ae2001d5b60a2f0bd8e72c0106363950cd9f68e9ce42b9a40b0af26814908809

Analysis

max time kernel
140s
max time network
143s
platform
windows11-21h2_x64
resource
win11-20240802-en
resource tags

arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
submitted
10-08-2024 07:59

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General

Target

$PLUGINSDIR/nsDui.dll
Size

10.0MB
MD5

368841af8b0074e348418f106716e603
SHA1

75469510665b651b38e3b4fb7c4240722c756126
SHA256

3be54dea5aedc0d8d16d6c4bd4e046e2d93bfc550a1a035a94768c2d5901e327
SHA512

3804afa3930a90f258a2b4e7106e1d0211e5d4ca6a7f5ba23da11e3908b4e202295ddbcb1ecf1e15215bc9a0aece1a46efad07ad94feddd4f316b0de674c50d5
SSDEEP

196608:H1YWSpeHkab9WLMhJuH9E7QfqV9BgtBx2Tr+Z/iYyEuOyWoqeob8VvW:eWBfbQcJudLqV9ByBxP/1o0b

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1644 4412 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

pid	pid_target	process	target process
1644	4412	WerFault.exe	rundll32.exe

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

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 4564 wrote to memory of 4412	4564	rundll32.exe	rundll32.exe
PID 4564 wrote to memory of 4412	4564	rundll32.exe	rundll32.exe
PID 4564 wrote to memory of 4412	4564	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsDui.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4564

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsDui.dll,#1
2⤵
- System Location Discovery: System Language Discovery
PID:4412

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4412 -s 592
3⤵
- Program crash
PID:1644

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4412 -ip 4412
1⤵
PID:1352

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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