39fefafc4ede6838061b804a44b0416ed4929c3c3ff9e64b1e0956186734094f

Analysis

max time kernel
149s
max time network
139s
platform
windows10-2004_x64
resource
win10v2004-20260911-en
resource tags

arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
02/10/2026, 10:34

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General

Target
$PLUGINSDIR/CustomnsWeb.dll
Size 42KB
Sample261002-ml89zagd43
SHA256 39fefafc4ede6838061b804a44b0416ed4929c3c3ff9e64b1e0956186734094f
MD5 f705fa42cb1edf73153cfe6bef657387
SHA1 24462c7b144ecb7778ca7a93b9e1dd62464ea81a
SHA512 d993d37b53b60a009021154e5032965c29789fbb8d7b0907dc0877f36abe5d7456a33a8e3111158ee82fd306d24d3aeabe81be776ca5d2f09b8413ff437aa936
SSDEEP 384:Rl9jSW3OJO9zbkU3UjVzU2QSvA5q/8Bigip:RHjxOJO95mVzjQCAU/S
TLSH
T10913D99CAC06862AF8B2417E46B8D527726EDD14B314BEF7205C1D126DAF1F329B1CD2
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3196	808	WerFault.exe	86

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 3936 wrote to memory of 808	3936	rundll32.exe	86

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\CustomnsWeb.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3936
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\CustomnsWeb.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:808
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 808 -s 664
    3⤵
    - Program crash
    PID:3196

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 808 -ip 808
1⤵
PID:4712

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

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Downloads

memory/808-0-0x0000000010000000-0x000000001001E000-memory.dmp

Download

memory/808-1-0x0000000010000000-0x000000001001E000-memory.dmp