dridex | ace691c336e0c9a311681ccd4768d52feacc30e13e667ee577a590bff837caa9

General

Target

era5ne6.dll
Size

373KB
MD5

c379b0ae73d8763711c50f57607979fe
SHA1

2affa7b64aa34b84172bbdcd8c5a09f340e6a328
SHA256

ace691c336e0c9a311681ccd4768d52feacc30e13e667ee577a590bff837caa9
SHA512

6790ecd81dd943fdde0f9c03348a8c8f3d0f1a936c89ad3863def66848dc4de58af71d66e6da4a0d54d394d1182897e1c9eb66d64f159886adec3e1d34476e2b

Score

10^/10

dridex 10444 botnet discovery evasion trojan

Malware Config

Extracted

Family

dridex

Botnet

10444

C2

210.65.244.179:443

37.247.35.130:6601

103.18.108.116:6601

rc4.plain

Signatures

Dridex
Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.
botnet dridex
Blocklisted process makes network request 4 IoCs

Processes:

rundll32.exe

flow pid process

23 5088 rundll32.exe
25 5088 rundll32.exe
27 5088 rundll32.exe
33 5088 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
23	5088	rundll32.exe
25	5088	rundll32.exe
27	5088	rundll32.exe
33	5088	rundll32.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	rundll32.exe

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

Processes:

rundll32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\SystemCertificates\CA\Certificates\33E4E80807204C2B6182A3A14B591ACD25B5F0DB	rundll32.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\SystemCertificates\CA\Certificates\33E4E80807204C2B6182A3A14B591ACD25B5F0DB\Blob = 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	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 4320 wrote to memory of 5088	4320	rundll32.exe	rundll32.exe
PID 4320 wrote to memory of 5088	4320	rundll32.exe	rundll32.exe
PID 4320 wrote to memory of 5088	4320	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\era5ne6.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4320

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\era5ne6.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
- Modifies system certificate store
PID:5088

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Install Root Certificate

1

T1130

Modify Registry

1

T1112

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/5088-130-0x0000000000000000-mapping.dmp

Download
memory/5088-132-0x0000000074AC0000-0x0000000074B7C000-memory.dmp

Filesize
752KB

Download
memory/5088-131-0x0000000074AC0000-0x0000000074AFD000-memory.dmp

Filesize
244KB

Download
memory/5088-134-0x0000000074AC0000-0x0000000074B7C000-memory.dmp

Filesize
752KB

Download

Analysis

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