2008	rundll32.exe	rundll32.exe
PID 2008 wrote to memory of 1220	2008	rundll32.exe	rundll32.exe
PID 2008 wrote to memory of 1220	2008	rundll32.exe	rundll32.exe
PID 2008 wrote to memory of 1220	2008	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\90b95a7e9b8c465732117863638aa9b2086b9a3b1265e94efc9c63e80e1a1406.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2008

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\90b95a7e9b8c465732117863638aa9b2086b9a3b1265e94efc9c63e80e1a1406.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1220

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/1088-8-0x000007FEF6850000-0x000007FEF6ACA000-memory.dmp

Filesize
2.5MB

Download
memory/1220-2-0x0000000000000000-mapping.dmp

Download
memory/1220-3-0x0000000076641000-0x0000000076643000-memory.dmp

Filesize
8KB

Download
memory/1220-4-0x0000000074DF0000-0x0000000074F93000-memory.dmp

Filesize
1.6MB

Download
memory/1220-5-0x0000000075160000-0x0000000075191000-memory.dmp

Filesize
196KB

Download
memory/1220-6-0x00000000000E0000-0x00000000000E6000-memory.dmp

Filesize
24KB

Download
memory/1220-7-0x0000000075160000-0x000000007517F000-memory.dmp

Filesize
124KB

Download

Analysis

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