ef72a55b7aab42194ba390839733641eb9816220cabd8e676966f21040dc4817

Analysis

max time kernel
149s
max time network
151s
platform
windows11-21h2_x64
resource
win11-20260513-en
resource tags

arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
28/05/2026, 00:58

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General

Target
ef72a55b7aab42194ba390839733641eb9816220cabd8e676966f21040dc4817.dll
Size 90KB
Sample260528-bbpl2aet9v
SHA256 ef72a55b7aab42194ba390839733641eb9816220cabd8e676966f21040dc4817
MD5 20c7f7b4a9371e922361287b32dac241
SHA1 35ffc932ca452b43075d07e917406040a75dbf33
SHA512 280b6188d9405d3466de994246fc13cd0ff9839b2cc15fcc4508fc673c806c565f55d5f5fedf4aa137332f0ddcbc53f7121d677ead2947d92b9da93a0a57be0b
SSDEEP 768:oiEyU2joCXwPaPOZxZ6pRb0x5CkOVZYklnq:kyUuAC6xopRbICXYt
TLSH
T11393C4265D0380A3E1512871A6D91BFA1EFD4D2339D3317FDFE0CC642DE2924A694AB7
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
784	572	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 2984 wrote to memory of 572	2984	rundll32.exe	80

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ef72a55b7aab42194ba390839733641eb9816220cabd8e676966f21040dc4817.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2984
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\ef72a55b7aab42194ba390839733641eb9816220cabd8e676966f21040dc4817.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:572
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 572 -s 448
    3⤵
    - Program crash
    PID:784

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 572 -ip 572
1⤵
PID:908

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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