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

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File name:	cve-2025-21298-poc.rtf
Full analysis:	https://app.any.run/tasks/7e8767f0-ab2e-4147-9b83-e0880b4743f9
Verdict:	Malicious activity
Analysis date:	January 30, 2025, 13:42:41
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

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MALICIOUS
- Unusual execution from MS Office
  - WINWORD.EXE (PID: 6608)
SUSPICIOUS
No suspicious indicators.
INFO
- Reads Microsoft Office registry keys
  - DWWIN.EXE (PID: 7064)
- Creates files in the program directory
  - DWWIN.EXE (PID: 7064)
- Checks proxy server information
  - DWWIN.EXE (PID: 7064)
- Reads the software policy settings
  - DWWIN.EXE (PID: 7064)

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

.rtf	\|	Rich Text Format (100)

No data.

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All screenshots are available in the full report

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Total processes

133

Monitored processes

Malicious processes

Suspicious processes

Behavior graph

Click at the process to see the details

Process information

PID

CMD

Path

Indicators

Parent process

6608

"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

7064

C:\WINDOWS\system32\dwwin.exe -x -s 3696

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\wer.dll
c:\windows\system32\version.dll
c:\windows\system32\msvcp_win.dll
c:\windows\system32\rpcrt4.dll

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Total events

7 512

Read events

7 299

Write events

207

Delete events

Modification events


(PID) Process:	(6608) WINWORD.EXE	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Word\Resiliency\StartupItems
Operation:	write	Name:	j5-
Value: 6A352D00D01900000400000000000000973955DB1C73DB018C00000001000000840000003E0043003A005C00550073006500720073005C00610064006D0069006E005C0041007000700044006100740061005C0052006F0061006D0069006E0067005C004D006900630072006F0073006F00660074005C00540065006D0070006C0061007400650073005C004E006F0072006D0061006C002E0064006F0074006D00000000000000
(PID) Process:	(6608) WINWORD.EXE	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\Common\ClientTelemetry\Sampling
Operation:	write	Name:	0
Value: 017012000000001000B24E9A3E02000000000000000600000000000000
(PID) Process:	(6608) WINWORD.EXE	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\Common\CrashPersistence\WINWORD\6608
Operation:	write	Name:	0
Value: 0B0E10769C6A49850D224D8B2EE743EB15189E230046BDB2AAD4CDE3DCED016A04102400449A7D64B29D01008500A907556E6B6E6F776EC906022222CA0DC2190000C91003783634C511D033D2120B770069006E0077006F00720064002E00650078006500C51620C517808004C91808323231322D44656300
(PID) Process:	(6608) WINWORD.EXE	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Common\LanguageResources\EnabledEditingLanguages
Operation:	write	Name:	en-US
Value: 2
(PID) Process:	(6608) WINWORD.EXE	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Common\LanguageResources\EnabledEditingLanguages
Operation:	write	Name:	de-de
Value: 2
(PID) Process:	(6608) WINWORD.EXE	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Common\LanguageResources\EnabledEditingLanguages
Operation:	write	Name:	fr-fr
Value: 2
(PID) Process:	(6608) WINWORD.EXE	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Common\LanguageResources\EnabledEditingLanguages
Operation:	write	Name:	es-es
Value: 2
(PID) Process:	(6608) WINWORD.EXE	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Common\LanguageResources\EnabledEditingLanguages
Operation:	write	Name:	it-it
Value: 2
(PID) Process:	(6608) WINWORD.EXE	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Common\LanguageResources\EnabledEditingLanguages
Operation:	write	Name:	ja-jp
Value: 2
(PID) Process:	(6608) WINWORD.EXE	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Common\LanguageResources\EnabledEditingLanguages
Operation:	write	Name:	ko-kr
Value: 2

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Executable files

Suspicious files

Text files

Unknown types

Dropped files

PID	Process	Filename		Type
7064	DWWIN.EXE	C:\ProgramData\Microsoft\Windows\WER\ReportArchive\AppCrash_WINWORD.EXE_32afa92cd6dc5a41387953d68edafb73db78ecf_00000000_9f19ae6a-ca01-4f50-bdf4-fe632f2e2c3c\Report.wer		—
		MD5:—	SHA256:—
6608	WINWORD.EXE	C:\Users\admin\AppData\Local\Temp\~$e-2025-21298-poc.rtf		binary
		MD5:5186D2F1E1DE5C329394F42B99C4CF68	SHA256:5171976226BE5A079CA9BAF725D7F188AA602899A65979800E0D0F9B8F4F400D
6608	WINWORD.EXE	C:\Users\admin\AppData\Local\Microsoft\Office\16.0\WebServiceCache\AllUsers\officeclient.microsoft.com\65CF2C7D-31BE-4FB0-B406-F2E2EC39D9E3		xml
		MD5:B09393D82ED1F275BC971FCBC800AEA6	SHA256:B1F9059A70DC0D3F9FD9FBA06F2F2787AC9B4229281001A5B0690FB5EFFE82CE
7064	DWWIN.EXE	C:\ProgramData\Microsoft\Windows\WER\Temp\WER6D16.tmp.xml		xml
		MD5:AF60A15F25FDFE69A11DD44A55BEBD86	SHA256:91FB0038481455C4169D2F5E5540E06A1D0DF41FDA1359C669D10ECF48620175
6608	WINWORD.EXE	C:\Users\admin\AppData\Roaming\Microsoft\Templates\~$Normal.dotm		binary
		MD5:9EA8D8D5BFE0077624AE0FC6B3553A26	SHA256:9EAB2EE9833E46189FFE14CFF744301D29CCC3C626B7F5F9D599360D42258F86
7064	DWWIN.EXE	C:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\37C951188967C8EB88D99893D9D191FE		binary
		MD5:794A20A9DF25844CCF43C6C26B53FBA8	SHA256:097694A5F0057F5A6D38D5367977C79EB5004FE41FAFD4CECCD21012F4E9FAFB
6608	WINWORD.EXE	C:\Users\admin\AppData\Local\Microsoft\Office\16.0\AddInClassifierCache\OfficeSharedEntities.bin		text
		MD5:CC90D669144261B198DEAD45AA266572	SHA256:89C701EEFF939A44F28921FD85365ECD87041935DCD0FE0BAF04957DA12C9899
6608	WINWORD.EXE	C:\Users\admin\AppData\Local\Microsoft\Windows\INetCache\Content.Word\~WRS{85B7371B-7CFB-4849-8321-804822F6CA98}.tmp		binary
		MD5:830FBF83999E052538EAF156AB6ECB17	SHA256:D5098A2CEAE815DB29CD53C76F85240C95DC4D2E3FEDDD71D628617064C29869
6608	WINWORD.EXE	C:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\E2C6CBAF0AF08CF203BA74BF0D0AB6D5_363582827213C09529A76F35FB615187		binary
		MD5:1B38590B735FC3EAF0AA3259EE44B1DF	SHA256:BD6C19F51424C74D13EA336D2DC172B67F5050CA08D7C257A97A0364A17A380A
7064	DWWIN.EXE	C:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\21253908F3CB05D51B1C2DA8B681A785		binary
		MD5:37C97E8A946BEC8806CCABB5C536B8F1	SHA256:6048C305D609724610B21BC84658EEBE5F81F884B9A84EEE973427F1AFECE85C

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
—	—	GET	200	2.23.77.188:80	http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTrjrydRyt%2BApF3GSPypfHBxR5XtQQUs9tIpPmhxdiuNkHMEWNpYim8S8YCEAI5PUjXAkJafLQcAAsO18o%3D	unknown	—	—	whitelisted
6608	WINWORD.EXE	GET	200	2.23.77.188:80	http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQ50otx%2Fh0Ztl%2Bz8SiPI7wEWVxDlQQUTiJUIBiV5uNu5g%2F6%2BrkS7QYXjzkCEAUZZSZEml49Gjh0j13P68w%3D	unknown	—	—	whitelisted
7064	DWWIN.EXE	GET	200	2.16.164.24:80	http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl	unknown	—	—	whitelisted
7064	DWWIN.EXE	GET	200	95.101.149.131:80	http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl	unknown	—	—	whitelisted
1176	svchost.exe	GET	200	2.23.77.188:80	http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D	unknown	—	—	whitelisted
3820	SIHClient.exe	GET	200	95.101.149.131:80	http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.crl	unknown	—	—	whitelisted
3820	SIHClient.exe	GET	200	95.101.149.131:80	http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.crl	unknown	—	—	whitelisted
6484	backgroundTaskHost.exe	GET	200	2.23.77.188:80	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
—	—	40.127.240.158:443	—	MICROSOFT-CORP-MSN-AS-BLOCK	IE	unknown
4	System	192.168.100.255:138	—	—	—	whitelisted
5064	SearchApp.exe	2.21.65.132:443	www.bing.com	Akamai International B.V.	NL	whitelisted
—	—	2.23.77.188:80	ocsp.digicert.com	AKAMAI-AS	DE	whitelisted
1076	svchost.exe	2.18.97.227:443	go.microsoft.com	Akamai International B.V.	FR	whitelisted
6608	WINWORD.EXE	52.109.89.18:443	officeclient.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	NL	whitelisted
6608	WINWORD.EXE	52.113.194.132:443	ecs.office.com	MICROSOFT-CORP-MSN-AS-BLOCK	US	whitelisted
6608	WINWORD.EXE	52.109.76.243:443	roaming.officeapps.live.com	MICROSOFT-CORP-MSN-AS-BLOCK	IE	whitelisted
6608	WINWORD.EXE	2.23.77.188:80	ocsp.digicert.com	AKAMAI-AS	DE	whitelisted
6608	WINWORD.EXE	2.19.126.160:443	omex.cdn.office.net	Akamai International B.V.	DE	whitelisted

DNS requests

Domain	IP	Reputation
www.bing.com	2.21.65.132 2.21.65.153 2.21.65.154 2.21.65.134 2.21.65.157 2.21.65.146	whitelisted
ocsp.digicert.com	2.23.77.188	whitelisted
go.microsoft.com	2.18.97.227	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	2.19.126.160 2.19.126.136	whitelisted
login.live.com	20.190.160.17 20.190.160.131 40.126.32.68 20.190.160.20 20.190.160.67 40.126.32.136 40.126.32.134 40.126.32.140	whitelisted
watson.events.data.microsoft.com	20.189.173.21	whitelisted
www.microsoft.com	95.101.149.131	whitelisted

Threats

No threats detected

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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

Reads Microsoft Office registry keys

Creates files in the program directory

Checks proxy server information

Reads the software policy settings

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