Malware analysis [Guru3D.com]-RTSS.zip Malicious activity

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File name:	[Guru3D.com]-RTSS.zip
Full analysis:	https://app.any.run/tasks/59bc7292-4a6e-4252-a2ec-d0d4d1bce744
Verdict:	Malicious activity
Analysis date:	April 06, 2025, 14:20:43
OS:	Windows 10 Professional (build: 19044, 64 bit)
Tags:	arch-exec
Indicators:
MIME:	application/zip
File info:	Zip archive data, at least v2.0 to extract, compression method=deflate
MD5:	6127E45FB3202BE5675B1ADAD947F905
SHA1:	7DD8A12158649B37681490A7C5F16B818546B62A
SHA256:	E11FE1D98C2EE29A6E052EFA804FAA363774A09F8636073D0C81A7060DE1C09F
SSDEEP:	98304:vDcP28p58u+mn6tiIsxbTCHgUkClFO7yo1YpsEL1v/M63kG+8O/I+LuPTN6uJmZN:/miDLRCGZoozCKwawkdj5T1Q6M8EFL

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 (122.0.6261.70)
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 (122.0.2365.59)
Microsoft Edge Update (1.3.185.17)
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) (123.0)
Mozilla Maintenance Service (123.0)
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)
Skype version 8.104 (8.104)
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

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MALICIOUS
- Vulnerable driver has been detected
  - RTSSSetup736.exe (PID: 7896)
SUSPICIOUS
- Malware-specific behavior (creating "System.dll" in Temp)
  - RTSSSetup736.exe (PID: 7896)
- Executable content was dropped or overwritten
  - RTSSSetup736.exe (PID: 7896)
- There is functionality for taking screenshot (YARA)
  - RTSSSetup736.exe (PID: 7896)
- Reads security settings of Internet Explorer
  - RTSSSetup736.exe (PID: 7896)
  - WinRAR.exe (PID: 7580)
- The process creates files with name similar to system file names
  - RTSSSetup736.exe (PID: 7896)
- Uses RUNDLL32.EXE to load library
  - rundll32.exe (PID: 8008)
  - RTSSSetup736.exe (PID: 7896)
- Creates a software uninstall entry
  - RTSSSetup736.exe (PID: 7896)
- Drops a system driver (possible attempt to evade defenses)
  - RTSSSetup736.exe (PID: 7896)
INFO
- Checks supported languages
  - RTSSSetup736.exe (PID: 7896)
- Executable content was dropped or overwritten
  - WinRAR.exe (PID: 7580)
- The sample compiled with english language support
  - RTSSSetup736.exe (PID: 7896)
- Reads the computer name
  - RTSSSetup736.exe (PID: 7896)
- Create files in a temporary directory
  - RTSSSetup736.exe (PID: 7896)
- Process checks computer location settings
  - RTSSSetup736.exe (PID: 7896)
- Creates files in the program directory
  - RTSSSetup736.exe (PID: 7896)

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

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No Malware configuration.

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TRiD

.zip	\|	ZIP compressed archive (100)

EXIF

ZIP

ZipRequiredVersion:	20
ZipBitFlag:	0x0002
ZipCompression:	Deflated
ZipModifyDate:	2024:03:23 10:04:06
ZipCRC:	0xc70c84d6
ZipCompressedSize:	16710989
ZipUncompressedSize:	16790016
ZipFileName:	RTSSSetup736.exe

No data.

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All screenshots are available in the full report

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Total processes

136

Monitored processes

Malicious processes

Suspicious processes

Behavior graph

Click at the process to see the details

Process information

PID

CMD

Path

Indicators

Parent process

2852

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

7580

"C:\Program Files\WinRAR\WinRAR.exe" C:\Users\admin\AppData\Local\Temp\[Guru3D.com]-RTSS.zip

C:\Program Files\WinRAR\WinRAR.exe

explorer.exe

User:

admin

Company:

Alexander Roshal

Integrity Level:

MEDIUM

Description:

WinRAR archiver

Version:

5.91.0

Modules

Images
c:\program files\winrar\winrar.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\user32.dll
c:\windows\system32\win32u.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\gdi32full.dll
c:\windows\system32\msvcp_win.dll
c:\windows\system32\ucrtbase.dll

7848

"C:\Users\admin\AppData\Local\Temp\Rar$EXa7580.7045\RTSSSetup736.exe"

C:\Users\admin\AppData\Local\Temp\Rar$EXa7580.7045\RTSSSetup736.exe

—

WinRAR.exe

User:

admin

Integrity Level:

MEDIUM

Exit code:

3221226540

Modules

Images
c:\users\admin\appdata\local\temp\rar$exa7580.7045\rtsssetup736.exe
c:\windows\system32\ntdll.dll
c:\windows\syswow64\ntdll.dll

7896

"C:\Users\admin\AppData\Local\Temp\Rar$EXa7580.7045\RTSSSetup736.exe"

C:\Users\admin\AppData\Local\Temp\Rar$EXa7580.7045\RTSSSetup736.exe

WinRAR.exe

User:

admin

Integrity Level:

HIGH

Modules

Images
c:\users\admin\appdata\local\temp\rar$exa7580.7045\rtsssetup736.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\kernel32.dll
c:\windows\syswow64\kernelbase.dll
c:\windows\syswow64\apphelp.dll
c:\windows\syswow64\advapi32.dll

8008

"C:\Windows\System32\rundll32.exe" LockedList64.dll,GetSystemModulesCount64 0x001002D4

C:\Windows\SysWOW64\rundll32.exe

—

RTSSSetup736.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

HIGH

Description:

Windows host process (Rundll32)

Exit code:

Version:

10.0.19041.3636 (WinBuild.160101.0800)

Modules

Images
c:\windows\syswow64\rundll32.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\kernel32.dll
c:\windows\syswow64\kernelbase.dll
c:\windows\syswow64\apphelp.dll
c:\windows\syswow64\aclayers.dll

8020

"C:\Windows\System32\rundll32.exe" LockedList64.dll,GetSystemModulesCount64 0x001002D4

C:\Windows\System32\rundll32.exe

—

rundll32.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

HIGH

Description:

Windows host process (Rundll32)

Exit code:

Version:

10.0.19041.1 (WinBuild.160101.0800)

Modules

Images
c:\windows\system32\rundll32.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\combase.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\shcore.dll
c:\windows\system32\imagehlp.dll

8052

"C:\Windows\System32\rundll32.exe" LockedList64.dll,EnumSystemProcesses64 0x001102D4 1 1

C:\Windows\System32\rundll32.exe

—

RTSSSetup736.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

HIGH

Description:

Windows host process (Rundll32)

Exit code:

Version:

10.0.19041.1 (WinBuild.160101.0800)

Modules

Images
c:\windows\system32\rundll32.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\apphelp.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\combase.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\shcore.dll

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Total events

2 552

Read events

2 539

Write events

Delete events

Modification events


(PID) Process:	(7580) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory
Operation:	write	Name:	3
Value: C:\Users\admin\Desktop\preferences.zip
(PID) Process:	(7580) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory
Operation:	write	Name:	2
Value: C:\Users\admin\Desktop\chromium_ext.zip
(PID) Process:	(7580) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory
Operation:	write	Name:	1
Value: C:\Users\admin\Desktop\omni_23_10_2024_.zip
(PID) Process:	(7580) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory
Operation:	write	Name:	0
Value: C:\Users\admin\AppData\Local\Temp\[Guru3D.com]-RTSS.zip
(PID) Process:	(7580) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	name
Value: 120
(PID) Process:	(7580) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	size
Value: 80
(PID) Process:	(7580) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	type
Value: 120
(PID) Process:	(7580) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	mtime
Value: 100
(PID) Process:	(7896) RTSSSetup736.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall\RTSS
Operation:	write	Name:	Publisher
Value: Unwinder
(PID) Process:	(7896) RTSSSetup736.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall\RTSS
Operation:	write	Name:	DisplayName
Value: RivaTuner Statistics Server 7.3.6

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Executable files

Suspicious files

Text files

906

Unknown types

Dropped files

PID	Process	Filename		Type
7896	RTSSSetup736.exe	C:\Users\admin\AppData\Local\Temp\nsfDD24.tmp\StartMenu.dll		executable
		MD5:6581C243481C0BA91EC1BD9FD93F1C30	SHA256:72FA1A91185FDA8B68A49B9EBB8D5DDF00F899F590D1E657A58C229F9BD0A700
7896	RTSSSetup736.exe	C:\Users\admin\AppData\Local\Temp\nsfDD24.tmp\modern-wizard.bmp		image
		MD5:CBE40FD2B1EC96DAEDC65DA172D90022	SHA256:3AD2DC318056D0A2024AF1804EA741146CFC18CC404649A44610CBF8B2056CF2
7896	RTSSSetup736.exe	C:\Users\admin\AppData\Local\Temp\nsfDD24.tmp\LockedList64.dll		executable
		MD5:F982F688C44A109382504BE756E54A28	SHA256:FBE4C84D389B32D3646991F0F59C987D5052ECC0ECBAA4DA2BBEBD922FD3762C
7896	RTSSSetup736.exe	C:\Program Files (x86)\RivaTuner Statistics Server\DesktopOverlayHostLoader.exe		executable
		MD5:D9FF9504DA8B627B720FE8F62F3BD24D	SHA256:57DFCE7A5CFE97578A45B35731A327E88B22FEE0DBC4EC0B4DC1E919CC94E12F
7896	RTSSSetup736.exe	C:\Program Files (x86)\RivaTuner Statistics Server\Uninstall.exe		executable
		MD5:EBC5A05C86A9D3B185FC516FB584000B	SHA256:F5D0134FF25A0BEAEF528F58749E944595F1714CC9BC559F23A422B6135A81D9
7896	RTSSSetup736.exe	C:\Users\admin\AppData\Local\Temp\nsfDD24.tmp\nsDialogs.dll		executable
		MD5:CA5BB0EE2B698869C41C087C9854487C	SHA256:C719697D5CED17D97BBC48662327339CCEC7E03F6552AA1D5C248F6FA5F16324
7896	RTSSSetup736.exe	C:\Users\admin\AppData\Local\Temp\nsfDD24.tmp\System.dll		executable
		MD5:6E55A6E7C3FDBD244042EB15CB1EC739	SHA256:ACF90AB6F4EDC687E94AAF604D05E16E6CFB5E35873783B50C66F307A35C6506
7896	RTSSSetup736.exe	C:\Users\admin\AppData\Local\Temp\nsfDD24.tmp\LangDLL.dll		executable
		MD5:08DE81A4584F5201086F57A7A93ED83B	SHA256:4883CD4231744BE2DCA4433EF62824B7957A3C16BE54F8526270402D9413EBE6
7896	RTSSSetup736.exe	C:\Users\admin\AppData\Local\Temp\nsfDD24.tmp\LockedList.dll		executable
		MD5:84C93011C323095555FCFCBEBAB4DF83	SHA256:CF1B3D307918E11F4C90888EF65F9CAD0302EABF7235187EAAD5764646874340
7896	RTSSSetup736.exe	C:\Program Files (x86)\RivaTuner Statistics Server\libmfxsw64.dll		executable
		MD5:29BC29F7C4116ED33810A85C7DE74532	SHA256:B5EAA1918FFBDCDFAF91A4895DAC20B6325A9F53D20F343B7E7F05FF95C9AABD

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

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HTTP(S) requests

TCP/UDP connections

DNS requests

Threats

HTTP requests

PID	Process	Method	HTTP Code	IP	URL	CN	Type	Size	Reputation
—	—	GET	200	23.216.77.30:80	http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl	unknown	—	—	whitelisted
8160	SIHClient.exe	GET	200	23.52.120.96:80	http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.crl	unknown	—	—	whitelisted
5496	MoUsoCoreWorker.exe	GET	200	23.216.77.30:80	http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl	unknown	—	—	whitelisted
8160	SIHClient.exe	GET	200	23.52.120.96:80	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
—	—	40.127.240.158:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	IE	whitelisted
4	System	192.168.100.255:137	—	—	—	whitelisted
—	—	23.216.77.30:80	crl.microsoft.com	Akamai International B.V.	DE	whitelisted
5496	MoUsoCoreWorker.exe	23.216.77.30:80	crl.microsoft.com	Akamai International B.V.	DE	whitelisted
4	System	192.168.100.255:138	—	—	—	whitelisted
2104	svchost.exe	51.124.78.146:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	NL	whitelisted
3216	svchost.exe	20.7.1.246:443	client.wns.windows.com	MICROSOFT-CORP-MSN-AS-BLOCK	US	whitelisted
8160	SIHClient.exe	4.175.87.197:443	slscr.update.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	US	whitelisted
8160	SIHClient.exe	23.52.120.96:80	www.microsoft.com	AKAMAI-AS	DE	whitelisted
8160	SIHClient.exe	40.69.42.241:443	fe3cr.delivery.mp.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	IE	whitelisted

DNS requests

Domain	IP	Reputation
settings-win.data.microsoft.com	40.127.240.158 51.124.78.146	whitelisted
crl.microsoft.com	23.216.77.30 23.216.77.37 23.216.77.39 23.216.77.43 23.216.77.26 23.216.77.6 23.216.77.5 23.216.77.35 23.216.77.36	whitelisted
google.com	142.250.186.46	whitelisted
client.wns.windows.com	20.7.1.246	whitelisted
slscr.update.microsoft.com	4.175.87.197	whitelisted
www.microsoft.com	23.52.120.96	whitelisted
fe3cr.delivery.mp.microsoft.com	40.69.42.241	whitelisted
activation-v2.sls.microsoft.com	40.91.76.224	whitelisted

Threats

No threats detected

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No debug info

General Info

[Guru3D.com]-RTSS.zip

6127E45FB3202BE5675B1ADAD947F905

7DD8A12158649B37681490A7C5F16B818546B62A

E11FE1D98C2EE29A6E052EFA804FAA363774A09F8636073D0C81A7060DE1C09F

98304:vDcP28p58u+mn6tiIsxbTCHgUkClFO7yo1YpsEL1v/M63kG+8O/I+LuPTN6uJmZN:/miDLRCGZoozCKwawkdj5T1Q6M8EFL

Software environment set and analysis options

Launch configuration

Software preset

Hotfixes

Behavior activities

MALICIOUS

Vulnerable driver has been detected

SUSPICIOUS

Malware-specific behavior (creating "System.dll" in Temp)

Executable content was dropped or overwritten

There is functionality for taking screenshot (YARA)

Reads security settings of Internet Explorer

The process creates files with name similar to system file names

Uses RUNDLL32.EXE to load library

Creates a software uninstall entry

Drops a system driver (possible attempt to evade defenses)

INFO

Checks supported languages

Executable content was dropped or overwritten

The sample compiled with english language support

Reads the computer name

Create files in a temporary directory

Process checks computer location settings

Creates files in the program directory

Malware configuration

Static information

TRiD

EXIF

ZIP

Video and screenshots

Processes

Behavior graph

Specs description

Process information

Information

Modules

Information

Modules

Information

Modules

Information

Modules

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