File name:

RuntimeBroker1.exe

Full analysis: https://app.any.run/tasks/a6dca36e-63f3-4a48-9634-cc3a30089779
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.

Analysis date: June 21, 2025, 23:44:42
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.
  • MALICIOUS

    • QUASAR mutex has been found

      • RuntimeBroker1.exe (PID: 2076)
      • RuntimeBroker1.exe (PID: 2648)
      • RuntimeBroker.exe (PID: 3396)
    • Changes the autorun value in the registry

      • RuntimeBroker1.exe (PID: 2648)
      • RuntimeBroker.exe (PID: 3396)
    • QUASAR has been detected (YARA)

      • RuntimeBroker.exe (PID: 3396)
  • SUSPICIOUS

    • Checks for external IP

      • svchost.exe (PID: 2200)
      • RuntimeBroker1.exe (PID: 2076)
      • RuntimeBroker1.exe (PID: 2648)
      • RuntimeBroker.exe (PID: 3396)
    • Executable content was dropped or overwritten

      • RuntimeBroker1.exe (PID: 2648)
    • Starts itself from another location

      • RuntimeBroker1.exe (PID: 2648)
    • There is functionality for taking screenshot (YARA)

      • RuntimeBroker.exe (PID: 3396)
    • Connects to unusual port

      • RuntimeBroker.exe (PID: 3396)
  • INFO

    • Reads the computer name

      • RuntimeBroker1.exe (PID: 2076)
      • RuntimeBroker1.exe (PID: 2648)
      • RuntimeBroker.exe (PID: 3396)
    • Disables trace logs

      • RuntimeBroker1.exe (PID: 2076)
      • RuntimeBroker1.exe (PID: 2648)
      • RuntimeBroker.exe (PID: 3396)
    • Reads the machine GUID from the registry

      • RuntimeBroker1.exe (PID: 2076)
      • RuntimeBroker1.exe (PID: 2648)
      • RuntimeBroker.exe (PID: 3396)
    • Checks supported languages

      • RuntimeBroker1.exe (PID: 2076)
      • RuntimeBroker1.exe (PID: 2648)
      • RuntimeBroker.exe (PID: 3396)
    • Checks proxy server information

      • RuntimeBroker1.exe (PID: 2076)
      • RuntimeBroker1.exe (PID: 2648)
      • RuntimeBroker.exe (PID: 3396)
      • slui.exe (PID: 6180)
    • Reads the software policy settings

      • RuntimeBroker1.exe (PID: 2076)
      • RuntimeBroker1.exe (PID: 2648)
      • RuntimeBroker.exe (PID: 3396)
      • slui.exe (PID: 6180)
    • Manual execution by a user

      • RuntimeBroker1.exe (PID: 2648)
    • Creates files in the program directory

      • RuntimeBroker1.exe (PID: 2648)
    • Launching a file from a Registry key

      • RuntimeBroker1.exe (PID: 2648)
      • RuntimeBroker.exe (PID: 3396)
    • Creates files or folders in the user directory

      • RuntimeBroker.exe (PID: 3396)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

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.
screenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
142
Monitored processes
5
Malicious processes
3
Suspicious processes
0

Behavior graph

Click at the process to see the details
start #QUASAR runtimebroker1.exe svchost.exe #QUASAR runtimebroker1.exe #QUASAR runtimebroker.exe slui.exe

Process information

PID
CMD
Path
Indicators
Parent process
2076"C:\Users\admin\Desktop\RuntimeBroker1.exe" C:\Users\admin\Desktop\RuntimeBroker1.exe
explorer.exe
User:
admin
Integrity Level:
MEDIUM
Description:
Exit code:
0
Version:
1.2.0.0
Modules
Images
c:\users\admin\desktop\runtimebroker1.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
2200C:\WINDOWS\system32\svchost.exe -k NetworkService -p -s DnscacheC:\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
2648"C:\Users\admin\Desktop\RuntimeBroker1.exe" C:\Users\admin\Desktop\RuntimeBroker1.exe
explorer.exe
User:
admin
Integrity Level:
HIGH
Description:
Exit code:
0
Version:
1.2.0.0
Modules
Images
c:\users\admin\desktop\runtimebroker1.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
3396"C:\Program Files (x86)\RB\RuntimeBroker.exe"C:\Program Files (x86)\RB\RuntimeBroker.exe
RuntimeBroker1.exe
User:
admin
Integrity Level:
HIGH
Description:
Version:
1.2.0.0
Modules
Images
c:\program files (x86)\rb\runtimebroker.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
6180C:\WINDOWS\System32\slui.exe -EmbeddingC:\Windows\System32\slui.exe
svchost.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows Activation Client
Exit code:
0
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
Total events
3 842
Read events
3 812
Write events
30
Delete events
0

Modification events

(PID) Process:(2076) RuntimeBroker1.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\RuntimeBroker1_RASAPI32
Operation:writeName:EnableFileTracing
Value:
0
(PID) Process:(2076) RuntimeBroker1.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\RuntimeBroker1_RASAPI32
Operation:writeName:EnableAutoFileTracing
Value:
0
(PID) Process:(2076) RuntimeBroker1.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\RuntimeBroker1_RASAPI32
Operation:writeName:EnableConsoleTracing
Value:
0
(PID) Process:(2076) RuntimeBroker1.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\RuntimeBroker1_RASAPI32
Operation:writeName:FileTracingMask
Value:
(PID) Process:(2076) RuntimeBroker1.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\RuntimeBroker1_RASAPI32
Operation:writeName:ConsoleTracingMask
Value:
(PID) Process:(2076) RuntimeBroker1.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\RuntimeBroker1_RASAPI32
Operation:writeName:MaxFileSize
Value:
1048576
(PID) Process:(2076) RuntimeBroker1.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\RuntimeBroker1_RASAPI32
Operation:writeName:FileDirectory
Value:
%windir%\tracing
(PID) Process:(2076) RuntimeBroker1.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\RuntimeBroker1_RASMANCS
Operation:writeName:EnableFileTracing
Value:
0
(PID) Process:(2076) RuntimeBroker1.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\RuntimeBroker1_RASMANCS
Operation:writeName:EnableAutoFileTracing
Value:
0
(PID) Process:(2076) RuntimeBroker1.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\RuntimeBroker1_RASMANCS
Operation:writeName:EnableConsoleTracing
Value:
0
Executable files
1
Suspicious files
1
Text files
0
Unknown types
0

Dropped files

PID
Process
Filename
Type
2648RuntimeBroker1.exeC:\Program Files (x86)\RB\RuntimeBroker.exeexecutable
MD5:D285698235DEA8AE7E088919FEEDEF11
SHA256:C413D08829F1DA9E20E13C2E9BE797CF8447F1041F52C48F12124AD615EA3E8E
3396RuntimeBroker.exeC:\Users\admin\AppData\Roaming\svchost2\06-21-2025binary
MD5:EAE1269F0B1701E59C3F677C4CAFBD2F
SHA256:F12A6EF46D645DCAAA1F57F36E07CA02F6CFDFFA5BD052D67BAC9D56DC44A3D8
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
18
TCP/UDP connections
45
DNS requests
22
Threats
16

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
2076
RuntimeBroker1.exe
GET
301
88.198.193.213:80
http://telize.com/geoip
unknown
malicious
2076
RuntimeBroker1.exe
GET
200
3.33.130.190:80
http://freegeoip.net/xml/
unknown
shared
2076
RuntimeBroker1.exe
GET
200
104.26.13.205:80
http://api.ipify.org/
unknown
malicious
1268
svchost.exe
GET
200
184.25.50.10:80
http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl
unknown
whitelisted
1268
svchost.exe
GET
200
95.101.149.131:80
http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl
unknown
whitelisted
2648
RuntimeBroker1.exe
GET
301
88.198.193.213:80
http://telize.com/geoip
unknown
malicious
2648
RuntimeBroker1.exe
GET
200
3.33.130.190:80
http://freegeoip.net/xml/
unknown
shared
2648
RuntimeBroker1.exe
GET
200
104.26.13.205:80
http://api.ipify.org/
unknown
malicious
3396
RuntimeBroker.exe
GET
200
104.26.13.205:80
http://api.ipify.org/
unknown
malicious
3396
RuntimeBroker.exe
GET
301
88.198.193.213:80
http://telize.com/geoip
unknown
malicious
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
1268
svchost.exe
51.124.78.146:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
NL
whitelisted
5944
MoUsoCoreWorker.exe
51.124.78.146:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
NL
whitelisted
5116
RUXIMICS.exe
51.124.78.146:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
NL
whitelisted
2076
RuntimeBroker1.exe
88.198.193.213:80
telize.com
Hetzner Online GmbH
DE
malicious
2076
RuntimeBroker1.exe
88.198.193.213:443
telize.com
Hetzner Online GmbH
DE
malicious
4
System
192.168.100.255:138
whitelisted
2076
RuntimeBroker1.exe
3.33.130.190:80
freegeoip.net
AMAZON-02
US
shared
2076
RuntimeBroker1.exe
104.26.13.205:80
api.ipify.org
CLOUDFLARENET
US
shared
2336
svchost.exe
172.211.123.249:443
client.wns.windows.com
MICROSOFT-CORP-MSN-AS-BLOCK
FR
whitelisted

DNS requests

Domain
IP
Reputation
settings-win.data.microsoft.com
  • 51.124.78.146
  • 51.104.136.2
whitelisted
google.com
  • 142.250.184.206
whitelisted
telize.com
  • 88.198.193.213
malicious
www.telize.com
  • 88.198.193.213
malicious
freegeoip.net
  • 3.33.130.190
  • 15.197.148.33
shared
api.ipify.org
  • 104.26.13.205
  • 104.26.12.205
  • 172.67.74.152
shared
client.wns.windows.com
  • 172.211.123.249
whitelisted
login.live.com
  • 40.126.31.1
  • 40.126.31.128
  • 20.190.159.23
  • 20.190.159.130
  • 40.126.31.69
  • 40.126.31.2
  • 40.126.31.71
  • 40.126.31.3
whitelisted
ocsp.digicert.com
  • 2.23.77.188
whitelisted
crl.microsoft.com
  • 184.25.50.10
  • 184.25.50.8
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)
2076
RuntimeBroker1.exe
Device Retrieving External IP Address Detected
POLICY [ANY.RUN] External IP Lookup by HTTP (api .ipify .org)
2076
RuntimeBroker1.exe
Device Retrieving External IP Address Detected
ET INFO External IP Lookup api.ipify.org
2200
svchost.exe
Misc activity
ET INFO External IP Lookup Domain (ipify .org) in DNS Lookup
2648
RuntimeBroker1.exe
Device Retrieving External IP Address Detected
POLICY [ANY.RUN] External IP Lookup by HTTP (api .ipify .org)
2648
RuntimeBroker1.exe
Device Retrieving External IP Address Detected
ET INFO External IP Lookup api.ipify.org
2200
svchost.exe
Potentially Bad Traffic
ET DYN_DNS DYNAMIC_DNS Query to a *.duckdns .org Domain
3396
RuntimeBroker.exe
Device Retrieving External IP Address Detected
ET INFO External IP Lookup api.ipify.org
3396
RuntimeBroker.exe
Device Retrieving External IP Address Detected
POLICY [ANY.RUN] External IP Lookup by HTTP (api .ipify .org)
2200
svchost.exe
Misc activity
ET DYN_DNS DYNAMIC_DNS Query to *.duckdns. Domain
No debug info