Malware analysis cve-2025-21298-poc.rtf Malicious activity

Add for printing

File name:	cve-2025-21298-poc.rtf
Full analysis:	https://app.any.run/tasks/8c7824aa-3af9-4998-bf46-4306fce5f61e
Verdict:	Malicious activity
Analysis date:	February 04, 2025, 13:11:48
OS:	Windows 10 Professional (build: 19045, 64 bit)
Tags:	ole-embedded
Indicators:
MIME:	text/rtf
File info:	Rich Text Format data, version 1
MD5:	9D68678AEEE52684BBE3C983222B1DA3
SHA1:	BA3AE643E20A26ACA550B6888D9107E5D434959C
SHA256:	93EF57B81021BE174E33B5B48C1AED525D2785C3607AEB540508BB3713690179
SSDEEP:	3:gOVAGaI6vUvuvX+xReRQGJ/ecPBEmrd3V8CLRBgTfVdVDVfVdVwFt3dXVBYv:9AFQfxR4F/jExCL40Yv

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

Add for printing

MALICIOUS
- Unusual execution from MS Office
  - WINWORD.EXE (PID: 6632)
SUSPICIOUS
No suspicious indicators.
INFO
- Creates files in the program directory
  - DWWIN.EXE (PID: 7096)
- Checks proxy server information
  - DWWIN.EXE (PID: 7096)

Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report

Add for printing

No Malware configuration.

Add for printing

TRiD

.rtf	\|	Rich Text Format (100)

No data.

Add for printing

All screenshots are available in the full report

Add for printing

Total processes

130

Monitored processes

Malicious processes

Suspicious processes

Behavior graph

Click at the process to see the details

Process information

PID

CMD

Path

Indicators

Parent process

6632

"C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n C:\Users\admin\AppData\Local\Temp\cve-2025-21298-poc.rtf /o ""

C:\Program Files\Microsoft Office\root\Office16\WINWORD.EXE

explorer.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Microsoft Word

Exit code:

Version:

16.0.16026.20146

Modules

Images
c:\program files\microsoft office\root\office16\winword.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\apphelp.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

7096

C:\WINDOWS\system32\dwwin.exe -x -s 3640

C:\Windows\System32\DWWIN.EXE

WINWORD.EXE

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Windows Error Reporting

Exit code:

Version:

10.0.19041.1 (WinBuild.160101.0800)

Modules

Images
c:\windows\system32\dwwin.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\shell32.dll
c:\windows\system32\msvcp_win.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\user32.dll
c:\windows\system32\win32u.dll

Add for printing

Total events

7 372

Read events

7 160

Write events

206

Delete events

Modification events


(PID) Process:	(6632) WINWORD.EXE	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\Common\ClientTelemetry\Sampling
Operation:	write	Name:	0
Value: 017012000000001000B24E9A3E02000000000000000600000000000000
(PID) Process:	(6632) WINWORD.EXE	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\Common\CrashPersistence\WINWORD\6632
Operation:	write	Name:	0
Value: 0B0E10703BF23DDD4F5745BBFDC779E6157DF7230046CDEFF6F2E5E0DDED016A04102400449A7D64B29D01008500A907556E6B6E6F776EC906022222CA0DC2190000C91003783634C511E833D2120B770069006E0077006F00720064002E00650078006500C51620C517808004C91808323231322D44656300
(PID) Process:	(6632) WINWORD.EXE	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Common\LanguageResources\EnabledEditingLanguages
Operation:	write	Name:	en-US
Value: 2
(PID) Process:	(6632) WINWORD.EXE	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Common\LanguageResources\EnabledEditingLanguages
Operation:	write	Name:	de-de
Value: 2
(PID) Process:	(6632) WINWORD.EXE	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Common\LanguageResources\EnabledEditingLanguages
Operation:	write	Name:	fr-fr
Value: 2
(PID) Process:	(6632) WINWORD.EXE	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Common\LanguageResources\EnabledEditingLanguages
Operation:	write	Name:	es-es
Value: 2
(PID) Process:	(6632) WINWORD.EXE	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Common\LanguageResources\EnabledEditingLanguages
Operation:	write	Name:	it-it
Value: 2
(PID) Process:	(6632) WINWORD.EXE	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Common\LanguageResources\EnabledEditingLanguages
Operation:	write	Name:	ja-jp
Value: 2
(PID) Process:	(6632) WINWORD.EXE	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Common\LanguageResources\EnabledEditingLanguages
Operation:	write	Name:	ko-kr
Value: 2
(PID) Process:	(6632) WINWORD.EXE	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Common\LanguageResources\EnabledEditingLanguages
Operation:	write	Name:	pt-br
Value: 2

Add for printing

Executable files

Suspicious files

Text files

Unknown types

Dropped files

PID	Process	Filename		Type
7096	DWWIN.EXE	C:\ProgramData\Microsoft\Windows\WER\ReportArchive\AppCrash_WINWORD.EXE_32afa92cd6dc5a41387953d68edafb73db78ecf_00000000_15454511-acac-4bce-a315-82c0197a30b6\Report.wer		—
		MD5:—	SHA256:—
6632	WINWORD.EXE	C:\Users\admin\AppData\Local\Microsoft\Office\16.0\AddInClassifierCache\OfficeSharedEntities.bin		text
		MD5:CC90D669144261B198DEAD45AA266572	SHA256:89C701EEFF939A44F28921FD85365ECD87041935DCD0FE0BAF04957DA12C9899
6632	WINWORD.EXE	C:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\E2C6CBAF0AF08CF203BA74BF0D0AB6D5_363582827213C09529A76F35FB615187		binary
		MD5:32F70F10803A7884D566BB811F9B393B	SHA256:385A5644D71B55D4472875E5D4BF1F8C1627358F8CD7E5675A089A209D3BA06D
7096	DWWIN.EXE	C:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\37C951188967C8EB88D99893D9D191FE		binary
		MD5:FA84E4BCC92AA5DB735AB50711040CDE	SHA256:6D7205E794FDE4219A62D9692ECDDF612663A5CF20399E79BE87B851FCA4CA33
7096	DWWIN.EXE	C:\ProgramData\Microsoft\Windows\WER\Temp\WER740A.tmp.WERInternalMetadata.xml		binary
		MD5:BC7F6A4320F6B638D6CA4AD749F153C6	SHA256:9C3DACB124183C1BAA70A2D39DA1C66D2BE878F9478AA5A03CD0E2F155553DA0
7096	DWWIN.EXE	C:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\21253908F3CB05D51B1C2DA8B681A785		binary
		MD5:680B0331A3CC8FCCE16367586EC7A721	SHA256:19F1B5D2C7F62663C14D97578411DC610E5F33E6CE4165977314442435F15305
7096	DWWIN.EXE	C:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\37C951188967C8EB88D99893D9D191FE		binary
		MD5:B8283C55124B25764DF22B80A6361664	SHA256:ECE647994183408084FB9AAF27EF7FCB8A8C3C5188A28E5A68A64313C3DCEFFF
6632	WINWORD.EXE	C:\Users\admin\AppData\Local\Microsoft\TokenBroker\Cache\56a61aeb75d8f5be186c26607f4bb213abe7c5ec.tbres		binary
		MD5:13CBDF24B9701D4427687C49DA4FD355	SHA256:65F2131FA44C08401634604F50F4C8D75471EF35AE452B8F167D92CF7CDAA591
6632	WINWORD.EXE	C:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\E2C6CBAF0AF08CF203BA74BF0D0AB6D5_363582827213C09529A76F35FB615187		binary
		MD5:6D86CE7826F99A73455DC5EC08D29695	SHA256:2AF66E58E10067CECBD2728497B92943C79926A0891A8F3A980DA0E6A20F7F13
6632	WINWORD.EXE	C:\Users\admin\AppData\Local\Microsoft\Office\16.0\AddInClassifierCache\OfficeSharedEntitiesUpdated.bin		text
		MD5:4A88C6BB0C7068E9238704E8462AF1E5	SHA256:D45BA391B11658337C0C499C4BBB6AB04EE94C721BBFF31970FF0E568F7BDDC3

Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Add for printing

HTTP(S) requests

TCP/UDP connections

DNS requests

Threats

HTTP requests

PID	Process	Method	HTTP Code	IP	URL	CN	Type	Size	Reputation
4712	MoUsoCoreWorker.exe	GET	200	23.35.229.160:80	http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl	unknown	—	—	whitelisted
4712	MoUsoCoreWorker.exe	GET	200	23.48.23.158:80	http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl	unknown	—	—	whitelisted
6632	WINWORD.EXE	GET	200	2.17.190.73:80	http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQ50otx%2Fh0Ztl%2Bz8SiPI7wEWVxDlQQUTiJUIBiV5uNu5g%2F6%2BrkS7QYXjzkCEAUZZSZEml49Gjh0j13P68w%3D	unknown	—	—	whitelisted
—	—	GET	200	2.17.190.73:80	http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTrjrydRyt%2BApF3GSPypfHBxR5XtQQUs9tIpPmhxdiuNkHMEWNpYim8S8YCEAI5PUjXAkJafLQcAAsO18o%3D	unknown	—	—	whitelisted
1176	svchost.exe	GET	200	2.17.190.73:80	http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D	unknown	—	—	whitelisted
7096	DWWIN.EXE	GET	200	23.35.229.160:80	http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl	unknown	—	—	whitelisted
7096	DWWIN.EXE	GET	200	23.48.23.158:80	http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl	unknown	—	—	whitelisted
2428	SIHClient.exe	GET	200	23.35.229.160:80	http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.crl	unknown	—	—	whitelisted
2428	SIHClient.exe	GET	200	23.35.229.160:80	http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.crl	unknown	—	—	whitelisted
6536	backgroundTaskHost.exe	GET	200	2.17.190.73:80	http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQ50otx%2Fh0Ztl%2Bz8SiPI7wEWVxDlQQUTiJUIBiV5uNu5g%2F6%2BrkS7QYXjzkCEAUZZSZEml49Gjh0j13P68w%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	192.168.100.255:137	—	—	—	whitelisted
4712	MoUsoCoreWorker.exe	23.48.23.158:80	crl.microsoft.com	Akamai International B.V.	DE	whitelisted
4712	MoUsoCoreWorker.exe	23.35.229.160:80	www.microsoft.com	AKAMAI-AS	DE	whitelisted
—	—	40.127.240.158:443	—	MICROSOFT-CORP-MSN-AS-BLOCK	IE	unknown
4	System	192.168.100.255:138	—	—	—	whitelisted
5064	SearchApp.exe	92.123.104.12:443	www.bing.com	Akamai International B.V.	DE	whitelisted
—	—	2.17.190.73:80	ocsp.digicert.com	AKAMAI-AS	DE	whitelisted
1076	svchost.exe	23.35.238.131:443	go.microsoft.com	AKAMAI-AS	DE	whitelisted
6632	WINWORD.EXE	52.109.89.18:443	officeclient.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	NL	whitelisted
6632	WINWORD.EXE	52.113.194.132:443	ecs.office.com	MICROSOFT-CORP-MSN-AS-BLOCK	US	whitelisted

DNS requests

Domain	IP	Reputation
crl.microsoft.com	23.48.23.158 23.48.23.193 23.48.23.145 23.48.23.156 23.48.23.159 23.48.23.173 23.48.23.176 23.48.23.177 23.48.23.162	whitelisted
www.microsoft.com	23.35.229.160	whitelisted
google.com	142.250.184.206	whitelisted
www.bing.com	92.123.104.12 92.123.104.20 92.123.104.5 92.123.104.17 92.123.104.10 92.123.104.67 92.123.104.66 92.123.104.21 92.123.104.18	whitelisted
ocsp.digicert.com	2.17.190.73	whitelisted
go.microsoft.com	23.35.238.131	whitelisted
officeclient.microsoft.com	52.109.89.18	whitelisted
ecs.office.com	52.113.194.132	whitelisted
roaming.officeapps.live.com	52.109.76.243	whitelisted
omex.cdn.office.net	2.19.198.51 23.32.238.131 23.32.238.144 23.32.238.107 2.19.198.42 23.32.238.146 2.19.198.58 23.32.238.128 23.32.238.161	whitelisted

Threats

No threats detected

Add for printing

No debug info

General Info

cve-2025-21298-poc.rtf

9D68678AEEE52684BBE3C983222B1DA3

BA3AE643E20A26ACA550B6888D9107E5D434959C

93EF57B81021BE174E33B5B48C1AED525D2785C3607AEB540508BB3713690179

3:gOVAGaI6vUvuvX+xReRQGJ/ecPBEmrd3V8CLRBgTfVdVDVfVdVwFt3dXVBYv:9AFQfxR4F/jExCL40Yv

Software environment set and analysis options

Launch configuration

Software preset

Hotfixes

Behavior activities

MALICIOUS

Unusual execution from MS Office

SUSPICIOUS

INFO

Creates files in the program directory

Checks proxy server information

Malware configuration

Static information

TRiD

Video and screenshots

Processes

Behavior graph

Specs description

Process information

Information

Modules

Information

Modules

Registry activity

Modification events

Files activity

Dropped files

Network activity

HTTP requests

Connections

DNS requests

Threats

Debug output strings