4b2dc152f33cd7d88beba8696a57cd0383f05c50d2fb63672664717766762a1d

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
04/07/2026, 12:24

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General

Target
api-ms-win-core-file-l1-1-0.dll
Size 14KB
Sample260704-plefpsfs9v
SHA256 4b2dc152f33cd7d88beba8696a57cd0383f05c50d2fb63672664717766762a1d
MD5 d613baa29afa3db1faa991876dd382f1
SHA1 795ad1269848846294563480750c91abf6bf33af
SHA512 a7113a430d39a71af764ddddda81f37f280f795ae88f5ab829523b278f82c1487401316c24700be4451a162567c282bcf08390a583ccd18b1baf96cd86ab54b3
SSDEEP 192:zYPvVX8rFTsBWOhWwT71ojDBQABJ9t6qnaj9RlSIFspC:EPvVXbWOhW1DBRJ9t6lBRAIFsI
TLSH
T17E621A83D9A0F64BFC8F9E701196D84368394386043454C61BD9E79E7CE738BE788A9C
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1376	4988	WerFault.exe	85

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 3412 wrote to memory of 4988	3412	rundll32.exe	85

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\api-ms-win-core-file-l1-1-0.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3412
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\api-ms-win-core-file-l1-1-0.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4988
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4988 -s 600
    3⤵
    - Program crash
    PID:1376

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4988 -ip 4988
1⤵
PID:3852

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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