9f83690b4ba738a40f8993645d5d02d3fda46041bf93a97cbde487fe09e3bb86

Analysis

max time kernel
11s
max time network
72s
platform
windows10-1703_x64
resource
win10-20240404-en
resource tags

arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
submitted
31-07-2024 13:28

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General

Target

Nucleus.Hook32.dll
Size

204KB
MD5

60cf4a67d7b291f96deb0c25abc45136
SHA1

a7cd4d1bc767dcc365e311d9a0b2012ba40f83df
SHA256

4b8fc9cd0679a3a61bd8adca793e23d2caa60fa0663091afd9846f32f247e622
SHA512

b87742ae95e77ba0fad844f4c868e3031d834ccad00e9e555103c71bf0a4de707d0a121958aa088ae547020adef9f1b99dfd4dedabf43c07d5ab6f16f4dfbf86
SSDEEP

3072:U/2dVVPsB3Q9/xokMRuCfn94nPFYRiXGJmZB5tBnnqOqrkZAg0Fuj0JYBK4:UubV1FxoL1nGPFY4XiE5tBHAO7K4

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4588 3004 WerFault.exe rundll32.exe
System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
discovery

System Language Discovery
T1614.001

Processes:

rundll32.exe

description ioc process

Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

rundll32.exe

pid process

3004 rundll32.exe

pid	pid_target	process	target process
4588	3004	WerFault.exe	rundll32.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

pid	process
3004	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 1068 wrote to memory of 3004	1068	rundll32.exe	rundll32.exe
PID 1068 wrote to memory of 3004	1068	rundll32.exe	rundll32.exe
PID 1068 wrote to memory of 3004	1068	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\Nucleus.Hook32.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1068

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\Nucleus.Hook32.dll,#1
2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:3004

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3004 -s 660
3⤵
- Program crash
PID:4588

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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