aa3c568c88329c4dd471492c0db25a6c299b4346562d63e850e3064902d86d69

Analysis

max time kernel
243s
max time network
290s
platform
windows11-21h2_x64
resource
win11-20240802-en
resource tags

arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
submitted
03-08-2024 05:39

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General

Target

$PLUGINSDIR/nsExec.dll
Size

7KB
MD5

b4579bc396ace8cafd9e825ff63fe244
SHA1

32a87ed28a510e3b3c06a451d1f3d0ba9faf8d9c
SHA256

01e72332362345c415a7edcb366d6a1b52be9ac6e946fb9da49785c140ba1a4b
SHA512

3a76e0e259a0ca12275fed922ce6e01bdfd9e33ba85973e80101b8025ef9243f5e32461a113bbcc6aa75e40894bb5d3a42d6b21045517b6b3cf12d76b4cfa36a
SSDEEP

96:JwzdzBzMDhOZZDbXf5GsWvSv1ckne94SDbYkvML1HT1fUNQaSGYuH0DQ:JTQHDb2vSuOc41ZfUNQZGdHM

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4032 1396 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
4032	1396	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 1084 wrote to memory of 1396	1084	rundll32.exe	rundll32.exe
PID 1084 wrote to memory of 1396	1084	rundll32.exe	rundll32.exe
PID 1084 wrote to memory of 1396	1084	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsExec.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1084

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsExec.dll,#1
2⤵
- System Location Discovery: System Language Discovery
PID:1396

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1396 -s 468
3⤵
- Program crash
PID:4032

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1396 -ip 1396
1⤵
PID:3432

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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