dridex | 4cfe3f30d028e7cb1eea0ee761b75ed998cd0c6d6ff4f9a802db428d0b9dda39

General

Target

oKQroZBngWiyjWkkklgbtq.dll
Size

512KB
MD5

3bcd371a9fb45f9f37c70592cb7d3bc7
SHA1

11351ba88dd922e810253246754b85500cb56352
SHA256

4cfe3f30d028e7cb1eea0ee761b75ed998cd0c6d6ff4f9a802db428d0b9dda39
SHA512

7254cf512df7c3e7094525cbe951ec0c9f827966229ee66b418b3edc881c75d446d1adc15e3b6a828b03b19141be1527b7762ccc90c474fe2f7584cc3d622127

Score

10^/10

dridex 22203 botnet loader

Malware Config

Extracted

Family

dridex

Botnet

22203

C2

51.159.52.196:443

134.209.247.135:6602

194.233.68.48:5228

89.31.56.58:593

rc4.plain

Signatures

Dridex
Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.
botnet dridex

Dridex Loader 1 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

Processes:

resource	yara_rule
behavioral2/memory/4648-131-0x0000000074FC0000-0x0000000075041000-memory.dmp	dridex_ldr

Drops file in System32 directory 2 IoCs

Processes:

svchost.exe

description	ioc	process
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{DD71E034-4F9E-4475-9754-774A3B560EC6}.catalogItem	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{6D689E68-6347-4A53-8243-D1C68A008D1E}.catalogItem	svchost.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4136 4648 WerFault.exe rundll32.exe

pid	pid_target	process	target process
4136	4648	WerFault.exe	rundll32.exe

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

svchost.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	svchost.exe
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	svchost.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

svchost.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	svchost.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 4640 wrote to memory of 4648	4640	rundll32.exe	rundll32.exe
PID 4640 wrote to memory of 4648	4640	rundll32.exe	rundll32.exe
PID 4640 wrote to memory of 4648	4640	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\oKQroZBngWiyjWkkklgbtq.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4640

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\oKQroZBngWiyjWkkklgbtq.dll,#1
2⤵
PID:4648

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4648 -s 652
3⤵
- Program crash
PID:4136

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4648 -ip 4648
1⤵
PID:2344

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netsvcs -p
1⤵
- Drops file in System32 directory
- Checks processor information in registry
- Enumerates system info in registry
PID:1172

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/4648-130-0x0000000000000000-mapping.dmp

Download
memory/4648-131-0x0000000074FC0000-0x0000000075041000-memory.dmp

Filesize
516KB

Download
memory/4648-133-0x0000000000D80000-0x0000000000D86000-memory.dmp

Filesize
24KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads