9768fd324a5bbab21ae793ddacf398e2593578e1a8e46894e8fefba3b676e62b

Analysis

max time kernel
149s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
01/08/2026, 12:23

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General

Target
ulklfemon.dll
Size 2.0MB
Sample260801-pkrdwaveka
SHA256 9768fd324a5bbab21ae793ddacf398e2593578e1a8e46894e8fefba3b676e62b
MD5 bfff87d4246b9a68e04e7d3779b9544b
SHA1 49b717eb2a177c899748848b48534733356d70ee
SHA512 aaf139b631c36f315f1f79776b0a8783c7ce9c966c8b7f9494836b93548fdf473ed9ad4914ff33e860459efafebe74f9a8f483569688e150084b199200ab3a58
SSDEEP 49152:OpjOA3kxS8YwOvVL1LNP6j85Gr18Mrxq:OdOA3N8YTV1LNP6j8Mp8M
TLSH
T184A58D22BEE0857BC16F03314D1EF23C31FDA5230B7981CB67D85B2869306A2665976F
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3412	2336	WerFault.exe	85

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

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

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 4876 wrote to memory of 2336	4876	rundll32.exe	85

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ulklfemon.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4876
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\ulklfemon.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2336
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2336 -s 652
    3⤵
    - Program crash
    PID:3412

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2336 -ip 2336
1⤵
PID:3712

Network

MITRE ATT&CK Enterprise v16

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 v16

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