Malware analysis test_theme[1].theme Malicious activity

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File name:	test_theme[1].theme
Full analysis:	https://app.any.run/tasks/d1caaa62-82ee-49aa-8bce-8b120c85612f
Verdict:	Malicious activity
Analysis date:	September 16, 2024, 16:28:52
OS:	Windows 10 Professional (build: 19045, 64 bit)
Tags:	smb
MIME:	text/plain
File info:	Unicode text, UTF-8 text
MD5:	53B9081226612CC924AB4D5BC178A11B
SHA1:	FA55186B64B764F080FBC2574A747C3A7C2D453B
SHA256:	BBE82603FC304FFEC485BDA991C84A23E7F11B6DA4A5D49777AB637FF34A1A31
SSDEEP:	12:YcZ+BFbRSfCh5PRtvMnL3kcveG+3oEmhhB+mn/oNK8V:Yg+DVSfYpGnL3VY3oTvB+mn/qV

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
- Attempt to connect to SMB server
  - System (PID: 4)
SUSPICIOUS
- Potential Corporate Privacy Violation
  - System (PID: 4)
INFO
- Creates files or folders in the user directory
  - rundll32.exe (PID: 2080)

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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No data.

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All screenshots are available in the full report

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Total processes

131

Monitored processes

Malicious processes

Suspicious processes

Behavior graph

Click at the process to see the details

Process information

PID

CMD

Path

Indicators

Parent process

System

[System Process]

User:

SYSTEM

Integrity Level:

SYSTEM

2080

"C:\WINDOWS\system32\rundll32.exe" C:\WINDOWS\system32\themecpl.dll,OpenThemeAction C:\Users\admin\AppData\Local\Temp\test_theme[1].theme

C:\Windows\System32\rundll32.exe

—

explorer.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

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Total events

472

Read events

439

Write events

Delete events

Modification events


(PID) Process:	(2080) rundll32.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Themes
Operation:	write	Name:	CurrentTheme
Value: C:\Users\admin\AppData\Local\Microsoft\Windows\Themes\Custom.theme
(PID) Process:	(2080) rundll32.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Themes\HighContrast
Operation:	write	Name:	Pre-High Contrast Scheme
Value: C:\Users\admin\AppData\Local\Microsoft\Windows\Themes\Custom.theme
(PID) Process:	(2080) rundll32.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Themes
Operation:	write	Name:	CurrentTheme
Value: C:\Users\admin\AppData\Local\Microsoft\Windows\Themes\test_theme[1].theme
(PID) Process:	(2080) rundll32.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Themes\HighContrast
Operation:	write	Name:	Pre-High Contrast Scheme
Value: C:\Users\admin\AppData\Local\Microsoft\Windows\Themes\test_theme[1].theme
(PID) Process:	(2080) rundll32.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Accent
Operation:	write	Name:	AccentPalette
Value: 6B6B6BFF595959FF4C4C4CFF3F3F3FFF333333FF262626FF141414FF88179800
(PID) Process:	(2080) rundll32.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Themes\History
Operation:	write	Name:	AutoColor
Value: 0
(PID) Process:	(2080) rundll32.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Themes\History\Colors
Operation:	write	Name:	ColorHistory0
Value:
(PID) Process:	(2080) rundll32.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Themes\History\Colors
Operation:	write	Name:	ColorHistory1
Value: 12826368
(PID) Process:	(2080) rundll32.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Themes\History\Colors
Operation:	write	Name:	ColorHistory2
Value: 4737612
(PID) Process:	(2080) rundll32.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Themes\History\Colors
Operation:	write	Name:	ColorHistory3
Value: 2298344

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Executable files

Suspicious files

Text files

Unknown types

Dropped files

PID	Process	Filename		Type
2080	rundll32.exe	C:\Users\admin\AppData\Local\Microsoft\Windows\Themes\test_theme[1].theme		text
		MD5:53B9081226612CC924AB4D5BC178A11B	SHA256:BBE82603FC304FFEC485BDA991C84A23E7F11B6DA4A5D49777AB637FF34A1A31
2080	rundll32.exe	C:\Users\admin\AppData\Local\Microsoft\Windows\Themes\Custom.theme		text
		MD5:1348E4E8FC451E8021F935F4B1376C95	SHA256:CDF0440A375C4D4A180A358EA3C87448482622FBC71833BC797EC1410E54BB01

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
1028	SystemSettings.exe	GET	200	192.229.221.95:80	http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTrjrydRyt%2BApF3GSPypfHBxR5XtQQUs9tIpPmhxdiuNkHMEWNpYim8S8YCEAI5PUjXAkJafLQcAAsO18o%3D	unknown	—	—	whitelisted
1028	SystemSettings.exe	GET	200	192.229.221.95:80	http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQ50otx%2Fh0Ztl%2Bz8SiPI7wEWVxDlQQUTiJUIBiV5uNu5g%2F6%2BrkS7QYXjzkCEAUZZSZEml49Gjh0j13P68w%3D	unknown	—	—	whitelisted
1744	svchost.exe	GET	200	192.229.221.95:80	http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D	unknown	—	—	whitelisted
1356	svchost.exe	GET	200	23.218.209.163:80	http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl	unknown	—	—	whitelisted
3908	SIHClient.exe	GET	200	88.221.169.152:80	http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.crl	unknown	—	—	whitelisted
3908	SIHClient.exe	GET	200	88.221.169.152:80	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
6424	RUXIMICS.exe	40.127.240.158:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	IE	whitelisted
4	System	192.168.100.255:138	—	—	—	whitelisted
2120	MoUsoCoreWorker.exe	40.127.240.158:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	IE	whitelisted
1356	svchost.exe	40.127.240.158:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	IE	whitelisted
4	System	35.177.186.252:445	serve.files.delivrto.me	AMAZON-02	GB	suspicious
3260	svchost.exe	40.113.103.199:443	client.wns.windows.com	MICROSOFT-CORP-MSN-AS-BLOCK	NL	whitelisted
1028	SystemSettings.exe	104.126.37.146:443	www.bing.com	Akamai International B.V.	DE	whitelisted
1028	SystemSettings.exe	104.64.113.235:443	cxcs.microsoft.net	AKAMAI-AS	CZ	whitelisted
1028	SystemSettings.exe	192.229.221.95:80	ocsp.digicert.com	EDGECAST	US	whitelisted
1744	svchost.exe	20.190.159.0:443	login.live.com	MICROSOFT-CORP-MSN-AS-BLOCK	IE	whitelisted

DNS requests

Domain	IP	Reputation
google.com	172.217.18.14	whitelisted
serve.files.delivrto.me	35.177.186.252	unknown
client.wns.windows.com	40.113.103.199	whitelisted
cxcs.microsoft.net	104.64.113.235	whitelisted
www.bing.com	104.126.37.146 104.126.37.153 104.126.37.186 104.126.37.155 104.126.37.123 104.126.37.128 104.126.37.130 104.126.37.131 104.126.37.139	whitelisted
ocsp.digicert.com	192.229.221.95	whitelisted
login.live.com	20.190.159.0 40.126.31.69 20.190.159.23 20.190.159.2 40.126.31.71 20.190.159.73 40.126.31.67 20.190.159.71	whitelisted
settings-win.data.microsoft.com	40.127.240.158 4.231.128.59	whitelisted
www.microsoft.com	23.218.209.163 88.221.169.152	whitelisted
slscr.update.microsoft.com	20.114.59.183	whitelisted

Threats

PID	Process	Class	Message
—	—	Potential Corporate Privacy Violation	POLICY [ANY.RUN] Attempt to connect to an external SMB server
—	—	Potential Corporate Privacy Violation	POLICY [ANY.RUN] Attempt to connect to an external SMB server
—	—	Potential Corporate Privacy Violation	POLICY [ANY.RUN] NTLM Over SMB (NTLMSSP_NEGOTIATE)
—	—	Potential Corporate Privacy Violation	POLICY [ANY.RUN] NTLM Over SMB (NTLMSSP_NEGOTIATE)
—	—	Potential Corporate Privacy Violation	POLICY [ANY.RUN] Possible NTLM Hash leak over SMB (NTLMSSP_AUTH)
—	—	Potential Corporate Privacy Violation	POLICY [ANY.RUN] Attempt to connect to an external SMB server
—	—	Potential Corporate Privacy Violation	POLICY [ANY.RUN] Attempt to connect to an external SMB server
—	—	Potential Corporate Privacy Violation	POLICY [ANY.RUN] Attempt to connect to an external SMB server
—	—	Potential Corporate Privacy Violation	POLICY [ANY.RUN] Attempt to connect to an external SMB server
—	—	Potential Corporate Privacy Violation	POLICY [ANY.RUN] Attempt to connect to an external SMB server

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No debug info

General Info

test_theme[1].theme

53B9081226612CC924AB4D5BC178A11B

FA55186B64B764F080FBC2574A747C3A7C2D453B

BBE82603FC304FFEC485BDA991C84A23E7F11B6DA4A5D49777AB637FF34A1A31

12:YcZ+BFbRSfCh5PRtvMnL3kcveG+3oEmhhB+mn/oNK8V:Yg+DVSfYpGnL3VY3oTvB+mn/qV

Software environment set and analysis options

Launch configuration

Software preset

Hotfixes

Behavior activities

MALICIOUS

Attempt to connect to SMB server

SUSPICIOUS

Potential Corporate Privacy Violation

INFO

Creates files or folders in the user directory

Malware configuration

Static information

Video and screenshots

Processes

Behavior graph

Specs description

Process information

Information

Information

Modules

Registry activity

Modification events

Files activity

Dropped files

Network activity

HTTP requests

Connections

DNS requests

Threats

Debug output strings