Malware analysis RuntimeBroker3.exe Malicious activity

Add for printing

File name:	RuntimeBroker3.exe
Full analysis:	https://app.any.run/tasks/864cf8f9-e83a-4b09-af99-5b28223f938f
Verdict:	Malicious activity
Threats:	Quasar is a very popular RAT in the world thanks to its code being available in open-source. This malware can be used to control the victim’s computer remotely. Remote access trojans (RATs) are a type of malware that enables attackers to establish complete to partial control over infected computers. Such malicious programs often have a modular design, offering a wide range of functionalities for conducting illicit activities on compromised systems. Some of the most common features of RATs include access to the users’ data, webcam, and keystrokes. This malware is often distributed through phishing emails and links. Malware Trends Tracker >>>
Analysis date:	June 21, 2025, 23:54:08
OS:	Windows 10 Professional (build: 19044, 64 bit)
Tags:	evasion quasar rat
Indicators:
MIME:	application/vnd.microsoft.portable-executable
File info:	PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows, 3 sections
MD5:	D285698235DEA8AE7E088919FEEDEF11
SHA1:	C584AB38BBE377C84AC5D817B0820C6C84C629CA
SHA256:	C413D08829F1DA9E20E13C2E9BE797CF8447F1041F52C48F12124AD615EA3E8E
SSDEEP:	3072:EtdHLuN/Mn5B5tKPeNWPLhKvbOM9MGNCvVcdSgkMNU6PjhN+2Q821kAnsob3TzmH:Edds9a+6Pji821kYbDRFg1J9jFt80

ANY.RUN is an interactive service which provides full access to the guest system. Information in this report could be distorted by user actions and is provided for user acknowledgement as it is. ANY.RUN does not guarantee maliciousness or safety of the content.

Launch configuration

Task duration:: 60 seconds
Heavy Evasion option:: off
Network geolocation:: off
Additional time used:: none
MITM proxy:: off
Privacy:: Public submission
Fakenet option:: off
Route via Tor:: off
Autoconfirmation of UAC:: on
Network:: on

Software preset

Internet Explorer 11.3636.19041.0
Adobe Acrobat (64-bit) (23.001.20093)
Adobe Flash Player 32 NPAPI (32.0.0.465)
Adobe Flash Player 32 PPAPI (32.0.0.465)
CCleaner (6.20)
FileZilla 3.65.0 (3.65.0)
Google Chrome (133.0.6943.127)
Google Update Helper (1.3.36.51)
Java 8 Update 271 (64-bit) (8.0.2710.9)
Java Auto Updater (2.8.271.9)
Microsoft Edge (133.0.3065.92)
Microsoft Office Professional 2019 - de-de (16.0.16026.20146)
Microsoft Office Professional 2019 - en-us (16.0.16026.20146)
Microsoft Office Professional 2019 - es-es (16.0.16026.20146)
Microsoft Office Professional 2019 - it-it (16.0.16026.20146)
Microsoft Office Professional 2019 - ja-jp (16.0.16026.20146)
Microsoft Office Professional 2019 - ko-kr (16.0.16026.20146)
Microsoft Office Professional 2019 - pt-br (16.0.16026.20146)
Microsoft Office Professional 2019 - tr-tr (16.0.16026.20146)
Microsoft Office Professionnel 2019 - fr-fr (16.0.16026.20146)
Microsoft Office профессиональный 2019 - ru-ru (16.0.16026.20146)
Microsoft OneNote - en-us (16.0.16026.20146)
Microsoft Update Health Tools (3.74.0.0)
Microsoft Visual C++ 2013 Redistributable (x64) - 12.0.30501 (12.0.30501.0)
Microsoft Visual C++ 2013 x64 Additional Runtime - 12.0.21005 (12.0.21005)
Microsoft Visual C++ 2013 x64 Minimum Runtime - 12.0.21005 (12.0.21005)
Microsoft Visual C++ 2015-2022 Redistributable (x64) - 14.36.32532 (14.36.32532.0)
Microsoft Visual C++ 2015-2022 Redistributable (x86) - 14.36.32532 (14.36.32532.0)
Microsoft Visual C++ 2022 X64 Additional Runtime - 14.36.32532 (14.36.32532)
Microsoft Visual C++ 2022 X64 Minimum Runtime - 14.36.32532 (14.36.32532)
Microsoft Visual C++ 2022 X86 Additional Runtime - 14.36.32532 (14.36.32532)
Microsoft Visual C++ 2022 X86 Minimum Runtime - 14.36.32532 (14.36.32532)
Mozilla Firefox (x64 en-US) (136.0)
Mozilla Maintenance Service (136.0)
Notepad++ (64-bit x64) (7.9.1)
Office 16 Click-to-Run Extensibility Component (16.0.15726.20202)
Office 16 Click-to-Run Licensing Component (16.0.16026.20146)
Office 16 Click-to-Run Localization Component (16.0.15726.20202)
Office 16 Click-to-Run Localization Component (16.0.15928.20198)
PowerShell 7-x64 (7.3.5.0)
Update for Windows 10 for x64-based Systems (KB4023057) (2.59.0.0)
Update for Windows 10 for x64-based Systems (KB4023057) (2.63.0.0)
Update for Windows 10 for x64-based Systems (KB4480730) (2.55.0.0)
Update for Windows 10 for x64-based Systems (KB5001716) (8.93.0.0)
VLC media player (3.0.11)
WinRAR 5.91 (64-bit) (5.91.0)
Windows PC Health Check (3.6.2204.08001)

Hotfixes

Client LanguagePack Package
DotNetRollup
DotNetRollup 481
FodMetadata Package
Foundation Package
Hello Face Package
InternetExplorer Optional Package
KB5003791
KB5011048
KB5015684
KB5033052
LanguageFeatures Basic en us Package
LanguageFeatures Handwriting en us Package
LanguageFeatures OCR en us Package
LanguageFeatures Speech en us Package
LanguageFeatures TextToSpeech en us Package
MSPaint FoD Package
MediaPlayer Package
Microsoft OneCore ApplicationModel Sync Desktop FOD Package
Microsoft OneCore DirectX Database FOD Package
NetFx3 OnDemand Package
Notepad FoD Package
OpenSSH Client Package
PowerShell ISE FOD Package
Printing PMCPPC FoD Package
Printing WFS FoD Package
ProfessionalEdition
QuickAssist Package
RollupFix
ServicingStack
ServicingStack 3989
StepsRecorder Package
TabletPCMath Package
UserExperience Desktop Package
WordPad FoD Package

Add for printing

MALICIOUS
- QUASAR mutex has been found
  - RuntimeBroker3.exe (PID: 6852)
SUSPICIOUS
- Checks for external IP
  - svchost.exe (PID: 2200)
  - RuntimeBroker3.exe (PID: 6852)
INFO
- Reads the machine GUID from the registry
  - RuntimeBroker3.exe (PID: 6852)
- Reads the computer name
  - RuntimeBroker3.exe (PID: 6852)
- Checks proxy server information
  - RuntimeBroker3.exe (PID: 6852)
- Checks supported languages
  - RuntimeBroker3.exe (PID: 6852)
- Reads Environment values
  - RuntimeBroker3.exe (PID: 6852)
- Disables trace logs
  - RuntimeBroker3.exe (PID: 6852)
- Reads the software policy settings
  - RuntimeBroker3.exe (PID: 6852)

Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report

Add for printing

No Malware configuration.

Add for printing

TRiD

.exe	\|	Generic CIL Executable (.NET, Mono, etc.) (56.7)
.exe	\|	Win64 Executable (generic) (21.3)
.scr	\|	Windows screen saver (10.1)
.dll	\|	Win32 Dynamic Link Library (generic) (5)
.exe	\|	Win32 Executable (generic) (3.4)

EXIF

EXE

MachineType:	Intel 386 or later, and compatibles
TimeStamp:	2025:03:07 15:10:02+00:00
ImageFileCharacteristics:	Executable, 32-bit
PEType:	PE32
LinkerVersion:	8
CodeSize:	270336
InitializedDataSize:	3072
UninitializedDataSize:	-
EntryPoint:	0x43fde
OSVersion:	4
ImageVersion:	-
SubsystemVersion:	4
Subsystem:	Windows GUI
FileVersionNumber:	1.2.0.0
ProductVersionNumber:	1.2.0.0
FileFlagsMask:	0x003f
FileFlags:	(none)
FileOS:	Win32
ObjectFileType:	Executable application
FileSubtype:	-
LanguageCode:	Neutral
CharacterSet:	Unicode
FileDescription:
FileVersion:	1.2.0.0
InternalName:	Client.exe
LegalCopyright:
OriginalFileName:	Client.exe
ProductVersion:	1.2.0.0
AssemblyVersion:	1.2.0.0

No data.

Add for printing

All screenshots are available in the full report

Add for printing

Total processes

137

Monitored processes

Malicious processes

Suspicious processes

Behavior graph

Click at the process to see the details

Process information

PID

CMD

Path

Indicators

Parent process

2200

C:\WINDOWS\system32\svchost.exe -k NetworkService -p -s Dnscache

C:\Windows\System32\svchost.exe

services.exe

User:

NETWORK SERVICE

Company:

Microsoft Corporation

Integrity Level:

SYSTEM

Description:

Host Process for Windows Services

Version:

10.0.19041.1 (WinBuild.160101.0800)

Modules

Images
c:\windows\system32\svchost.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\bcrypt.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\combase.dll
c:\windows\system32\kernel.appcore.dll

5564

C:\WINDOWS\System32\slui.exe -Embedding

C:\Windows\System32\slui.exe

—

svchost.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Windows Activation Client

Version:

10.0.19041.1 (WinBuild.160101.0800)

Modules

Images
c:\windows\system32\slui.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\bcrypt.dll
c:\windows\system32\user32.dll

6852

"C:\Users\admin\Desktop\RuntimeBroker3.exe"

C:\Users\admin\Desktop\RuntimeBroker3.exe

explorer.exe

User:

admin

Integrity Level:

MEDIUM

Description:

Exit code:

Version:

1.2.0.0

Modules

Images
c:\users\admin\desktop\runtimebroker3.exe
c:\windows\system32\ntdll.dll
c:\windows\syswow64\ntdll.dll
c:\windows\system32\wow64.dll
c:\windows\system32\wow64win.dll
c:\windows\system32\wow64cpu.dll
c:\windows\syswow64\mscoree.dll
c:\windows\syswow64\kernel32.dll
c:\windows\syswow64\kernelbase.dll
c:\windows\syswow64\apphelp.dll

Add for printing

Total events

1 691

Read events

1 676

Write events

Delete events

Modification events


(PID) Process:	(6852) RuntimeBroker3.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing
Operation:	write	Name:	EnableConsoleTracing
Value: 0
(PID) Process:	(6852) RuntimeBroker3.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\RuntimeBroker3_RASAPI32
Operation:	write	Name:	EnableFileTracing
Value: 0
(PID) Process:	(6852) RuntimeBroker3.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\RuntimeBroker3_RASAPI32
Operation:	write	Name:	EnableAutoFileTracing
Value: 0
(PID) Process:	(6852) RuntimeBroker3.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\RuntimeBroker3_RASAPI32
Operation:	write	Name:	EnableConsoleTracing
Value: 0
(PID) Process:	(6852) RuntimeBroker3.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\RuntimeBroker3_RASAPI32
Operation:	write	Name:	FileTracingMask
Value:
(PID) Process:	(6852) RuntimeBroker3.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\RuntimeBroker3_RASAPI32
Operation:	write	Name:	ConsoleTracingMask
Value:
(PID) Process:	(6852) RuntimeBroker3.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\RuntimeBroker3_RASAPI32
Operation:	write	Name:	MaxFileSize
Value: 1048576
(PID) Process:	(6852) RuntimeBroker3.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\RuntimeBroker3_RASAPI32
Operation:	write	Name:	FileDirectory
Value: %windir%\tracing
(PID) Process:	(6852) RuntimeBroker3.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\RuntimeBroker3_RASMANCS
Operation:	write	Name:	EnableFileTracing
Value: 0
(PID) Process:	(6852) RuntimeBroker3.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\RuntimeBroker3_RASMANCS
Operation:	write	Name:	EnableAutoFileTracing
Value: 0

Add for printing

Executable files

Suspicious files

Text files

Unknown types

Dropped files

No data

Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Add for printing

HTTP(S) requests

TCP/UDP connections

DNS requests

Threats

HTTP requests

PID	Process	Method	HTTP Code	IP	URL	CN	Type	Size	Reputation
6852	RuntimeBroker3.exe	GET	200	15.197.148.33:80	http://freegeoip.net/xml/	unknown	—	—	shared
1268	svchost.exe	GET	200	95.101.149.131:80	http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl	unknown	—	—	whitelisted
6852	RuntimeBroker3.exe	GET	301	88.198.193.213:80	http://telize.com/geoip	unknown	—	—	malicious
5012	svchost.exe	GET	200	2.23.77.188:80	http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D	unknown	—	—	whitelisted
1268	svchost.exe	GET	200	23.55.104.172:80	http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl	unknown	—	—	whitelisted
6852	RuntimeBroker3.exe	GET	200	104.26.12.205:80	http://api.ipify.org/	unknown	—	—	malicious
3720	SIHClient.exe	GET	200	95.101.149.131:80	http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.crl	unknown	—	—	whitelisted
3720	SIHClient.exe	GET	200	95.101.149.131:80	http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.crl	unknown	—	—	whitelisted

Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID	Process	IP	Domain	ASN	CN	Reputation
4	System	192.168.100.255:137	—	—	—	whitelisted
5944	MoUsoCoreWorker.exe	51.104.136.2:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	IE	whitelisted
1268	svchost.exe	51.104.136.2:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	IE	whitelisted
5896	RUXIMICS.exe	51.104.136.2:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	IE	whitelisted
6852	RuntimeBroker3.exe	88.198.193.213:80	telize.com	Hetzner Online GmbH	DE	malicious
6852	RuntimeBroker3.exe	88.198.193.213:443	telize.com	Hetzner Online GmbH	DE	malicious
6852	RuntimeBroker3.exe	15.197.148.33:80	freegeoip.net	AMAZON-02	US	shared
6852	RuntimeBroker3.exe	104.26.12.205:80	api.ipify.org	CLOUDFLARENET	US	shared
4	System	192.168.100.255:138	—	—	—	whitelisted
2336	svchost.exe	172.211.123.248:443	client.wns.windows.com	MICROSOFT-CORP-MSN-AS-BLOCK	FR	whitelisted

DNS requests

Domain	IP	Reputation
settings-win.data.microsoft.com	51.104.136.2 40.127.240.158	whitelisted
google.com	216.58.206.78	whitelisted
telize.com	88.198.193.213	malicious
www.telize.com	88.198.193.213	malicious
freegeoip.net	15.197.148.33 3.33.130.190	shared
api.ipify.org	104.26.12.205 104.26.13.205 172.67.74.152	shared
client.wns.windows.com	172.211.123.248	whitelisted
login.live.com	40.126.32.140 20.190.160.67 40.126.32.68 20.190.160.64 20.190.160.3 20.190.160.14 40.126.32.72 20.190.160.130	whitelisted
ocsp.digicert.com	2.23.77.188	whitelisted
crl.microsoft.com	23.55.104.172 23.55.104.190	whitelisted

Threats

PID	Process	Class	Message
2200	svchost.exe	Device Retrieving External IP Address Detected	ET INFO External IP Lookup Domain (freegeiop .net in DNS lookup)
2200	svchost.exe	Misc activity	ET INFO External IP Lookup Domain (ipify .org) in DNS Lookup
6852	RuntimeBroker3.exe	Device Retrieving External IP Address Detected	ET INFO External IP Lookup api.ipify.org
6852	RuntimeBroker3.exe	Device Retrieving External IP Address Detected	POLICY [ANY.RUN] External IP Lookup by HTTP (api .ipify .org)
6852	RuntimeBroker3.exe	Device Retrieving External IP Address Detected	SUSPICIOUS [ANY.RUN] An IP address was received from the server as a result of an HTTP request

Add for printing

No debug info

General Info

RuntimeBroker3.exe

D285698235DEA8AE7E088919FEEDEF11

C584AB38BBE377C84AC5D817B0820C6C84C629CA

C413D08829F1DA9E20E13C2E9BE797CF8447F1041F52C48F12124AD615EA3E8E

3072:EtdHLuN/Mn5B5tKPeNWPLhKvbOM9MGNCvVcdSgkMNU6PjhN+2Q821kAnsob3TzmH:Edds9a+6Pji821kYbDRFg1J9jFt80

Software environment set and analysis options

Launch configuration

Software preset

Hotfixes

Behavior activities

MALICIOUS

QUASAR mutex has been found

SUSPICIOUS

Checks for external IP

INFO

Reads the machine GUID from the registry

Reads the computer name

Checks proxy server information

Checks supported languages

Reads Environment values

Disables trace logs

Reads the software policy settings

Malware configuration

Static information

TRiD

EXIF

EXE

Video and screenshots

Processes

Behavior graph

Specs description

Process information

Information

Modules

Information

Modules

Information

Modules

Registry activity

Modification events

Files activity

Dropped files

Network activity

HTTP requests

Connections

DNS requests

Threats

Debug output strings