Malware analysis windowsupdateagent30-x86.exe Malicious activity

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File name:	windowsupdateagent30-x86.exe
Full analysis:	https://app.any.run/tasks/d7551b79-0597-47ff-a2a5-a2595027271e
Verdict:	Malicious activity
Analysis date:	May 28, 2025, 20:42:15
OS:	Windows 10 Professional (build: 19044, 64 bit)
Indicators:
MIME:	application/vnd.microsoft.portable-executable
File info:	PE32 executable (GUI) Intel 80386, for MS Windows, 3 sections
MD5:	F723820B8656E82958FA7ED854A7EEFE
SHA1:	50186EC913A4896A92D72E5E5384693BF3A71182
SHA256:	B2512E0C2786F72ED41559580261C782A13FB5EA7FE23878873F83ECAEEEC25F
SSDEEP:	98304:bEQ5paQMpw6sfqfeIYqp7sO703ERL9bB5itiO7Ek4d+ciCZwxZVXURShoxGA7/uW:DxVca+k8R2I

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
- Executing a file with an untrusted certificate
  - windowsupdateagent30-x86.exe (PID: 7424)
SUSPICIOUS
- Executable content was dropped or overwritten
  - windowsupdateagent30-x86.exe (PID: 7528)
- Starts a Microsoft application from unusual location
  - windowsupdateagent30-x86.exe (PID: 7424)
  - windowsupdateagent30-x86.exe (PID: 7528)
- Process drops legitimate windows executable
  - windowsupdateagent30-x86.exe (PID: 7528)
INFO
- The sample compiled with english language support
  - windowsupdateagent30-x86.exe (PID: 7528)
- The sample compiled with chinese language support
  - windowsupdateagent30-x86.exe (PID: 7528)
- The sample compiled with german language support
  - windowsupdateagent30-x86.exe (PID: 7528)
- The sample compiled with spanish language support
  - windowsupdateagent30-x86.exe (PID: 7528)
- The sample compiled with swedish language support
  - windowsupdateagent30-x86.exe (PID: 7528)
- The sample compiled with french language support
  - windowsupdateagent30-x86.exe (PID: 7528)
- The sample compiled with czech language support
  - windowsupdateagent30-x86.exe (PID: 7528)
- The sample compiled with japanese language support
  - windowsupdateagent30-x86.exe (PID: 7528)
- Reads the computer name
  - windowsupdateagent30-x86.exe (PID: 7528)
  - wusetup.exe (PID: 7688)
- The sample compiled with arabic language support
  - windowsupdateagent30-x86.exe (PID: 7528)
- The sample compiled with portuguese language support
  - windowsupdateagent30-x86.exe (PID: 7528)
- The sample compiled with turkish language support
  - windowsupdateagent30-x86.exe (PID: 7528)
- Checks supported languages
  - wusetup.exe (PID: 7688)
  - windowsupdateagent30-x86.exe (PID: 7528)
- The sample compiled with polish language support
  - windowsupdateagent30-x86.exe (PID: 7528)
- Reads the software policy settings
  - slui.exe (PID: 7572)
- The sample compiled with russian language support
  - windowsupdateagent30-x86.exe (PID: 7528)
- The sample compiled with korean language support
  - windowsupdateagent30-x86.exe (PID: 7528)
- Reads the machine GUID from the registry
  - windowsupdateagent30-x86.exe (PID: 7528)
- The sample compiled with Italian language support
  - windowsupdateagent30-x86.exe (PID: 7528)

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

.exe	\|	MS generic-sfx Cabinet File Unpacker (32/64bit MSCFU) (82.5)
.exe	\|	Win32 Executable MS Visual C++ (generic) (7.3)
.exe	\|	Win64 Executable (generic) (6.5)
.dll	\|	Win32 Dynamic Link Library (generic) (1.5)
.exe	\|	Win32 Executable (generic) (1)

EXIF

EXE

MachineType:	Intel 386 or later, and compatibles
TimeStamp:	2005:06:28 16:55:01+00:00
ImageFileCharacteristics:	No relocs, Executable, No line numbers, No symbols, 32-bit, Removable run from swap, Net run from swap
PEType:	PE32
LinkerVersion:	7.1
CodeSize:	31232
InitializedDataSize:	72704
UninitializedDataSize:	-
EntryPoint:	0x5a45
OSVersion:	5.2
ImageVersion:	5.2
SubsystemVersion:	4
Subsystem:	Windows GUI
FileVersionNumber:	6.2.29.0
ProductVersionNumber:	6.2.29.0
FileFlagsMask:	0x003f
FileFlags:	(none)
FileOS:	Windows NT 32-bit
ObjectFileType:	Executable application
FileSubtype:	-
LanguageCode:	English (U.S.)
CharacterSet:	Unicode
CompanyName:	Microsoft Corporation
FileDescription:	Self-Extracting Cabinet
FileVersion:	6.2.0029.0 (SRV03_QFE.031113-0918)
InternalName:	SFXCAB.EXE
LegalCopyright:	© Microsoft Corporation. All rights reserved.
OriginalFileName:	SFXCAB.EXE
ProductName:	Microsoft® Windows® Operating System
ProductVersion:	6.2.0029.0

No data.

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All screenshots are available in the full report

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Total processes

135

Monitored processes

Malicious processes

Suspicious processes

Behavior graph

Click at the process to see the details

Process information

PID

CMD

Path

Indicators

Parent process

7192

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

7424

"C:\Users\admin\AppData\Local\Temp\windowsupdateagent30-x86.exe"

C:\Users\admin\AppData\Local\Temp\windowsupdateagent30-x86.exe

—

explorer.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Self-Extracting Cabinet

Exit code:

3221226540

Version:

6.2.0029.0 (SRV03_QFE.031113-0918)

Modules

Images
c:\users\admin\appdata\local\temp\windowsupdateagent30-x86.exe
c:\windows\system32\ntdll.dll
c:\windows\syswow64\ntdll.dll

7528

"C:\Users\admin\AppData\Local\Temp\windowsupdateagent30-x86.exe"

C:\Users\admin\AppData\Local\Temp\windowsupdateagent30-x86.exe

explorer.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

HIGH

Description:

Self-Extracting Cabinet

Exit code:

53258

Version:

6.2.0029.0 (SRV03_QFE.031113-0918)

Modules

Images
c:\users\admin\appdata\local\temp\windowsupdateagent30-x86.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\acgenral.dll

7540

C:\WINDOWS\system32\SppExtComObj.exe -Embedding

C:\Windows\System32\SppExtComObj.Exe

—

svchost.exe

User:

NETWORK SERVICE

Company:

Microsoft Corporation

Integrity Level:

SYSTEM

Description:

KMS Connection Broker

Version:

10.0.19041.3996 (WinBuild.160101.0800)

Modules

Images
c:\windows\system32\sppextcomobj.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\oleaut32.dll

7572

"C:\WINDOWS\System32\SLUI.exe" RuleId=3482d82e-ca2c-4e1f-8864-da0267b484b2;Action=AutoActivate;AppId=55c92734-d682-4d71-983e-d6ec3f16059f;SkuId=4de7cb65-cdf1-4de9-8ae8-e3cce27b9f2c;NotificationInterval=1440;Trigger=TimerEvent

C:\Windows\System32\slui.exe

SppExtComObj.Exe

User:

NETWORK SERVICE

Company:

Microsoft Corporation

Integrity Level:

SYSTEM

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

7688

c:\d35ab894a8a08b358e496c8b\wusetup.exe

C:\d35ab894a8a08b358e496c8b\wusetup.exe

—

windowsupdateagent30-x86.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

HIGH

Description:

Windows Update Setup

Exit code:

53258

Version:

7.4.7600.226 (winmain_wtr_wsus3sp2(wmbla).090806-1834)

Modules

Images
c:\d35ab894a8a08b358e496c8b\wusetup.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\acgenral.dll

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Total events

623

Read events

623

Write events

Delete events

Modification events

No data

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Executable files

157

Suspicious files

Text files

Unknown types

Dropped files

PID	Process	Filename		Type
7528	windowsupdateagent30-x86.exe	C:\d35ab894a8a08b358e496c8b\WUClient-SelfUpdate-ActiveX.cab		compressed
		MD5:232CCCBB86D2AFAE9B60C42D23D885B9	SHA256:F2D9F27A725B6AEC105B42D434EFA683D3B8A85F87B87A47A846703C5166163A
7528	windowsupdateagent30-x86.exe	C:\d35ab894a8a08b358e496c8b\msxml3.dll		executable
		MD5:E7A3FCB568797785750308DD6DB2BDC0	SHA256:E56FAAC4EA3C7C392FDE178851599EE4DF244B0AF743F8D2239EB093704AFA71
7528	windowsupdateagent30-x86.exe	C:\d35ab894a8a08b358e496c8b\WUClient-SelfUpdate-Core-TopLevel.cab		compressed
		MD5:FB59D11E7CE0880CD564CFE1E60933C0	SHA256:92514168119F26A7149FEB0C01C5DF39EC75700DDE193EFCBF5644DD992A0942
7528	windowsupdateagent30-x86.exe	C:\d35ab894a8a08b358e496c8b\WUClient-SelfUpdate-Aux-TopLevel.cab		compressed
		MD5:0A0FE198EFE05D6FA8F4DC48DD8CAAD3	SHA256:12F355D099956D93817AC4F249242FDA428F9FED7B03B03438D019384D3F2101
7528	windowsupdateagent30-x86.exe	C:\d35ab894a8a08b358e496c8b\wuapi.dll.mui_fi		executable
		MD5:7566307C21A344FDDBB52B407A5D410F	SHA256:D428743C5E7258B60903A1AC27962D8FCA4F3E8D2391F5A36BF49664B6848670
7528	windowsupdateagent30-x86.exe	C:\d35ab894a8a08b358e496c8b\wuapi.dll.mui_de		executable
		MD5:4D8E7E2AAB4DC36E3C4E91E4CD5F020F	SHA256:49F4698BB700B07F351F5A9EF89AEECECC93077D5CFB5AE7FD72F4307F69EB18
7528	windowsupdateagent30-x86.exe	C:\d35ab894a8a08b358e496c8b\wuapi.dll.mui_en		executable
		MD5:52CF3B23095C47043FC060D9F1A74D2E	SHA256:D33206182504C9AFC64B7A7F3CD0574E3C1F79361D0E459527FA4F788F666401
7528	windowsupdateagent30-x86.exe	C:\d35ab894a8a08b358e496c8b\wuapi.dll.mui_el		executable
		MD5:9B5BB7DDF4BAD4B06138448DA6DE89FB	SHA256:72AB1B6891B08D1CC781E58F0CDBE11C7DF34942B241E34EE165224F4C6EE422
7528	windowsupdateagent30-x86.exe	C:\d35ab894a8a08b358e496c8b\wuapi.dll.mui_da		executable
		MD5:966CA3C3F82C2250C8013B30FD9C343C	SHA256:E4F08B0BD61F7040B3626118BD577A96F9351AC71EDD4865F940F4A9D21BE149
7528	windowsupdateagent30-x86.exe	C:\d35ab894a8a08b358e496c8b\winhttp.dll		executable
		MD5:D9CCCBCA7DBFB45D91FCB6FAF3B9AC08	SHA256:4E0C219B0A0C7399FBD3C0728340BECF159B97035D4DA17BE1E5829A093B027C

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
5496	MoUsoCoreWorker.exe	GET	200	2.16.168.114:80	http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl	unknown	—	—	whitelisted
—	—	GET	200	23.219.150.101:80	http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl	unknown	—	—	whitelisted
6544	svchost.exe	GET	200	23.40.158.218:80	http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D	unknown	—	—	whitelisted
7976	SIHClient.exe	GET	200	2.23.181.156:80	http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.crl	unknown	—	—	whitelisted
7976	SIHClient.exe	GET	200	2.23.181.156:80	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
—	—	51.104.136.2:443	—	MICROSOFT-CORP-MSN-AS-BLOCK	IE	whitelisted
4	System	192.168.100.255:137	—	—	—	whitelisted
5496	MoUsoCoreWorker.exe	2.16.168.114:80	crl.microsoft.com	Akamai International B.V.	RU	whitelisted
—	—	23.219.150.101:80	www.microsoft.com	AKAMAI-AS	CL	whitelisted
5796	svchost.exe	51.104.136.2:443	—	MICROSOFT-CORP-MSN-AS-BLOCK	IE	whitelisted
5024	RUXIMICS.exe	51.104.136.2:443	—	MICROSOFT-CORP-MSN-AS-BLOCK	IE	whitelisted
4	System	192.168.100.255:138	—	—	—	whitelisted
3216	svchost.exe	172.211.123.248:443	client.wns.windows.com	MICROSOFT-CORP-MSN-AS-BLOCK	FR	whitelisted
6544	svchost.exe	20.190.160.5:443	login.live.com	MICROSOFT-CORP-MSN-AS-BLOCK	NL	whitelisted
6544	svchost.exe	23.40.158.218:80	ocsp.digicert.com	AKAMAI-AS	MX	whitelisted

DNS requests

Domain	IP	Reputation
google.com	142.250.186.174	whitelisted
crl.microsoft.com	2.16.168.114 2.16.168.124	whitelisted
www.microsoft.com	23.219.150.101 2.23.181.156	whitelisted
client.wns.windows.com	172.211.123.248	whitelisted
login.live.com	20.190.160.5 20.190.160.128 40.126.32.133 20.190.160.14 20.190.160.132 20.190.160.22 20.190.160.3 40.126.32.134	whitelisted
ocsp.digicert.com	23.40.158.218	whitelisted
settings-win.data.microsoft.com	4.231.128.59	whitelisted
slscr.update.microsoft.com	172.202.163.200	whitelisted
fe3cr.delivery.mp.microsoft.com	52.165.164.15	whitelisted
activation-v2.sls.microsoft.com	—	whitelisted

Threats

No threats detected

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No debug info

General Info

windowsupdateagent30-x86.exe

F723820B8656E82958FA7ED854A7EEFE

50186EC913A4896A92D72E5E5384693BF3A71182

B2512E0C2786F72ED41559580261C782A13FB5EA7FE23878873F83ECAEEEC25F

98304:bEQ5paQMpw6sfqfeIYqp7sO703ERL9bB5itiO7Ek4d+ciCZwxZVXURShoxGA7/uW:DxVca+k8R2I

Software environment set and analysis options

Launch configuration

Software preset

Hotfixes

Behavior activities

MALICIOUS

Executing a file with an untrusted certificate

SUSPICIOUS

Executable content was dropped or overwritten

Starts a Microsoft application from unusual location

Process drops legitimate windows executable

INFO

The sample compiled with english language support

The sample compiled with chinese language support

The sample compiled with german language support

The sample compiled with spanish language support

The sample compiled with swedish language support

The sample compiled with french language support

The sample compiled with czech language support

The sample compiled with japanese language support

Reads the computer name

The sample compiled with arabic language support

The sample compiled with portuguese language support

The sample compiled with turkish language support

Checks supported languages

The sample compiled with polish language support

Reads the software policy settings

The sample compiled with russian language support

The sample compiled with korean language support

Reads the machine GUID from the registry

The sample compiled with Italian language support

Malware configuration

Static information

TRiD

EXIF

EXE

Video and screenshots

Processes

Behavior graph

Specs description

Process information

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