d0eedaa4bf4a3e54164658aebcd4eb9d7b18614603afb193541229af575641eb

Analysis

max time kernel
149s
max time network
93s
platform
windows11-21h2_x64
resource
win11-20260130-en
resource tags

arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
21/04/2026, 07:35

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General

Target
$PLUGINSDIR/System.dll
Size 23KB
Sample260421-jesf4ady5x
SHA256 d0eedaa4bf4a3e54164658aebcd4eb9d7b18614603afb193541229af575641eb
MD5 d587e4cc950feb8620d0b4e241cfa10b
SHA1 e16baad5f75aaabb8c409e16cbc9ee1f094a40ad
SHA512 89240f3c7527ddd20538ad974cf2caaaa67f8eaae54c77021c86e7aa7387921637624e8ed6299f97f22d4e7424f5b4f623444ae9519dc3175a210461365c4b75
SSDEEP 384:y8PJlt70esj0Mt9vn6ay6vHQIYia8JjA9y8RbmL4nNyiXg:y+qesjRL665Yi/JM5ALUg
TLSH
T186B28E5386504CB1E9125C3474D0BE36AF75B99C2BD0C0D363DAC0956F503C73ABE296
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2200	4272	WerFault.exe	80

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 4924 wrote to memory of 4272	4924	rundll32.exe	80

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4924
- 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:4272
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4272 -s 460
    3⤵
    - Program crash
    PID:2200

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4272 -ip 4272
1⤵
PID:4012

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/4272-0-0x0000000002BB0000-0x0000000002CFD000-memory.dmp

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