Malware analysis MACRO-DFIR-RETO.xls Malicious activity

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File name:	MACRO-DFIR-RETO.xls
Full analysis:	https://app.any.run/tasks/2ec68c30-075e-4693-a805-51cbfbfaf63d
Verdict:	Malicious activity
Analysis date:	August 04, 2024, 17:05:54
OS:	Windows 10 Professional (build: 19045, 64 bit)
Tags:	macros40
Indicators:
MIME:	application/vnd.ms-excel
File info:	CDFV2 Microsoft Excel
MD5:	CD1D5DCB90901299B28FF9201426DECD
SHA1:	E950AB3DF7BE673792F14EBE334EBA3EAD54DF5E
SHA256:	B7DFFB5ADF108DBAC3890D1D0292334B7CAFBAB508141F5A45C8AE21722B87DE
SSDEEP:	1536:AsssHQHYtrypIh12lcz6xQv+tkbCZ43GVMjKB0/ShPr5Tl7RTFLJD17xDVL5zF7x:suDiEB2995AInPMEbnAh2jV

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
  - EXCEL.EXE (PID: 6436)
- Calls Win API functions (MACROS)
  - EXCEL.EXE (PID: 6436)
- Unusual execution from MS Office
  - EXCEL.EXE (PID: 6436)
SUSPICIOUS
No suspicious indicators.
INFO
No info indicators.

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

.xls	\|	Microsoft Excel sheet (78.9)

EXIF

FlashPix

CodePage:	Windows Latin 1 (Western European)
Company:	-
ScaleCrop:	No
LinksUpToDate:	No
TitleOfParts:	Doc1 Doc2 Doc3 Doc4
HeadingPairs:	Worksheets 1 Excel 4.0 Macros 3

No data.

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All screenshots are available in the full report

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Total processes

134

Monitored processes

Malicious processes

Suspicious processes

Behavior graph

Click at the process to see the details

Process information

PID

CMD

Path

Indicators

Parent process

6436

"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" C:\Users\admin\AppData\Local\Temp\MACRO-DFIR-RETO.xls

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

explorer.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Microsoft Excel

Version:

16.0.16026.20146

Modules

Images
c:\program files\microsoft office\root\office16\excel.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\apphelp.dll
c:\windows\system32\ole32.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\rpcrt4.dll
c:\program files\common files\microsoft shared\clicktorun\appvisvsubsystems64.dll
c:\windows\system32\combase.dll

7120

regsvr32 -s ..\iroto.dll

C:\Windows\System32\regsvr32.exe

—

EXCEL.EXE

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Microsoft(C) Register Server

Exit code:

Version:

10.0.19041.1 (WinBuild.160101.0800)

Modules

Images
c:\windows\system32\regsvr32.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\apphelp.dll
c:\windows\system32\aclayers.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\user32.dll
c:\windows\system32\win32u.dll
c:\windows\system32\gdi32.dll

7136

regsvr32 -s ..\iroto1.dll

C:\Windows\System32\regsvr32.exe

—

EXCEL.EXE

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Microsoft(C) Register Server

Exit code:

Version:

10.0.19041.1 (WinBuild.160101.0800)

Modules

Images
c:\windows\system32\regsvr32.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\apphelp.dll
c:\windows\system32\aclayers.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\user32.dll
c:\windows\system32\win32u.dll
c:\windows\system32\gdi32.dll

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Total events

7 865

Read events

7 619

Write events

228

Delete events

Modification events


(PID) Process:	(6436) EXCEL.EXE	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\Common\ClientTelemetry\Sampling
Operation:	write	Name:	1
Value: 01D014000000001000B24E9A3E02000000000000000600000000000000
(PID) Process:	(6436) EXCEL.EXE	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\Common\CrashPersistence\EXCEL\6436
Operation:	write	Name:	0
Value: 0B0E10C3548248B7E5ED41B5631AB77546E8FC230046F993FDC689D2B9ED016A04102400449A7D64B29D01008500A907556E6B6E6F776EC906022222CA0DC2190000C91003783634C511A432D2120965007800630065006C002E00650078006500C51620C517808004C91808323231322D44656300
(PID) Process:	(6436) EXCEL.EXE	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Common\LanguageResources\EnabledEditingLanguages
Operation:	write	Name:	en-US
Value: 2
(PID) Process:	(6436) EXCEL.EXE	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Common\LanguageResources\EnabledEditingLanguages
Operation:	write	Name:	de-de
Value: 2
(PID) Process:	(6436) EXCEL.EXE	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Common\LanguageResources\EnabledEditingLanguages
Operation:	write	Name:	fr-fr
Value: 2
(PID) Process:	(6436) EXCEL.EXE	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Common\LanguageResources\EnabledEditingLanguages
Operation:	write	Name:	es-es
Value: 2
(PID) Process:	(6436) EXCEL.EXE	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Common\LanguageResources\EnabledEditingLanguages
Operation:	write	Name:	it-it
Value: 2
(PID) Process:	(6436) EXCEL.EXE	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Common\LanguageResources\EnabledEditingLanguages
Operation:	write	Name:	ja-jp
Value: 2
(PID) Process:	(6436) EXCEL.EXE	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Common\LanguageResources\EnabledEditingLanguages
Operation:	write	Name:	ko-kr
Value: 2
(PID) Process:	(6436) EXCEL.EXE	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Common\LanguageResources\EnabledEditingLanguages
Operation:	write	Name:	pt-br
Value: 2

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Executable files

Suspicious files

Text files

Unknown types

Dropped files

PID	Process	Filename		Type
6436	EXCEL.EXE	C:\Users\admin\AppData\Local\Microsoft\TokenBroker\Cache\56a61aeb75d8f5be186c26607f4bb213abe7c5ec.tbres		binary
		MD5:6385D860C0C0B972160DA35A6A097B87	SHA256:B38CBA2E6057EE7B314F4DD55C9C634746191DCE00E07EBCDBEB84BB7614690F
6436	EXCEL.EXE	C:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\E2C6CBAF0AF08CF203BA74BF0D0AB6D5_363582827213C09529A76F35FB615187		binary
		MD5:DCC36A54B057F2BDEED29D2A8F535040	SHA256:3BE635192EAFE532404092E2C815933A105096B44EFC35E48C1AED02D004EBEB
6436	EXCEL.EXE	C:\Users\admin\AppData\Local\Microsoft\Office\16.0\WebServiceCache\AllUsers\officeclient.microsoft.com\825ECA16-09C5-4316-BA59-317308A88973		xml
		MD5:2DBB346E9DB3C6D940B3A0325B14B50E	SHA256:8B00FEDBB71E6ADF44AC4638C30F85518D5F73971B9C2287DE9139690E56C323
6436	EXCEL.EXE	C:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\103621DE9CD5414CC2538780B4B75751		binary
		MD5:3DFCA46E00FFA4795C72A41375F159D3	SHA256:DCBA1A505396539BAC40A7253C9F5DCCF06CBB79957E21D56305E1FC3AF5F40E
6436	EXCEL.EXE	C:\Users\admin\AppData\Local\Microsoft\Office\16.0\UsageMetricsStore\FileActivityStoreV3\Excel\ASkwMDAwMDAwMC0wMDAwLTAwMDAtMDAwMC0wMDAwMDAwMDAwMDBfTnVsbAA.S		binary
		MD5:29EB7C8732862689682B78BE5EDB2C4D	SHA256:6F438EDBD9D3167086BC79CB19FE6EFFDF99818BA5FB8E7F56220DEFCAD8197E
6436	EXCEL.EXE	C:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\E2C6CBAF0AF08CF203BA74BF0D0AB6D5_363582827213C09529A76F35FB615187		binary
		MD5:B089472999FCF03399972720BC7AA291	SHA256:067A6784B26ACEEDCAE8E7B47B7F7B511CE184E8A97EE5EAA2CF0F5B38715E26
6436	EXCEL.EXE	C:\Users\admin\AppData\Local\Microsoft\TokenBroker\Cache\089d66ba04a8cec4bdc5267f42f39cf84278bb67.tbres		binary
		MD5:FC6B8C553678F728F0E1426F028FF77E	SHA256:9A27DA6B30ECCC0496403FCB520F5C6822B9D88F81CD391B34AF3B12BD4A547C
6436	EXCEL.EXE	C:\Users\admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\b8ab77100df80ab2.customDestinations-ms		binary
		MD5:4FCB2A3EE025E4A10D21E1B154873FE2	SHA256:90BF6BAA6F968A285F88620FBF91E1F5AA3E66E2BAD50FD16F37913280AD8228
6436	EXCEL.EXE	C:\Users\admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\2LB6WQXHDB4O25X4QBV2.temp		binary
		MD5:4FCB2A3EE025E4A10D21E1B154873FE2	SHA256:90BF6BAA6F968A285F88620FBF91E1F5AA3E66E2BAD50FD16F37913280AD8228

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
2212	svchost.exe	GET	200	192.229.221.95:80	http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D	unknown	—	—	whitelisted
2212	svchost.exe	GET	200	192.229.221.95:80	http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D	unknown	—	—	whitelisted
3136	backgroundTaskHost.exe	GET	200	192.229.221.95:80	http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQ50otx%2Fh0Ztl%2Bz8SiPI7wEWVxDlQQUTiJUIBiV5uNu5g%2F6%2BrkS7QYXjzkCEAn5bsKVVV8kdJ6vHl3O1J0%3D	unknown	—	—	whitelisted
6436	EXCEL.EXE	GET	200	192.229.221.95:80	http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQ50otx%2Fh0Ztl%2Bz8SiPI7wEWVxDlQQUTiJUIBiV5uNu5g%2F6%2BrkS7QYXjzkCEAUZZSZEml49Gjh0j13P68w%3D	unknown	—	—	whitelisted
6300	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
3888	svchost.exe	239.255.255.250:1900	—	—	—	whitelisted
2876	RUXIMICS.exe	40.127.240.158:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	IE	unknown
4	System	192.168.100.255:137	—	—	—	whitelisted
2120	MoUsoCoreWorker.exe	40.127.240.158:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	IE	unknown
840	svchost.exe	40.127.240.158:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	IE	unknown
4	System	192.168.100.255:138	—	—	—	whitelisted
6436	EXCEL.EXE	52.109.89.18:443	officeclient.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	NL	unknown
6436	EXCEL.EXE	52.113.194.132:443	ecs.office.com	MICROSOFT-CORP-MSN-AS-BLOCK	US	unknown
6436	EXCEL.EXE	188.209.214.83:443	nws.visionconsulting.ro	ROMARG SRL	RO	unknown
6436	EXCEL.EXE	52.111.231.13:443	messaging.lifecycle.office.com	MICROSOFT-CORP-MSN-AS-BLOCK	FR	unknown

DNS requests

Domain	IP	Reputation
google.com	142.250.186.110	whitelisted
settings-win.data.microsoft.com	40.127.240.158	whitelisted
officeclient.microsoft.com	52.109.89.18	whitelisted
ecs.office.com	52.113.194.132	whitelisted
nws.visionconsulting.ro	188.209.214.83	unknown
royalpalm.sparkblue.lk	—	unknown
messaging.lifecycle.office.com	52.111.231.13	whitelisted
www.bing.com	2.23.209.130 2.23.209.140 2.23.209.187 2.23.209.185 2.23.209.189 2.23.209.149 2.23.209.133 2.23.209.179 2.23.209.182	whitelisted
ocsp.digicert.com	192.229.221.95	whitelisted
login.live.com	40.126.32.138 20.190.160.20 40.126.32.140 40.126.32.134 40.126.32.72 40.126.32.136 40.126.32.68 20.190.160.17	whitelisted

Threats

No threats detected

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No debug info

General Info

MACRO-DFIR-RETO.xls

CD1D5DCB90901299B28FF9201426DECD

E950AB3DF7BE673792F14EBE334EBA3EAD54DF5E

B7DFFB5ADF108DBAC3890D1D0292334B7CAFBAB508141F5A45C8AE21722B87DE

1536:AsssHQHYtrypIh12lcz6xQv+tkbCZ43GVMjKB0/ShPr5Tl7RTFLJD17xDVL5zF7x:suDiEB2995AInPMEbnAh2jV

Software environment set and analysis options

Launch configuration

Software preset

Hotfixes

Behavior activities

MALICIOUS

Registers / Runs the DLL via REGSVR32.EXE

Calls Win API functions (MACROS)

Unusual execution from MS Office

SUSPICIOUS

INFO

Malware configuration

Static information

TRiD

EXIF

FlashPix

Video and screenshots

Processes

Behavior graph

Specs description

Process information

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