Malware analysis CX64Proxy.dll Malicious activity | ANY.RUN

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File name:	CX64Proxy.dll
Full analysis:	https://app.any.run/tasks/fe1247c0-5492-47ff-9a5e-f0339e129095
Verdict:	Malicious activity
Analysis date:	August 02, 2024, 02:33:11
OS:	Windows 10 Professional (build: 19045, 64 bit)
Tags:	upx evasion
Indicators:
MIME:	application/x-dosexec
File info:	PE32+ executable (DLL) (console) x86-64, for MS Windows
MD5:	A0E57C722DBDFBCA6B442D781451CE79
SHA1:	F9C8E0B2029243ADF9574ADD54F3FF81A21E8DBE
SHA256:	048660468E44DBDDB5631F288A19060AC41CB82DAF2802DE46713DD8ED372B71
SSDEEP:	98304:tGqLwtt9Cs1Bs1wGqLwtt9Cs1Bs14OqZVcTMOK3Ht6qPt5NwW9BPC/W3g1XdqINj:oUTjw2

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:: 300 seconds
Heavy Evasion option:
Network geolocation:: off
Additional time used:: 240 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 (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
- Drops the executable file immediately after the start
  - rundll32.exe (PID: 6440)
SUSPICIOUS
- Uses NSLOOKUP.EXE to check DNS info
  - powershell.exe (PID: 2228)
- Starts POWERSHELL.EXE for commands execution
  - rundll32.exe (PID: 6440)
- Checks for external IP
  - nslookup.exe (PID: 1372)
INFO
- UPX packer has been detected
  - rundll32.exe (PID: 6440)

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	\|	Win64 Executable (generic) (87.3)
.exe	\|	Generic Win/DOS Executable (6.3)
.exe	\|	DOS Executable Generic (6.3)

EXIF

EXE

MachineType:	AMD AMD64
TimeStamp:	2015:11:23 03:17:04+00:00
ImageFileCharacteristics:	No relocs, Executable, No line numbers, No symbols, Large address aware, DLL
PEType:	PE32+
LinkerVersion:	8
CodeSize:	1416704
InitializedDataSize:	1904640
UninitializedDataSize:	-
EntryPoint:	0xfda70
OSVersion:	6
ImageVersion:	6
SubsystemVersion:	6
Subsystem:	Windows command line
FileVersionNumber:	1.2.0.0
ProductVersionNumber:	1.2.0.0
FileFlagsMask:	0x003f
FileFlags:	(none)
FileOS:	Win32
ObjectFileType:	Dynamic link library
FileSubtype:	-
LanguageCode:	English (U.S.)
CharacterSet:	Windows, Latin1
CompanyName:	Conexant Systems Inc.
FileDescription:	Conexant MFX APO Proxy
FileVersion:	1.2.0.0
LegalCopyright:	©Conexant Systems Inc. All rights reserved.
InternalName:	CX64Proxy.dll
OriginalFileName:	CX64Proxy.dll
ProductName:	Conexant Audio
ProductVersion:	1.2.0.0

No data.

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All screenshots are available in the full report

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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

1372

"C:\WINDOWS\system32\nslookup.exe" myip.opendns.com resolver1.opendns.com

C:\Windows\System32\nslookup.exe

powershell.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

nslookup

Exit code:

Version:

10.0.19041.1 (WinBuild.160101.0800)

Modules

Images
c:\windows\system32\nslookup.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\ws2_32.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\mswsock.dll
c:\windows\system32\dnsapi.dll
c:\windows\system32\iphlpapi.dll

2228

powershell.exe -command "& nslookup myip.opendns.com resolver1.opendns.com"

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

—

rundll32.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Windows PowerShell

Exit code:

Version:

10.0.19041.1 (WinBuild.160101.0800)

Modules

Images
c:\windows\system32\windowspowershell\v1.0\powershell.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\oleaut32.dll
c:\windows\system32\msvcp_win.dll
c:\windows\system32\atl.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\user32.dll

2584

\??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1

C:\Windows\System32\conhost.exe

—

powershell.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Console Window Host

Exit code:

Version:

10.0.19041.1 (WinBuild.160101.0800)

Modules

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

6212

\??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1

C:\Windows\System32\conhost.exe

—

powershell.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Console Window Host

Exit code:

Version:

10.0.19041.1 (WinBuild.160101.0800)

Modules

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

6316

powershell.exe -command "get-wmiobject win32_computersystem | select-object -expandproperty domain"

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

—

rundll32.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Windows PowerShell

Exit code:

Version:

10.0.19041.1 (WinBuild.160101.0800)

Modules

Images
c:\windows\system32\windowspowershell\v1.0\powershell.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\oleaut32.dll
c:\windows\system32\msvcp_win.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\combase.dll
c:\windows\system32\rpcrt4.dll

6440

"C:\Windows\System32\rundll32.exe" C:\Users\admin\AppData\Local\Temp\CX64Proxy.dll, Test

C:\Windows\System32\rundll32.exe

explorer.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Windows host process (Rundll32)

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

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Total events

9 870

Read events

9 870

Write events

Delete events

Modification events

No data

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Executable files

Suspicious files

Text files

Unknown types

Dropped files

PID	Process	Filename		Type
6316	powershell.exe	C:\Users\admin\AppData\Local\Temp\__PSScriptPolicyTest_xrd3vign.qs3.ps1		text
		MD5:D17FE0A3F47BE24A6453E9EF58C94641	SHA256:96AD1146EB96877EAB5942AE0736B82D8B5E2039A80D3D6932665C1A4C87DCF7
2228	powershell.exe	C:\Users\admin\AppData\Local\Temp\__PSScriptPolicyTest_205rzrio.s43.ps1		text
		MD5:D17FE0A3F47BE24A6453E9EF58C94641	SHA256:96AD1146EB96877EAB5942AE0736B82D8B5E2039A80D3D6932665C1A4C87DCF7
6316	powershell.exe	C:\Users\admin\AppData\Local\Temp\__PSScriptPolicyTest_qbk5ottj.tfl.psm1		text
		MD5:D17FE0A3F47BE24A6453E9EF58C94641	SHA256:96AD1146EB96877EAB5942AE0736B82D8B5E2039A80D3D6932665C1A4C87DCF7
2228	powershell.exe	C:\Users\admin\AppData\Local\Temp\__PSScriptPolicyTest_5r1ypm3d.0yp.psm1		text
		MD5:D17FE0A3F47BE24A6453E9EF58C94641	SHA256:96AD1146EB96877EAB5942AE0736B82D8B5E2039A80D3D6932665C1A4C87DCF7
6316	powershell.exe	C:\Users\admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive		binary
		MD5:89ED96D052F62DC4EFA764366A5CCCBA	SHA256:1B464D70482E4853B6484ADBB64B5095974DD5BF35DE9C110EF9AE358DC93CEC

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
5336	SearchApp.exe	GET	200	192.229.221.95:80	http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTrjrydRyt%2BApF3GSPypfHBxR5XtQQUs9tIpPmhxdiuNkHMEWNpYim8S8YCEAI5PUjXAkJafLQcAAsO18o%3D	unknown	—	—	whitelisted
4316	svchost.exe	GET	200	192.229.221.95:80	http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D	unknown	—	—	whitelisted
4316	svchost.exe	GET	200	192.229.221.95:80	http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D	unknown	—	—	whitelisted
6760	backgroundTaskHost.exe	GET	200	192.229.221.95:80	http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQ50otx%2Fh0Ztl%2Bz8SiPI7wEWVxDlQQUTiJUIBiV5uNu5g%2F6%2BrkS7QYXjzkCEAn5bsKVVV8kdJ6vHl3O1J0%3D	unknown	—	—	whitelisted
6800	backgroundTaskHost.exe	GET	200	192.229.221.95:80	http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQ50otx%2Fh0Ztl%2Bz8SiPI7wEWVxDlQQUTiJUIBiV5uNu5g%2F6%2BrkS7QYXjzkCEAn5bsKVVV8kdJ6vHl3O1J0%3D	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	192.168.100.255:138	—	—	—	whitelisted
3508	svchost.exe	51.104.136.2:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	IE	whitelisted
3888	svchost.exe	239.255.255.250:1900	—	—	—	whitelisted
1184	RUXIMICS.exe	51.104.136.2:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	IE	whitelisted
2120	MoUsoCoreWorker.exe	51.104.136.2:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	IE	whitelisted
4	System	192.168.100.255:137	—	—	—	whitelisted
3508	svchost.exe	4.231.128.59:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	IE	whitelisted
5336	SearchApp.exe	2.23.209.182:443	www.bing.com	Akamai International B.V.	GB	unknown
5336	SearchApp.exe	192.229.221.95:80	ocsp.digicert.com	EDGECAST	US	whitelisted
4316	svchost.exe	20.190.159.73:443	login.live.com	MICROSOFT-CORP-MSN-AS-BLOCK	IE	whitelisted

DNS requests

Domain	IP	Reputation
settings-win.data.microsoft.com	51.104.136.2 4.231.128.59	whitelisted
google.com	216.58.206.78	whitelisted
www.bing.com	2.23.209.182 2.23.209.133 2.23.209.130	whitelisted
ocsp.digicert.com	192.229.221.95	whitelisted
login.live.com	20.190.159.73 20.190.159.71 20.190.159.75 40.126.31.73 20.190.159.23 40.126.31.69 40.126.31.71 20.190.159.64	whitelisted
client.wns.windows.com	40.113.103.199	whitelisted
th.bing.com	2.23.209.133 2.23.209.182 2.23.209.187 2.23.209.130	whitelisted
fd.api.iris.microsoft.com	20.223.35.26	whitelisted
arc.msn.com	20.103.156.88	whitelisted
slscr.update.microsoft.com	40.127.169.103	whitelisted

Threats

PID	Process	Class	Message
—	—	Device Retrieving External IP Address Detected	ET POLICY External IP Lookup Domain (myip .opendns .com in DNS lookup)
—	—	Device Retrieving External IP Address Detected	ET POLICY External IP Lookup Domain (myip .opendns .com in DNS lookup)

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No debug info

General Info

CX64Proxy.dll

A0E57C722DBDFBCA6B442D781451CE79

F9C8E0B2029243ADF9574ADD54F3FF81A21E8DBE

048660468E44DBDDB5631F288A19060AC41CB82DAF2802DE46713DD8ED372B71

98304:tGqLwtt9Cs1Bs1wGqLwtt9Cs1Bs14OqZVcTMOK3Ht6qPt5NwW9BPC/W3g1XdqINj:oUTjw2

Software environment set and analysis options

Launch configuration

Software preset

Hotfixes

Behavior activities

MALICIOUS

Drops the executable file immediately after the start

SUSPICIOUS

Uses NSLOOKUP.EXE to check DNS info

Starts POWERSHELL.EXE for commands execution

Checks for external IP

INFO

UPX packer has been detected

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