Malware analysis PCOptimizerProInstaller.exe Malicious activity

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File name:	PCOptimizerProInstaller.exe
Full analysis:	https://app.any.run/tasks/0e064131-5316-4d29-83bf-09179546f926
Verdict:	Malicious activity
Analysis date:	December 27, 2024, 07:38:43
OS:	Windows 10 Professional (build: 19045, 64 bit)
Indicators:
MIME:	application/vnd.microsoft.portable-executable
File info:	PE32 executable (GUI) Intel 80386, for MS Windows, Nullsoft Installer self-extracting archive, 5 sections
MD5:	A50C74202E2F4D938BABF556B9F54725
SHA1:	6810DB1606CAC6AB19EDBAA49620BA197EF7BC64
SHA256:	937CCAD21C0271169104539269B5F3FAA43D6CA2E36D676FBF9B6FA6DF41B40A
SSDEEP:	49152:ow3E/lpFJpOhj8ZJvL/QAwN1h1zjZblxwr2UGlm3qnzvSZsrKCB4TlwuwHNBb2j:paa4Zpc7h15bDwvGA6zvSZse7TSoj

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:
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
- Registers / Runs the DLL via REGSVR32.EXE
  - PCOptimizerProInstaller.exe (PID: 6524)
SUSPICIOUS
- Executable content was dropped or overwritten
  - PCOptimizerProInstaller.exe (PID: 6524)
- The process creates files with name similar to system file names
  - PCOptimizerProInstaller.exe (PID: 6524)
- Creates a software uninstall entry
  - PCOptimizerProInstaller.exe (PID: 6524)
- Reads security settings of Internet Explorer
  - PCOptimizerProStartApps.exe (PID: 7008)
  - PCOptimizerPro.exe (PID: 7144)
- Checks Windows Trust Settings
  - PCOptimizerPro.exe (PID: 7144)
- Malware-specific behavior (creating "System.dll" in Temp)
  - PCOptimizerProInstaller.exe (PID: 6524)
INFO
- The sample compiled with english language support
  - PCOptimizerProInstaller.exe (PID: 6524)
- Checks supported languages
  - PCOptimizerProInstaller.exe (PID: 6524)
  - PCOptimizerProStartApps.exe (PID: 7008)
  - PCOptimizerPro.exe (PID: 7144)
- Reads the computer name
  - PCOptimizerPro.exe (PID: 7144)
  - PCOptimizerProInstaller.exe (PID: 6524)
- Reads CPU info
  - PCOptimizerPro.exe (PID: 7144)
- Creates files in the program directory
  - PCOptimizerProInstaller.exe (PID: 6524)
  - PCOptimizerPro.exe (PID: 7144)
- The process uses the downloaded file
  - PCOptimizerProStartApps.exe (PID: 7008)
- Process checks computer location settings
  - PCOptimizerProStartApps.exe (PID: 7008)
- Checks proxy server information
  - PCOptimizerPro.exe (PID: 7144)
- Reads the software policy settings
  - PCOptimizerPro.exe (PID: 7144)
- Sends debugging messages
  - regsvr32.exe (PID: 6960)
- Reads the machine GUID from the registry
  - PCOptimizerPro.exe (PID: 7144)
- Create files in a temporary directory
  - PCOptimizerPro.exe (PID: 7144)
  - PCOptimizerProInstaller.exe (PID: 6524)

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	\|	Win32 Executable MS Visual C++ (generic) (42.2)
.exe	\|	Win64 Executable (generic) (37.3)
.dll	\|	Win32 Dynamic Link Library (generic) (8.8)
.exe	\|	Win32 Executable (generic) (6)
.exe	\|	Generic Win/DOS Executable (2.7)

EXIF

EXE

MachineType:	Intel 386 or later, and compatibles
TimeStamp:	2019:12:16 00:50:56+00:00
ImageFileCharacteristics:	No relocs, Executable, No line numbers, No symbols, 32-bit
PEType:	PE32
LinkerVersion:	6
CodeSize:	25600
InitializedDataSize:	162816
UninitializedDataSize:	1024
EntryPoint:	0x326b
OSVersion:	4
ImageVersion:	6
SubsystemVersion:	4
Subsystem:	Windows GUI
FileVersionNumber:	8.1.1.6
ProductVersionNumber:	8.1.1.6
FileFlagsMask:	0x0000
FileFlags:	(none)
FileOS:	Win32
ObjectFileType:	Executable application
FileSubtype:	-
LanguageCode:	Spanish (Castilian)
CharacterSet:	Windows, Latin1
Comments:	PC Optimizer Pro Nothing optimize your PC better for more details visit http://www.pcoptmizerpro.com
CompanyName:	Xportsoft.com
FileDescription:	PC Optimizer Pro
FileVersion:	8.1.1.6
InternalName:	PC Optimizer Pro Nothing optimize your PC better
LegalCopyright:	(c) Xportsoft Technologies. All rights reserved.
LegalTrademarks:	Xportsoft Technoliges Pvt. Ltd.
OriginalFileName:	PC Optimizer Pro
ProductName:	PC Optimizer Pro
ProductVersion:	8.1.1.6

No data.

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All screenshots are available in the full report

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Total processes

128

Monitored processes

Malicious processes

Suspicious processes

Behavior graph

Click at the process to see the details

Process information

PID

CMD

Path

Indicators

Parent process

6320

"C:\Users\admin\AppData\Local\Temp\PCOptimizerProInstaller.exe"

C:\Users\admin\AppData\Local\Temp\PCOptimizerProInstaller.exe

—

explorer.exe

User:

admin

Company:

Xportsoft.com

Integrity Level:

MEDIUM

Description:

PC Optimizer Pro

Exit code:

3221226540

Version:

8.1.1.6

Modules

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

6524

"C:\Users\admin\AppData\Local\Temp\PCOptimizerProInstaller.exe"

C:\Users\admin\AppData\Local\Temp\PCOptimizerProInstaller.exe

explorer.exe

User:

admin

Company:

Xportsoft.com

Integrity Level:

HIGH

Description:

PC Optimizer Pro

Exit code:

Version:

8.1.1.6

Modules

Images
c:\users\admin\appdata\local\temp\pcoptimizerproinstaller.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\user32.dll

6960

regsvr32.exe /s "C:\Program Files\PC Optimizer Pro\PCOptProCtxMenu.dll"

C:\Windows\SysWOW64\regsvr32.exe

PCOptimizerProInstaller.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

HIGH

Description:

Microsoft(C) Register Server

Exit code:

Version:

10.0.19041.1 (WinBuild.160101.0800)

Modules

Images
c:\windows\syswow64\regsvr32.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

7008

"C:\Program Files\PC Optimizer Pro\PCOPtimizerproStartApps.exe" "C:\Program Files\PC Optimizer Pro\PCOptimizerPro.exe"

C:\Program Files\PC Optimizer Pro\PCOptimizerProStartApps.exe

—

PCOptimizerProInstaller.exe

User:

admin

Company:

Xportsoft Technologies

Integrity Level:

HIGH

Description:

Starting up the applicaiton

Exit code:

Version:

1.0.0.9

Modules

Images
c:\program files\pc optimizer pro\pcoptimizerprostartapps.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\user32.dll

7144

"C:\Program Files\PC Optimizer Pro\PCOptimizerPro.exe"

C:\Program Files\PC Optimizer Pro\PCOptimizerPro.exe

PCOptimizerProStartApps.exe

User:

admin

Company:

Xportsoft Technologies

Integrity Level:

HIGH

Description:

Nothing optimize your PC better

Version:

8, 1, 1, 6

Modules

Images
c:\program files\pc optimizer pro\pcoptimizerpro.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\user32.dll

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Total events

1 347

Read events

1 316

Write events

Delete events

Modification events


(PID) Process:	(6960) regsvr32.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{203ABD21-41F1-4F1B-BAE3-D6A89A90D239}\InprocServer32
Operation:	write	Name:	ThreadingModel
Value: Apartment
(PID) Process:	(6960) regsvr32.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{203ABD21-41F1-4F1B-BAE3-D6A89A90D239}\InprocServer32
Operation:	delete key	Name:	(default)
Value:
(PID) Process:	(6960) regsvr32.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{203ABD21-41F1-4F1B-BAE3-D6A89A90D239}
Operation:	delete key	Name:	(default)
Value:
(PID) Process:	(6960) regsvr32.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\Classes\*\shellex\ContextMenuHandlers\PCProCtxMenu
Operation:	delete key	Name:	(default)
Value:
(PID) Process:	(6960) regsvr32.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\Classes\lnkfile\shellex\ContextMenuHandlers\PCProCtxMenu
Operation:	delete key	Name:	(default)
Value:
(PID) Process:	(6960) regsvr32.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{12AB121E-44C6-488B-8773-B0AE25E662E1}\TypeLib
Operation:	write	Name:	Version
Value: 1.0
(PID) Process:	(6960) regsvr32.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{12AB121E-44C6-488B-8773-B0AE25E662E1}\TypeLib
Operation:	write	Name:	Version
Value: 1.0
(PID) Process:	(6524) PCOptimizerProInstaller.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\PC Optimizer Pro
Operation:	write	Name:	DisplayName
Value: PC Optimizer Pro
(PID) Process:	(6524) PCOptimizerProInstaller.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\PC Optimizer Pro
Operation:	write	Name:	UninstallString
Value: C:\Program Files\PC Optimizer Pro\uninst.exe
(PID) Process:	(6524) PCOptimizerProInstaller.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\PC Optimizer Pro
Operation:	write	Name:	DisplayIcon
Value: C:\Program Files\PC Optimizer Pro\PCOptimizerPro.exe

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Executable files

Suspicious files

Text files

Unknown types

Dropped files

PID	Process	Filename		Type
6524	PCOptimizerProInstaller.exe	C:\Users\admin\AppData\Local\Temp\nsr5BD0.tmp\LangDLL.dll		executable
		MD5:DE3558CE305E32F742FF25B697407FEC	SHA256:98160B4EBB4870F64B13A45F5384B693614AE5CA1B5243EDF461CA0B5A6D479A
6524	PCOptimizerProInstaller.exe	C:\Users\admin\AppData\Local\Temp\nsr5BD0.tmp\modern-header.bmp		image
		MD5:2E9AD88F5A52C0CBDBE3D4FD93DCF6CC	SHA256:D31D0DA901EDA4A56BC1AA899F69BA90CC2B8338AE382CEFA088DDFDBCA41A58
6524	PCOptimizerProInstaller.exe	C:\Users\admin\AppData\Local\Temp\nsr5BD0.tmp\nsDialogs.dll		executable
		MD5:AB101F38562C8545A641E95172C354B4	SHA256:3CDF3E24C87666ED5C582B8B028C01EE6AC16D5A9B8D8D684AE67605376786EA
6524	PCOptimizerProInstaller.exe	C:\Users\admin\AppData\Local\Temp\nsr5BD0.tmp\System.dll		executable
		MD5:FBE295E5A1ACFBD0A6271898F885FE6A	SHA256:A1390A78533C47E55CC364E97AF431117126D04A7FAED49390210EA3E89DD0E1
6524	PCOptimizerProInstaller.exe	C:\Program Files\PC Optimizer Pro\PCOptimizerProStartApps.exe		executable
		MD5:FEF32B3E500338788F90A80DF1CE328B	SHA256:877E4CE4230C68504DBA02BE9EA2A17D5FF52FC08E1E25A386F1E49BAF2373B8
6524	PCOptimizerProInstaller.exe	C:\Program Files\PC Optimizer Pro\PCOptimizerProTrays.exe		executable
		MD5:1AE41A873E8D0C6E4A37C6FB366AC235	SHA256:3287724F1F2E5AF5004082C0B7DC8ADE2B20CC86BA4044A81B5C4942C5634644
6524	PCOptimizerProInstaller.exe	C:\Users\admin\AppData\Local\Temp\nsr5BD0.tmp\GetVersion.dll		executable
		MD5:DC9562578490DF8BC464071F125BFC19	SHA256:0351FE33A6EB13417437C1BAAEE248442FB1ECC2C65940C9996BCDA574677C3F
6524	PCOptimizerProInstaller.exe	C:\Program Files\PC Optimizer Pro\PCOptimizerPro.exe		executable
		MD5:E3EAF30B68A0D5D7ECC66EE20245DA04	SHA256:81AC2BF8338D5068BF224A058B9DA8F45CF7CD19F76EAD74DC356A1CAB305DC4
6524	PCOptimizerProInstaller.exe	C:\Program Files\PC Optimizer Pro\Languages\EN.xml		xml
		MD5:78FF55F081E2266EDB914AA426FB521B	SHA256:4CC17D1D813574363E030EDF6A09D398916C4C3BD2B7F5E25DD7FFD94D3B0018
6524	PCOptimizerProInstaller.exe	C:\Program Files\PC Optimizer Pro\Languages\DE.xml		xml
		MD5:1EBD8CC9732943E9D794CCDB80BFEE75	SHA256:642906467DA21E57419ADF9597477DC4A8E14221274AD286F6497CF34AB2B0CE

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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	2.16.164.49:80	http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl	unknown	—	—	whitelisted
—	—	GET	200	95.101.149.131:80	http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl	unknown	—	—	whitelisted
—	—	GET	200	95.101.149.131:80	http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl	unknown	—	—	whitelisted
—	—	GET	200	95.101.149.131:80	http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl	unknown	—	—	whitelisted
—	—	GET	200	2.16.164.49:80	http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl	unknown	—	—	whitelisted
7144	PCOptimizerPro.exe	GET	200	104.18.38.233:80	http://ocsp.comodoca.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBRTtU9uFqgVGHhJwXZyWCNXmVR5ngQUoBEKIz6W8Qfs4q8p74Klf9AwpLQCEDlyRDr5IrdR19NsEN0xNZU%3D	unknown	—	—	whitelisted
1176	svchost.exe	GET	200	192.229.221.95:80	http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D	unknown	—	—	whitelisted
—	—	GET	200	192.229.221.95:80	http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTrjrydRyt%2BApF3GSPypfHBxR5XtQQUs9tIpPmhxdiuNkHMEWNpYim8S8YCEAI5PUjXAkJafLQcAAsO18o%3D	unknown	—	—	whitelisted
7144	PCOptimizerPro.exe	GET	200	172.64.149.23:80	http://ocsp.usertrust.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTNMNJMNDqCqx8FcBWK16EHdimS6QQUU3m%2FWqorSs9UgOHYm8Cd8rIDZssCEGxVq9vQB5LHnQcM2BGe1r8%3D	unknown	—	—	whitelisted
7144	PCOptimizerPro.exe	GET	301	50.63.8.124:80	http://www.pcoptimizerpro.com/admin/isrenewed.aspx?bitver=32&h=&uq=525400A80C84&uq1=18F7786F96EE&uq2=000000000000&tid=GLF&tidsub=1	unknown	—	—	whitelisted

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Connections

PID	Process	IP	Domain	ASN	CN	Reputation
—	—	192.168.100.255:137	—	—	—	whitelisted
—	—	4.231.128.59:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	IE	whitelisted
—	—	2.16.164.49:80	crl.microsoft.com	Akamai International B.V.	NL	whitelisted
—	—	95.101.149.131:80	www.microsoft.com	Akamai International B.V.	NL	whitelisted
4	System	192.168.100.255:138	—	—	—	whitelisted
5064	SearchApp.exe	2.23.209.177:443	www.bing.com	Akamai International B.V.	GB	whitelisted
—	—	192.229.221.95:80	ocsp.digicert.com	EDGECAST	US	whitelisted
1176	svchost.exe	40.126.31.67:443	login.live.com	MICROSOFT-CORP-MSN-AS-BLOCK	IE	whitelisted
1176	svchost.exe	192.229.221.95:80	ocsp.digicert.com	EDGECAST	US	whitelisted
1076	svchost.exe	184.28.89.167:443	go.microsoft.com	AKAMAI-AS	US	whitelisted

DNS requests

Domain	IP	Reputation
crl.microsoft.com	2.16.164.49 2.16.164.120	whitelisted
www.microsoft.com	95.101.149.131	whitelisted
google.com	216.58.206.46	whitelisted
www.bing.com	2.23.209.177 2.23.209.179 2.23.209.150 2.23.209.182 2.23.209.133 2.23.209.176 2.23.209.140 2.23.209.161 2.23.209.149	whitelisted
ocsp.digicert.com	192.229.221.95	whitelisted
login.live.com	40.126.31.67 20.190.159.75 20.190.159.73 20.190.159.4 20.190.159.68 40.126.31.69 20.190.159.64 40.126.31.71	whitelisted
go.microsoft.com	184.28.89.167	whitelisted
settings-win.data.microsoft.com	4.231.128.59	whitelisted
www.pcoptimizerpro.com	50.63.8.124	malicious
ocsp.comodoca.com	104.18.38.233 172.64.149.23	whitelisted

Threats

PID	Process	Class	Message
7144	PCOptimizerPro.exe	A Network Trojan was detected	ET USER_AGENTS Suspicious User Agent (Microsoft Internet Explorer)
7144	PCOptimizerPro.exe	Misc activity	ET INFO Observed ZeroSSL SSL/TLS Certificate
7144	PCOptimizerPro.exe	A Network Trojan was detected	ET USER_AGENTS Suspicious User Agent (Microsoft Internet Explorer)

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Process	Message
regsvr32.exe	HKCR { NoRemove CLSID { ForceRemove {203ABD21-41F1-4F1B-BAE3-D6A89A90D239} = s 'PCProCtxMenu Class' { InprocServer32 = s 'C:\Program Files\PC Optimizer Pro\PCOptProCtxMenu.dll' { val ThreadingModel = s 'Apartment' } } } NoRemove * { NoRemove ShellEx { NoRemove ContextMenuHandlers { ForceRemove PCProCtxMenu = s '{203ABD21-41F1-4F1B-BAE3-D6A89A90D239}' } } } NoRemove lnkfile { NoRemove ShellEx { NoRemove ContextMenuHandlers { ForceRemove PCProCtxMenu = s '{203ABD21-41F1-4F1B-BAE3-D6A89A90D239}' } } } }
regsvr32.exe	HKCR { NoRemove CLSID { ForceRemove {203ABD21-41F1-4F1B-BAE3-D6A89A90D239} = s 'PCProCtxMenu Class' { InprocServer32 = s 'C:\Program Files\PC Optimizer Pro\PCOptProCtxMenu.dll' { val ThreadingModel = s 'Apartment' } } } NoRemove * { NoRemove ShellEx { NoRemove ContextMenuHandlers { ForceRemove PCProCtxMenu = s '{203ABD21-41F1-4F1B-BAE3-D6A89A90D239}' } } } NoRemove lnkfile { NoRemove ShellEx { NoRemove ContextMenuHandlers { ForceRemove PCProCtxMenu = s '{203ABD21-41F1-4F1B-BAE3-D6A89A90D239}' } } } }

Process

Message

regsvr32.exe

HKCR { NoRemove CLSID { ForceRemove {203ABD21-41F1-4F1B-BAE3-D6A89A90D239} = s 'PCProCtxMenu Class' { InprocServer32 = s 'C:\Program Files\PC Optimizer Pro\PCOptProCtxMenu.dll' { val ThreadingModel = s 'Apartment' } } } NoRemove * { NoRemove ShellEx { NoRemove ContextMenuHandlers { ForceRemove PCProCtxMenu = s '{203ABD21-41F1-4F1B-BAE3-D6A89A90D239}' } } } NoRemove lnkfile { NoRemove ShellEx { NoRemove ContextMenuHandlers { ForceRemove PCProCtxMenu = s '{203ABD21-41F1-4F1B-BAE3-D6A89A90D239}' } } } }

regsvr32.exe

General Info

PCOptimizerProInstaller.exe

A50C74202E2F4D938BABF556B9F54725

6810DB1606CAC6AB19EDBAA49620BA197EF7BC64

937CCAD21C0271169104539269B5F3FAA43D6CA2E36D676FBF9B6FA6DF41B40A

49152:ow3E/lpFJpOhj8ZJvL/QAwN1h1zjZblxwr2UGlm3qnzvSZsrKCB4TlwuwHNBb2j:paa4Zpc7h15bDwvGA6zvSZse7TSoj

Software environment set and analysis options

Launch configuration

Software preset

Hotfixes

Behavior activities

MALICIOUS

Registers / Runs the DLL via REGSVR32.EXE

SUSPICIOUS

Executable content was dropped or overwritten

The process creates files with name similar to system file names

Creates a software uninstall entry

Reads security settings of Internet Explorer

Checks Windows Trust Settings

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

INFO

The sample compiled with english language support

Checks supported languages

Reads the computer name

Reads CPU info

Creates files in the program directory

The process uses the downloaded file

Process checks computer location settings

Checks proxy server information

Reads the software policy settings

Sends debugging messages

Reads the machine GUID from the registry

Create files in a temporary directory

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

Registry activity

Modification events

Files activity

Dropped files

Network activity

HTTP requests

Connections

DNS requests

Threats

Debug output strings