4a82beed7831f94311a150d5f9db84dda47f0c44256b37339159df3e60d48470

Analysis

max time kernel
149s
max time network
157s
platform
windows11-21h2_x64
resource
win11-20260513-en
resource tags

arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
25/05/2026, 12:17

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General

Target
$R0.dll
Size 82KB
Sample260525-pf2daaax91
SHA256 4a82beed7831f94311a150d5f9db84dda47f0c44256b37339159df3e60d48470
MD5 ad996e90f5a345370499392af57c5007
SHA1 cd0f35e475fb5e598d3270bb2bc8737ee661d431
SHA512 072112cc52414fd338a8d516e97c2b2c6832d774c5c38d85207a6e6710eb5cb89a12d747c1a4cbe901c8d53013490f9f02bb7e0bc916c6f08f926d7c85668188
SSDEEP 1536:mI/K1PnRRjZ8LDJ9gUdtF9nnCo7vGyD5TFN9NXrn9+EtN/IrQ:p8/jZ+J9lH7vGyD5TFN9NXL9Jt5Is
TLSH
T14A839E20B660D033C99B653860A4C712AE7C7D616BE9C487BF6A47781F503C2B77E366
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3516	5932	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 2596 wrote to memory of 5932	2596	rundll32.exe	80

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$R0.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2596
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$R0.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5932
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 5932 -s 472
    3⤵
    - Program crash
    PID:3516

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 5932 -ip 5932
1⤵
PID:2344

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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