Malware analysis steamclient.zip Malicious activity | ANY.RUN

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File name:	steamclient.zip
Full analysis:	https://app.any.run/tasks/ff0198cf-f8e4-49f0-a4ec-f34aa5c7ae48
Verdict:	Malicious activity
Analysis date:	June 19, 2025, 00:13:05
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:	3FC76A4EC97328036690B44301CE302F
SHA1:	B6C961B438D1A9E2DD1D5015BBAF05759FF601FD
SHA256:	0A98BE2AD44FFE8D01A77FB3B2848BE1D82BFAFE02A770948AECC54F51A1FD84
SSDEEP:	98304:eQ20F0oXLL/+lhQARUKpPhfbZ4njSC4pRJo5pjIBLuT59i711kVNh+z3T0gddEml:eI7IYmKgXcCUHS+2efY7YamiGXU4M

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:: 120 seconds
Heavy Evasion option:: off
Network geolocation:: off
Additional time used:: 60 seconds
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

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MALICIOUS
- Executing a file with an untrusted certificate
  - _LAUNCHER.exe (PID: 3720)
- Generic archive extractor
  - WinRAR.exe (PID: 6684)
SUSPICIOUS
No suspicious indicators.
INFO
- Executable content was dropped or overwritten
  - WinRAR.exe (PID: 6684)
- The sample compiled with english language support
  - WinRAR.exe (PID: 6684)
- Manual execution by a user
  - _LAUNCHER.exe (PID: 3720)
- Checks supported languages
  - _LAUNCHER.exe (PID: 3720)
- Reads the computer name
  - _LAUNCHER.exe (PID: 3720)

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:	0x0008
ZipCompression:	Deflated
ZipModifyDate:	2025:04:05 14:01:38
ZipCRC:	0x207cb7ab
ZipCompressedSize:	7206423
ZipUncompressedSize:	15131560
ZipFileName:	steamclient.dll

No data.

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All screenshots are available in the full report

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Total processes

139

Monitored processes

Malicious processes

Suspicious processes

Behavior graph

Click at the process to see the details

Process information

PID

CMD

Path

Indicators

Parent process

2468

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

2532

C:\WINDOWS\System32\rundll32.exe C:\WINDOWS\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding

C:\Windows\System32\rundll32.exe

—

svchost.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

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

3720

"C:\Users\admin\Desktop\steamclient\_LAUNCHER.exe"

C:\Users\admin\Desktop\steamclient\_LAUNCHER.exe

—

explorer.exe

User:

admin

Company:

GSE

Integrity Level:

MEDIUM

Description:

GSE

Exit code:

Version:

08.56.38.63

Modules

Images
c:\users\admin\desktop\steamclient\_launcher.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\apphelp.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

6684

"C:\Program Files\WinRAR\WinRAR.exe" C:\Users\admin\AppData\Local\Temp\steamclient.zip

C:\Program Files\WinRAR\WinRAR.exe

explorer.exe

User:

admin

Company:

Alexander Roshal

Integrity Level:

MEDIUM

Description:

WinRAR archiver

Exit code:

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

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Total events

2 560

Read events

2 526

Write events

Delete events

Modification events


(PID) Process:	(6684) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory
Operation:	write	Name:	3
Value: C:\Users\admin\Desktop\preferences.zip
(PID) Process:	(6684) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory
Operation:	write	Name:	2
Value: C:\Users\admin\Desktop\chromium_ext.zip
(PID) Process:	(6684) 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:	(6684) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\ArcHistory
Operation:	write	Name:	0
Value: C:\Users\admin\AppData\Local\Temp\steamclient.zip
(PID) Process:	(6684) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	name
Value: 120
(PID) Process:	(6684) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	size
Value: 80
(PID) Process:	(6684) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	type
Value: 120
(PID) Process:	(6684) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	mtime
Value: 100
(PID) Process:	(6684) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\DialogEditHistory\ExtrPath
Operation:	delete value	Name:	15
Value:
(PID) Process:	(6684) WinRAR.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\WinRAR\DialogEditHistory\ExtrPath
Operation:	delete value	Name:	14
Value:

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Executable files

Suspicious files

Text files

Unknown types

Dropped files

PID	Process	Filename		Type
6684	WinRAR.exe	C:\Users\admin\Desktop\steamclient\GameOverlayRenderer64.dll		executable
		MD5:ECE746C001DD4943C6D1F702D87D13C0	SHA256:AED664C80B625BB6BDD492DAF86D060E54E43A694B04C7908790AA10D2FE01C6
6684	WinRAR.exe	C:\Users\admin\Desktop\steamclient\_LAUNCHER.exe		executable
		MD5:F94BD57B1DD83B0072550DC06D162FD9	SHA256:C5764BAD9D5E65A079BC3613BB8497A95ECEC355DFCAE1336D45C2D0F4D0F319
6684	WinRAR.exe	C:\Users\admin\Desktop\steamclient\steamclient64.dll		executable
		MD5:9D596C6C1538D376D7224D1469E71C5E	SHA256:4A409226BA7700E347F97013BA2D26509760114290791B8EDE021FDB036B45A4
6684	WinRAR.exe	C:\Users\admin\Desktop\steamclient\ColdClientLoader.ini		text
		MD5:05C583F39C9CAE724282BA08F50CCFA7	SHA256:D71214F9F7E348C6FEF3C94916465CD1DD45A88580A65C2A2FC841DDC8E20BEC
6684	WinRAR.exe	C:\Users\admin\Desktop\steamclient\steamclient.dll		executable
		MD5:685C001046FB80F8D2A8699F471F5235	SHA256:B5B39E755A889E2BC874EDCB81D4363CF12EB54C129FF6E6A00FD832B0D44576
6684	WinRAR.exe	C:\Users\admin\Desktop\steamclient\GameOverlayRenderer.dll		executable
		MD5:8E47BD5744BD51AD6C95456B1483BEDF	SHA256:79D9522667F86B770BFA79599426F131E94C0C0F4DCFB6B1DA70C0530B3F9FF8

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
2524	svchost.exe	GET	200	2.17.190.73:80	http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D	unknown	—	—	whitelisted
1268	svchost.exe	GET	200	23.48.23.143:80	http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl	unknown	—	—	whitelisted
1268	svchost.exe	GET	200	23.218.209.163:80	http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl	unknown	—	—	whitelisted
1036	SIHClient.exe	GET	200	23.218.209.163:80	http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.crl	unknown	—	—	whitelisted
1036	SIHClient.exe	GET	200	23.218.209.163:80	http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.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
1268	svchost.exe	20.73.194.208:443	—	MICROSOFT-CORP-MSN-AS-BLOCK	NL	whitelisted
4	System	192.168.100.255:137	—	—	—	whitelisted
1644	RUXIMICS.exe	20.73.194.208:443	—	MICROSOFT-CORP-MSN-AS-BLOCK	NL	whitelisted
5944	MoUsoCoreWorker.exe	20.73.194.208:443	—	MICROSOFT-CORP-MSN-AS-BLOCK	NL	whitelisted
4	System	192.168.100.255:138	—	—	—	whitelisted
2336	svchost.exe	172.211.123.249:443	client.wns.windows.com	MICROSOFT-CORP-MSN-AS-BLOCK	FR	whitelisted
2524	svchost.exe	20.190.159.131:443	login.live.com	MICROSOFT-CORP-MSN-AS-BLOCK	IE	whitelisted
2524	svchost.exe	2.17.190.73:80	ocsp.digicert.com	AKAMAI-AS	DE	whitelisted
1268	svchost.exe	4.231.128.59:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	IE	whitelisted
1268	svchost.exe	23.48.23.143:80	crl.microsoft.com	Akamai International B.V.	DE	whitelisted

DNS requests

Domain	IP	Reputation
google.com	142.250.186.78	whitelisted
client.wns.windows.com	172.211.123.249	whitelisted
login.live.com	20.190.159.131 20.190.159.128 40.126.31.131 40.126.31.71 20.190.159.71 20.190.159.68 20.190.159.129 40.126.31.3	whitelisted
ocsp.digicert.com	2.17.190.73	whitelisted
settings-win.data.microsoft.com	4.231.128.59 51.124.78.146	whitelisted
crl.microsoft.com	23.48.23.143 23.48.23.176 23.48.23.166 23.48.23.156	whitelisted
www.microsoft.com	23.218.209.163	whitelisted
nexusrules.officeapps.live.com	52.111.229.19	whitelisted
slscr.update.microsoft.com	4.175.87.197	whitelisted
fe3cr.delivery.mp.microsoft.com	40.69.42.241	whitelisted

Threats

No threats detected

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No debug info

General Info

steamclient.zip

3FC76A4EC97328036690B44301CE302F

B6C961B438D1A9E2DD1D5015BBAF05759FF601FD

0A98BE2AD44FFE8D01A77FB3B2848BE1D82BFAFE02A770948AECC54F51A1FD84

98304:eQ20F0oXLL/+lhQARUKpPhfbZ4njSC4pRJo5pjIBLuT59i711kVNh+z3T0gddEml:eI7IYmKgXcCUHS+2efY7YamiGXU4M

Software environment set and analysis options

Launch configuration

Software preset

Hotfixes

Behavior activities

MALICIOUS

Executing a file with an untrusted certificate

Generic archive extractor

SUSPICIOUS

INFO

Executable content was dropped or overwritten

The sample compiled with english language support

Manual execution by a user

Checks supported languages

Reads the computer name

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

Registry activity

Modification events

Files activity

Dropped files

Network activity

HTTP requests

Connections

DNS requests

Threats

Debug output strings