b5f815d0a41add7fd9593036a8e6843fcc221298fefd61808f960eed3cc19830

Analysis

max time kernel
149s
max time network
153s
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-processthreads-l1-1-1.dll
Size 11KB
Sample260704-plefpsfs9v
SHA256 b5f815d0a41add7fd9593036a8e6843fcc221298fefd61808f960eed3cc19830
MD5 7016bf365a155d29f01a000942a017ef
SHA1 47e25b97af56edbdd20ca72bba994c6bcf1b81e6
SHA512 2cd7e88717a2d81811ce03990737888b8a1e9e351dcdad401ffe5924bdf97be086bd766a1a5b25411b760cbf81b68bebd94d915100b6bc1310360813af11f827
SSDEEP 192:79DfIeNWOhWVT71ojDBQABJUqdqnajLQvTP+8jIrnN:79DfIeNWOhWuDBRJhdlvQyUIrN
TLSH
T12C422CC186BC5483E9976E705298F6433D3EA7C61834446505ABF7AD2DD73C6EB00B2D
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

discovery

Malware Config

Signatures

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 4480 wrote to memory of 5012	4480	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\api-ms-win-core-processthreads-l1-1-1.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4480
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\api-ms-win-core-processthreads-l1-1-1.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5012

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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