21f7f398bff8669321cb19020bcb6f64e7229695ff5f7f61ab684ab2dcbeba08

Analysis

max time kernel
149s
max time network
151s
platform
windows10-ltsc_2021_x64
resource
win10ltsc2021-20260513-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20260513-enlocale:en-usos:windows10-ltsc_2021-x64systemwindows
submitted
04/07/2026, 04:07

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General

Target
component_1.exe
Size 36KB
Sample260704-eplzvaez8j
SHA256 21f7f398bff8669321cb19020bcb6f64e7229695ff5f7f61ab684ab2dcbeba08
MD5 41d5a8b371c3ab12a6317c52e70aa1d9
SHA1 54801da27ec7f9f5f9bf069d0c976dcb35f1f75d
SHA512 b35a0e70f59f7037959558e3e4e8df9ed0dd557d2baba3fc283212da4246f865ad988cb907258e9ac6a4022dbc328b958d597099068ccb8f0d7e5dec88a31d3e
SSDEEP 768:aMttvjOzE1fVK8a/aJb2l1Xa7NC/M3zL+33sWGS6G6Du:aMjOzgfAatA1M3/+33RGDu
TLSH
T11CF2E64BB6C370FDC617C630D6A71FB2B534B8901622AEBFA7D4C63219137911626F29
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

execution persistence

Malware Config

Signatures

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\RuntimeBroker.exe	component_1.exe

Executes dropped EXE 3 IoCs

pid	Process
3968	RuntimeBroker.exe
4972	RuntimeBroker.exe
5276	HealthService.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-101591186-421676486-4137282292-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\RuntimeBroker = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\RuntimeBroker\\RuntimeBroker.exe"	component_1.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-101591186-421676486-4137282292-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SecurityHealth = "C:\\Users\\Admin\\AppData\\Local\\Microsoft\\Windows\\Security\\Health\\HealthService.exe"	component_1.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
5884	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
3968	RuntimeBroker.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3968	RuntimeBroker.exe
3968	RuntimeBroker.exe
3968	RuntimeBroker.exe
3968	RuntimeBroker.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 5372 wrote to memory of 5884	5372	component_1.exe	83
PID 5372 wrote to memory of 3968	5372	component_1.exe	85
PID 3968 wrote to memory of 2488	3968	RuntimeBroker.exe	98
PID 3968 wrote to memory of 3408	3968	RuntimeBroker.exe	100
PID 3968 wrote to memory of 632	3968	RuntimeBroker.exe	102
PID 3968 wrote to memory of 5112	3968	RuntimeBroker.exe	104

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\component_1.exe
"C:\Users\Admin\AppData\Local\Temp\component_1.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:5372
- C:\Windows\SYSTEM32\schtasks.exe
  schtasks /create /tn "MicrosoftRuntimeBroker" /tr "C:\Users\Admin\AppData\Local\Microsoft\Windows\Security\Health\HealthService.exe" /sc daily /st 00:00 /rl limited /f
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:5884
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\RuntimeBroker\RuntimeBroker.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\RuntimeBroker\RuntimeBroker.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:3968
- - C:\Windows\SYSTEM32\schtasks.exe
    schtasks /query /tn "MicrosoftRuntimeBroker"
    3⤵
    PID:2488
- - C:\Windows\SYSTEM32\schtasks.exe
    schtasks /query /tn "MicrosoftRuntimeBroker"
    3⤵
    PID:3408
- - C:\Windows\SYSTEM32\schtasks.exe
    schtasks /query /tn "MicrosoftRuntimeBroker"
    3⤵
    PID:632
- - C:\Windows\SYSTEM32\schtasks.exe
    schtasks /query /tn "MicrosoftRuntimeBroker"
    3⤵
    PID:5112

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\RuntimeBroker\RuntimeBroker.exe
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\RuntimeBroker\RuntimeBroker.exe
1⤵
- Executes dropped EXE
PID:4972

C:\Users\Admin\AppData\Local\Microsoft\Windows\Security\Health\HealthService.exe
C:\Users\Admin\AppData\Local\Microsoft\Windows\Security\Health\HealthService.exe
1⤵
- Executes dropped EXE
PID:5276

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

RuntimeBroker.exe

Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\RuntimeBroker\RuntimeBroker.exe
Size 36KB
SHA256 21f7f398bff8669321cb19020bcb6f64e7229695ff5f7f61ab684ab2dcbeba08
MD5 41d5a8b371c3ab12a6317c52e70aa1d9
SHA1 54801da27ec7f9f5f9bf069d0c976dcb35f1f75d
SHA512 b35a0e70f59f7037959558e3e4e8df9ed0dd557d2baba3fc283212da4246f865ad988cb907258e9ac6a4022dbc328b958d597099068ccb8f0d7e5dec88a31d3e
SSDEEP 768:aMttvjOzE1fVK8a/aJb2l1Xa7NC/M3zL+33sWGS6G6Du:aMjOzgfAatA1M3/+33RGDu
TLSH
T11CF2E64BB6C370FDC617C630D6A71FB2B534B8901622AEBFA7D4C63219137911626F29
MD5 SHA1 SHA512 SSDEEP TLSH

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