b89448b9fd7be5ef215cac6d973a57c0e75e1fffa25552afe174855c9b71fdf9

Analysis

max time kernel
38s
max time network
41s
platform
windows10-2004_x64
resource
win10v2004-20260911-en
resource tags

arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
03/10/2026, 12:45

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General

Target
$PLUGINSDIR/System.dll
Size 28KB
Sample261003-py5teszyat
SHA256 b89448b9fd7be5ef215cac6d973a57c0e75e1fffa25552afe174855c9b71fdf9
MD5 81e34f1c4b04a15dbce200c52f598f67
SHA1 f40a922ad7a5494e2aeeaa2b961d96738e888af7
SHA512 577f52a292075269f0e8ec4c6d243b2ed411872e009839553020929a8263174ad97943f150543e4ea6cb327d95e227f4065441a9d2106b7cabf1cb872dbcc181
SSDEEP 384:xmEs6sVqQq0DwRiGUaLYuAXLaMoy4m973uwYkvZ6YfkzB8yy1Eiu8ILvFd/9:xmEwqZ2wRiGUcY8TBsdvEbB8yyvIJ
TLSH
T1DFD20A2AFF06C8F2D1B1D570889EE677C526782957220E7BFF1B9E4CFC236825A19105
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1144	4300	WerFault.exe	87

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 944 wrote to memory of 4300	944	rundll32.exe	87

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:944
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4300
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4300 -s 616
    3⤵
    - Program crash
    PID:1144

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4300 -ip 4300
1⤵
PID:1240

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/4300-0-0x00000000755E0000-0x00000000755EF000-memory.dmp

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